Patent Publication Number: US-2022219041-A1

Title: Dip apparatus, methods, and systems

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation-in-part of U.S. patent application Ser. No. 17/353,050 filed on Jun. 21, 2021, which claims priority to U.S. Provisional Application No. 63/044,389 filed on Jun. 26, 2020, where the entire content of each of the foregoing is hereby incorporated by reference. 
    
    
     FIELD 
     The present disclosure generally relates to devices, systems, and techniques for exercises such as dip exercises, e.g., a collapsible and portable dip apparatus that can be used in conjunction with one or more resistance bands for performing different exercises and/or for adjusting the intensity of exercises. 
     BACKGROUND 
     “Dips” are generally bodyweight exercises that work the triceps as well as muscles of the chest and shoulders. The exercise is called a “dip” because a user lowers their body between gripping regions (e.g., parallel bars) as they attempt to bend their elbows to an angle of approximately 90 degrees and return to an upright position where their elbows are approximately 180 degrees. Dips can be a challenging (or impossible) exercise for users with poor upper body strength and/or excessive lower body weight. Existing dip machines that provide support for such users—which are typically located in commercial or professional gyms because of their bulk and expense—can be equipped with weights, cables, and the like that allow a user to select how much upward assistance they need or desire to complete an exercise. Depending on the model of dip machine that includes such upward assistance, a user typically stands or kneels on a platform that is connected to weights by pulleys (or similar) to provide upward assistance while performing the dip exercise. These machines are typically designed for both pullups and dips, and they are usually bulky, non-portable, and/or expensive. 
     Dip exercise devices that are less bulky and less expensive than the aforementioned dip machines are available, e.g., for home use and the like. Typically, these dip exercise devices include setups featuring waist-high stands having an upper parallel bar portion for a user to grasp and perform dips while bending their knees so as to maintain their body above the floor. Often, these devices lack stability (e.g., they can be “shaky” and unstable for many users), they include a footprint that is not easily adjustable for storage and the like, and they lack any means for providing support for users that cannot (or do not desire to) use their entire body weight when performing a dip exercise. 
     There remains a need for improved devices, systems, and techniques for dip exercises. 
     SUMMARY 
     An exercise system may include a dip apparatus having gripping bars for a user to grip and one or more resistance bands releasably attachable to the dip apparatus below the gripping bars to assist the user when performing a dip exercise by providing an upward force counteracting at least a portion of the user&#39;s weight. To this end, the dip apparatus may include support bars disposed below the gripping bars, where the support bars are structurally configured to engage with one or more resistance bands. More particularly, each of the support bars may include couplers that have a portion structurally configured to receive a resistance band, which may be formed as a continuous loop. 
     In an aspect, an exercise system disclosed herein may include a dip apparatus featuring: a first side structure including a first gripping bar supported by a first leg and a second leg, and a first support bar connecting the first leg and the second leg, the first support bar disposed below the first gripping bar along a z-axis; and a second side structure including a second gripping bar disposed opposite the first gripping bar and supported by a third leg and a fourth leg, and a second support bar connecting the third leg and the fourth leg, the second support bar disposed below the second gripping bar along the z-axis. The exercise system may also include a plurality of support bar couplers including at least a first coupler and a second coupler, each of the first coupler and the second coupler including a first engagement portion and a second engagement portion, the first engagement portion structurally configured for engagement with one or more of the first support bar and the second support bar, and the second engagement portion structurally configured for releasable engagement with a resistance band. The exercise system may also include one or more resistance bands, each of the one or more resistance bands configurable into a continuous loop and engageable with the second engagement portion of the plurality of support bar couplers. 
     Implementations may include one or more of the following features. The first engagement portion of the plurality of support bar couplers may include a hook-shaped portion sized and shaped to envelop at least a portion of one or more of the first support bar and the second support bar. Each of the first support bar and the second support bar may include a void, and the first engagement portion of the plurality of support bar couplers may include a projection sized and shaped to be received within the void. The exercise system may further include: a void included on each of the first support bar and the second support bar; and a projection included on the first engagement portion of the plurality of support bar couplers, the projection sized and shaped to be received within the void. The exercise system may also include a hook-shaped portion included on the first engagement portion of the plurality of support bar couplers, the hook-shaped portion sized and shaped to envelop at least a portion of one or more of the first support bar and the second support bar when the projection is positioned within the void to facilitate engagement between a support bar coupler and a support bar of the dip apparatus. The second engagement portion of the plurality of support bar couplers may include an arm structurally configured to receive a portion of the continuous loop of the one or more resistance bands about a portion of the arm. The arm may be aligned substantially parallel to a support bar when the first engagement portion is engaged with the support bar. The arm may be cantilevered from a portion of a support bar coupler. The plurality of support bar couplers may be removable and replaceable relative to the dip apparatus. The plurality of support bar couplers may be permanently affixed to the dip apparatus. One or more of the resistance bands may include at least two resistance bands each having a different modulus of elasticity. One or more of the first gripping bar, the second gripping bar, the first support bar, and the second support bar may be adjustable along the z-axis. 
     In an aspect, a dip apparatus disclosed herein may include: a first side structure including a first gripping bar supported by a first leg and a second leg, and a first support bar connecting the first leg and the second leg, the first support bar disposed below the first gripping bar along a z-axis; a second side structure including a second gripping bar disposed opposite the first gripping bar and supported by a third leg and a fourth leg, and a second support bar connecting the third leg and the fourth leg, the second support bar disposed below the second gripping bar along the z-axis; and a first coupler and a second coupler, each of the first coupler and the second coupler including a first engagement portion and a second engagement portion, the first engagement portion structurally configured for engagement with one or more of the first support bar and the second support bar, and the second engagement portion structurally configured for releasable engagement with a resistance band. 
     Implementations may include one or more of the following features. The first leg and the second leg may be adjustable along the z-axis to relocate the first gripping bar along the z-axis, and the third leg and the fourth leg may be adjustable along the z-axis to relocate the second gripping bar along the z-axis. The dip apparatus may further include a central support structure connecting the first side structure to the second side structure, where each of the first side structure and the second side structure are pivotable towards the central support structure thereby reducing a footprint of the dip apparatus. The dip apparatus may further include: a void included on each of the first support bar and the second support bar; and a projection included on the first engagement portion of each of the first coupler and the second coupler, the projection sized and shaped to be received within the void. The dip apparatus may also include a hook-shaped portion included on the first engagement portion of each of the first coupler and the second coupler, the hook-shaped portion sized and shaped to envelop at least a portion of one or more of the first support bar and the second support bar when the projection is positioned within the void to facilitate engagement between a coupler and a support bar of the dip apparatus. 
     In an aspect, a method of performing a dip exercise disclosed herein may include: engaging a resistance band to a first support bar and a second support bar of a dip apparatus, the resistance band engageable to a portion of a support bar coupler included on each of the first support bar and a second support bar; gripping a first gripping bar disposed above the first support bar relative to a z-axis; gripping a second gripping bar disposed above the second support bar relative to the z-axis; placing a body part on the resistance band; and, while gripping at least a portion of each of the first gripping bar and the second gripping bar, performing a dipping motion downward along the z-axis, where the resistance band provides an upward force counteracting at least a portion of a weight of a user performing the dip exercise. 
     Implementations may include one or more of the following features. The resistance band may be formed as a continuous loop, and engaging the resistance band to the first support bar and the second support bar may include looping the resistance band around an arm included on the support bar coupler included on each of the first support bar and a second support bar. The method may further include engaging the support bar coupler to each of the first support bar and the second support bar. Engaging the support bar coupler may include placing a hook-shaped portion thereof about at least a portion of a support bar. Engaging the support bar coupler may include mating a projection included on one or more of a support bar and the support bar coupler with a void included on the other one of the support bar and the support bar coupler. 
     A collapsible and portable dip apparatus may be structurally configured for use with one or more resistance bands for adjusting the intensity of exercises. Specifically, a dip apparatus according to the present teachings may include side structures that are pivotable towards a central support structure to reduce a footprint of the dip apparatus, e.g., for storage. Further, the side structures may include support bars that are structurally configured for engagement with a resistance band, where the support bars are located below gripping bars of the dip apparatus. To this end, the present teachings include an exercise system featuring the aforementioned dip apparatus and resistance bands, where a user can engage a resistance band with each of the side structures of the dip apparatus such that a user can place his/her knees on the resistance band for support when performing a dip exercise. 
     In an aspect, an exercise system disclosed herein includes collapsible and portable dip apparatus. The dip apparatus may include a first side structure including: a first gripping bar supported by a first leg and a second leg, where the first leg and the second leg are adjustable along a z-axis to relocate the first gripping bar along the z-axis; and a first support bar connecting the first leg and the second leg, the first support bar disposed below the first gripping bar along the z-axis. The dip apparatus may further include a second side structure disposed opposite the first side structure and aligned substantially parallel to the first side structure when the dip apparatus is positioned for a dip exercise, the second side structure including: a second gripping bar disposed opposite the first gripping bar, the second gripping bar supported by a third leg and a fourth leg, where the third leg and the fourth leg are adjustable along the z-axis to relocate the second gripping bar along the z-axis; and a second support bar connecting the third leg and the fourth leg, the second support bar disposed below the second gripping bar along the z-axis. The dip apparatus may also include a central support structure connecting the first side structure to the second side structure, where each of the first side structure and the second side structure are pivotable towards the central support structure thereby reducing a footprint of the dip apparatus when the dip apparatus is positioned for storage. The exercise system may also include one or more resistance bands, where a resistance band of the one or more resistance bands is structurally configured to engage with the first support bar and the second support bar. 
     Implementations may include one or more of the following features. The resistance band may include a first end and a second end, where each of the first end and the second end is structurally configured to engage with the first support bar and the second support bar. The resistance band may include a hook disposed on each of the first end and the second end. The resistance band may include a first end including a first connector and a second end including a second connector, where the first connector and the second connector are attachable to one another. One or more of the first connector and the second connector may include a clip. One or more of the first connector and the second connector may include a hook. The first connector may include a protrusion, where the second connector includes a void to receive the protrusion. The resistance band may be made from an elastic material. The resistance band may be made from rubber. The resistance bands may include at least two resistance bands each having a different modulus of elasticity. The resistance bands may include three or more resistance bands, where each of the three or more resistance bands has a different modulus of elasticity. The first leg, the second leg, the third leg, and the fourth leg may be independently adjustable along the z-axis. The first leg and the second leg may adjust in a cooperating manner, and the third leg and the fourth leg may adjust in a cooperating manner. The first support bar and the second support bar may each be adjustable along the z-axis. Each of the first gripping bar and the second gripping bar may include a handle. The handle may include a gripping region disposed along each of the first gripping bar and the second gripping bar. The gripping region may include a softer material than that of the first gripping bar and the second gripping bar. The gripping region may include a foam material. The handle may protrude from the first gripping bar and the second gripping bar. The handle may include an indention in the first gripping bar and the second gripping bar. 
     In an aspect, a collapsible and portable dip apparatus disclosed herein may include: a first side structure including a first gripping bar supported by a first leg and a second leg, where the first leg and the second leg are adjustable along a z-axis to relocate the first gripping bar along the z-axis, and a first support bar connecting the first leg and the second leg, the first support bar disposed below the first gripping bar along the z-axis. The dip apparatus may further include a second side structure disposed opposite the first side structure and aligned substantially parallel to the first side structure when the dip apparatus is positioned for a dip exercise, the second side structure including: a second gripping bar disposed opposite the first gripping bar, the second gripping bar supported by a third leg and a fourth leg, where the third leg and the fourth leg are adjustable along the z-axis to relocate the second gripping bar along the z-axis; and a second support bar connecting the third leg and the fourth leg, the second support bar disposed below the second gripping bar along the z-axis. The dip apparatus may also include a central support structure connecting the first side structure to the second side structure, where each of the first side structure and the second side structure are pivotable towards the central support structure thereby reducing a footprint of the dip apparatus when the dip apparatus is positioned for storage. Each of the first support bar and the second support bar may be structurally configured for engagement with one or more resistance bands. 
     In an aspect, a method disclosed herein may include: engaging a resistance band to a first support bar and a second support bar of a dip apparatus, where the dip apparatus includes a first side structure including a first gripping bar supported by a first leg and a second leg, and the first support bar, where the first support bar connects the first leg and the second leg, and where the first support bar is disposed below the first gripping bar along an z-axis; a second side structure including a second gripping bar supported by a third leg and a fourth leg, and the second support bar, where the second support bar connects the third leg and the fourth leg, and where the second support bar is disposed below the second gripping bar along the z-axis; and a central support structure connecting the first side structure to the second side structure. The method may further include placing a body part on the resistance band, and, while gripping at least a portion of each of the first gripping bar the second gripping bar, performing a dipping motion downward along the z-axis, where the resistance band provides an upward force counteracting a weight of a user performing the dip exercise. 
     Implementations may include one or more of the following features. The method may further include positioning the dip apparatus for the dip exercise by pivoting each of the first side structure and the second side structure away from the central support structure such that the first side structure and the second side structure are aligned substantially parallel to one another. The method may further include locking a position of each of the first side structure and the second side structure. The method may further include positioning the dip apparatus for storage by pivoting each of the first side structure and the second side structure toward the central support structure such that the first side structure and the second side structure are substantially aligned with the central support structure thereby reducing a footprint of the dip apparatus. The method may further include locking a position of each of the first side structure and the second side structure. The method may further include adjusting one or more of the first leg, the second leg, the third leg, and the fourth leg along the z-axis to relocate one or more of the first gripping bar and the second gripping bar along the z-axis. The method may further include locking a position of one or more of the first leg, the second leg, the third leg, and the fourth leg along the z-axis. 
     These and other features, aspects, and advantages of the present teachings will become better understood with reference to the following description, examples, and appended claims. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The foregoing and other objects, features, and advantages of the devices, systems, and methods described herein will be apparent from the following description of particular embodiments thereof, as illustrated in the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the devices, systems, and methods described herein. In the drawings, like reference numerals generally identify corresponding elements. 
         FIG. 1  illustrates an exercise system, in accordance with a representative embodiment. 
         FIG. 2  illustrates a side view of an exercise system, in accordance with a representative embodiment. 
         FIG. 3  illustrates resistance bands for use in an exercise system, in accordance with a representative embodiment. 
         FIG. 4  illustrates resistance bands for use in an exercise system, in accordance with a representative embodiment. 
         FIG. 5  is a flow chart of a method of performing a dip exercise, in accordance with a representative embodiment. 
         FIG. 6  illustrates a front perspective view of an exercise system, in accordance with a representative embodiment. 
         FIG. 7  illustrates a top, rear perspective view of an exercise system, in accordance with a representative embodiment. 
         FIG. 8  illustrates a front view of an exercise system, in accordance with a representative embodiment. 
         FIG. 9  illustrates a rear view of an exercise system, in accordance with a representative embodiment. 
         FIG. 10  illustrates a side view of an exercise system, in accordance with a representative embodiment. 
         FIG. 11  illustrates a top view of an exercise system, in accordance with a representative embodiment. 
         FIG. 12  illustrates a bottom view of an exercise system, in accordance with a representative embodiment. 
         FIG. 13  is a close-up, top view of a coupler engaged with a resistance band in an exercise system, in accordance with a representative embodiment. 
         FIG. 14  is a close-up, side view of a coupler engaged with a resistance band in an exercise system, in accordance with a representative embodiment. 
         FIG. 15  shows a coupler aligned for engagement with a portion of a dip apparatus, in accordance with a representative embodiment. 
         FIG. 16  shows a coupler engaged with a portion of a dip apparatus, in accordance with a representative embodiment. 
         FIG. 17  is a flow chart of a method of performing a dip exercise, in accordance with a representative embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     The embodiments will now be described more fully hereinafter with reference to the accompanying figures, in which preferred embodiments are shown. The foregoing may, however, be embodied in many different forms and should not be construed as limited to the illustrated embodiments set forth herein. Rather, these illustrated embodiments are provided so that this disclosure will convey the scope to those skilled in the art. 
     All documents mentioned herein are hereby incorporated by reference in their entirety. References to items in the singular should be understood to include items in the plural, and vice versa, unless explicitly stated otherwise or clear from the text. Grammatical conjunctions are intended to express any and all disjunctive and conjunctive combinations of conjoined clauses, sentences, words, and the like, unless otherwise stated or clear from the context. Thus, the term “or” should generally be understood to mean “and/or” and so forth. 
     Recitation of ranges of values herein are not intended to be limiting, referring instead individually to any and all values falling within the range, unless otherwise indicated herein, and each separate value within such a range is incorporated into the specification as if it were individually recited herein. The words “about,” “approximately” or the like, when accompanying a numerical value, are to be construed as indicating a deviation as would be appreciated by one of ordinary skill in the art to operate satisfactorily for an intended purpose. Similarly, words of approximation such as “about,” “approximately,” or “substantially” when used in reference to physical characteristics, should be understood to contemplate a range of deviations that would be appreciated by one of ordinary skill in the art to operate satisfactorily for a corresponding use, function, purpose, or the like. Ranges of values and/or numeric values are provided herein as examples only, and do not constitute a limitation on the scope of the described embodiments. Where ranges of values are provided, they are also intended to include each value within the range as if set forth individually, unless expressly stated to the contrary. The use of any and all examples, or exemplary language (“e.g.,” “such as,” or the like) provided herein, is intended merely to better illuminate the embodiments and does not pose a limitation on the scope of the embodiments. No language in the specification should be construed as indicating any unclaimed element as essential to the practice of the embodiments. 
     In the following description, it is understood that terms such as “first,” “second,” “top,” “bottom,” “up,” “down,” “above,” “below,” and the like, are words of convenience and are not to be construed as limiting terms unless specifically stated to the contrary. 
     In general, the devices, systems, and methods disclosed herein relate to exercise, fitness, health, rehabilitation, and the like. In particular, an aspect of the present teachings is related to a system for performing dip exercises featuring a collapsible and portable dip apparatus, and resistance bands that are engageable thereto, e.g., to provide upward assistance for a user of the system. In this manner, the present teachings may represent various, salient improvements over existing, comparable exercise equipment and systems such as being relatively easily portable, being relatively easily adjustable, being relatively inexpensive, and featuring a solution to provide assistance to users that may require or desire such adaptivity. That is, many existing dip exercise systems are bulky, expensive, non-collapsible, non-adjustable, and/or that do not include any mechanism for providing upward assistance for a user. In particular, many less-cumbersome home dip mechanisms that may be storable often do not provide upward assistance for a user, thus limiting their use to those users that are capable or desirous of performing a dip exercise without assistance. In contrast, many commercial, professional-grade dip exercise systems (such as those in commercial gyms, educational facilities, and training facilities) may provide relatively complex platform systems with pulleys/weights for providing assistance to users performing dip exercises, but these dip exercise systems are often cumbersome, expensive, and/or difficult to use. The present teachings may thus provide advantages over existing systems and devices by being collapsible, portable, easy to use, adjustable, and accommodatable to a user desiring or requiring support and/or upward assistance when performing a dip exercise. 
     It will be understood that, while the present teachings may emphasize use of the exercise devices, systems, and methods for performing dip exercises (assisted by resistance bands, or unassisted), the scope of the present teachings should not be limited to such exercises. Thus, the techniques disclosed herein may be adapted for use for other exercises including without limitation one or more of pull-ups, push-ups, and the like, among others. As such, all such embodiments are intended to be included herein. 
       FIG. 1  illustrates an exercise system, in accordance with a representative embodiment. In general, the system  100  may include a dip apparatus  101  and one or more resistance bands  150  that are engageable thereto, e.g., to provide support and/or upward assistance to a user when performing a dip exercise (or other exercise) using the dip apparatus  101 . The dip apparatus  101  may be collapsible and/or portable as described herein. The dip apparatus  101  may generally include a first side structure  110 , a second side structure  120 , and a central support structure  130 . 
     The first side structure  110  may include a first gripping bar  116  supported by a first leg  111  and a second leg  112 . The first leg  111  and the second leg  112  may be adjustable and/or lockable along a z-axis  102  to relocate the first gripping bar  116  along the z-axis  102 , e.g., for adjusting the height of one or more components of the first side structure  110 . For example, adjustment and/or locking of the first gripping bar  116  along the z-axis  102  may be provided by a wing nut, a spring loaded element, or the like that is engageable with one or more positioning holes disposed along a portion of one or more of the first leg  111  and the second leg  112 . In this manner, adjustment and/or locking of the first gripping bar  116  along the z-axis  102  may utilize the same height-adjustment mechanism, or a similar mechanism, to those found on crutches, walkers, canes, and the like. 
     The first side structure  110  may further include a first support bar  118  connecting the first leg  111  and the second leg  112 . The first support bar  118  may be disposed below the first gripping bar  116  along the z-axis  102  as shown in the figure. The first support bar  118  may be structurally configured for engagement with one or more resistance bands  150 . It will be understood that, although shown as connected to both the first leg  111  and the second leg  112 , the first support bar  118  may instead be connected to only one of these legs and/or to another component of the dip apparatus  101 —e.g., the first support bar  118  may be cantilevered from one or more components of the dip apparatus  101 . Also or instead, the first support bar  118  may include one or more sections, and/or the first support bar  118  may be movable relative to another component of the dip apparatus  101 , for example to accommodate mating with an end of a resistance band  150  (e.g., by looping or hooking a resistance band  150  thereabout). By way of example, the first support bar  118  may include at least two portions that are selectively engageable and releasable relative to one another (and/or relative to another component of the dip apparatus  101 ). In this manner, when the first support bar  118  is disposed in a unengaged state, an end of a resistance band  150  may be slipped onto or otherwise engaged with a free end of a portion of the first support bar  118 , where the portions thereof can then be reengaged before use of the dip apparatus  101  with the resistance band  150  coupled thereto. By way of further example, a portion of the first support bar  118  may be pivotable along the z-axis  102  (e.g., in an upward direction) for freeing an end of the first support bar  118  to accommodate engagement with a resistance band  150 , and pivotable back (e.g., downward along the z-axis  102 ) into engagement to recouple the end of the first support bar  118  after engagement with the resistance band  150 . 
     The second side structure  120  may be disposed opposite the first side structure  110  and aligned substantially parallel to the first side structure  110  when the dip apparatus  101  is positioned for a dip exercise, where the dip apparatus  101  is so positioned in  FIG. 1 . The second side structure  120  may be the same or similar to the first side structure  120  and may thus include any of the features described above with reference to the first side structure  120  (and vice-versa), e.g., the second side structure  120  may mirror the first side structure  110 . For example, the second side structure  120  may include a second gripping bar  126  disposed opposite the first gripping bar  116 . And the second gripping bar  126  may be supported by a third leg  123  and a fourth leg  124 , where the third leg  123  and the fourth leg  124  are adjustable and/or lockable along the z-axis  102  to relocate the second gripping bar  126  along the z-axis  102 . The adjustment and/or locking mechanism for the second gripping bar  126  along the z-axis  102  may be the same as, or similar to, that used for adjustment and/or locking of the first gripping bar  116  along the z-axis  102 . 
     The second side structure  120  may include a second support bar  128  connecting the third leg  123  and the fourth leg  124 . The second support bar  128  may be disposed below the second gripping bar  126  along the z-axis  102 . The second support bar  128  may be structurally configured for engagement with one or more resistance bands  150 . The second support bar  128  may be the same or similar to the first support bar  118  and may thus include any of the features described above with reference to the first support bar  118  (and vice-versa), e.g., the second support bar  128  may mirror the first support bar  118 . 
     The central support structure  130  may connect the first side structure  110  to the second side structure  120 . When the dip apparatus  101  is positioned for a dip exercise (e.g., in the configuration shown in  FIG. 1 ), the central support structure  130  may be aligned along a central axis  132  that is intersected by an axis  134  disposed through the first side structure  110  and the second side structure  120 . For example, in certain aspects, when positioned for a dip exercise, an axis  134  disposed through the first side structure  110  and the second side structure  120  (such that this axis  134  is substantially aligned with the first gripping bar  116  and the second gripping bar  126 —e.g., where this axis  134  would traverse into and out of the page when looking at  FIG. 1 ) may be substantially perpendicular to the central axis  132  disposed through the central support structure  130 . 
     However, when the dip apparatus  101  is positioned for storage, each of the first side structure  110  and the second side structure  120  may be substantially aligned along the same axis—the central axis  132 —as the central support structure  130  (e.g., at least within 30-degrees of alignment to this central axis  132 ). To this end, in an aspect, each of the first side structure  110  and the second side structure  120  are pivotable (or otherwise movable) towards the central support structure  130  thereby reducing a footprint of the dip apparatus  101  when the dip apparatus  101  is positioned for storage. For example, the second leg  112  and the fourth leg  124  in the figure may be movable toward the central support structure  130  in the direction of arrows  103  in the figure. A hinge or similar—e.g., disposed between the central support structure  130  and one or more of the first side structure  110  and the second side structure  120 —may be provided to accommodate such movement of the first side structure  110  and the second side structure  120 . 
     The system  100  may further include one or more resistance bands  150  as stated above and described herein. A resistance band  150  of the one or more resistance bands  150  may be structurally configured to engage with the first support bar  118  and the second support bar  128  of the dip apparatus  101 , and/or another portion of the dip apparatus  101 . For example, a resistance band  150  may include a first end  151  and a second end  152 , where each of the first end  151  and the second end  152  is structurally configured to engage with one or more of the first support bar  118  and the second support bar  128 . Continuing with this example, in an aspect, the resistance band  150  may include a hook or the like disposed on each of the first end  151  and the second end  152 , e.g., for hooking into or around one or more of the first support bar  118  and the second support bar  128  for engagement thereto, and/or for hooking together or otherwise coupling the first end  151  and the second end  152  of the resistance band  150  after looping the resistance band  150  around the first end  151  and the second end  152 . Other couplers are also or instead possible for inclusion on ends of the resistance band  150 . Regardless of how it is accomplished, a resistance band  150  may be engageable with the first support bar  118  and the second support bar  128  in a manner such that the resistance band  150  is relatively stable on the dip apparatus  101 , e.g., for a user to place at least a portion of their weight on the resistance band  150  when performing a dip exercise. For example, in use, a user may place his/her knees on the resistance band  150  for upward support when performing a dip exercise. In this manner, the resistance bands  150  may be structurally configured for assisting a user in performing a dip exercise when one or more resistance bands  150  are engaged with the dip apparatus  101 . That is, the resistance bands  150  may actually be thought of as “assistance bands” or the like. 
     It should be noted that a resistance band  150  may also or instead be engageable with another portion of the dip apparatus  101 , e.g., in addition to or instead of the first support bar  118  and the second support bar  128 . For example, a resistance band  150  and/or a portion of the dip apparatus  101  may be configured for engagement between one or more of the legs of the dip apparatus  101  (or another portion of the first side structure  110  and/or the second side structure  120 ), the central support structure  130 , and so on. 
     A resistance band  150  may be made from an elastic material, e.g., rubber and the like. In a system  100  including a set of resistance bands  150 , the set of resistance bands  150  may include at least two resistance bands  150  each having a different modulus of elasticity. For example, the set of resistance bands  150  may include three or more resistance bands  150 , where each of the three or more resistance bands  150  has a different modulus of elasticity. Any number of resistance bands  150  is also or instead possible. It shall be generally understood that the different modulus of elasticity of the resistance bands  150  would equate to a different resistance (through a different degree of flexing) for a user performing a dip exercise. Stated otherwise, the more a resistance band  150  flexes when supporting a user&#39;s weight, the less support the resistance band  150  will provide for a user performing a dip exercise. And, in this manner, different resistance bands  150  having different flexibilities may be included in the system  100 . For example, the different resistance bands  150  shown in the figures may each be structurally configured to have a different modulus of elasticity, and therefore to provide a different level of support for a user. And, in this manner, it will be understood that the different resistance bands  150  shown in the figures generally have different hatching/shading patterns to represent the different modulus of elasticities thereof, or another property difference between the resistance bands  150 . In certain implementations, more than one resistance band  150  may be utilized on the dip apparatus  101  for assisting a user in performing a dip exercise. To this end, the resistance bands  150  may be disposed adjacent to one another on the dip apparatus  101 —e.g., on top of one another, and/or side by side. 
     As discussed above, the height of the dip apparatus  101  may be adjustable, e.g., to accommodate users of differing sizes. For example, the first leg  111 , the second leg  112 , the third leg  123 , and the fourth leg  124  may be independently adjustable along the z-axis  102 . In another aspect, the first leg  111  and the second leg  112  adjust in a cooperating manner, and the third leg  123  and the fourth leg  124  adjust in a cooperating manner. The first leg  111 , the second leg  112 , the third leg  123 , and the fourth leg  124  may also or instead include feet thereon, which may also or instead be adjustable (e.g., to achieve different stability through changing the size or shape of the feet, and/or to change the height of the dip apparatus  101 ). The feet may be formed of a shape conducive for stability, or otherwise structurally configured for exercising using the dip apparatus  101 . For example, the feet may include a cross section shaped as a square, a rectangle, a circle or other rounded shape such as an oval, a triangle, a star, a clover, a cross, a diamond, and so on. The feet may also or instead include a material selected to provide a relatively large amount of friction with the ground upon which the dip apparatus  101  sits upon—e.g., the material may include a rubber or the like. 
     Also, or instead, the first gripping bar  116  and the second gripping bar  126  may each be adjustable along the z-axis  102 . For example, the first gripping bar  118  and the second gripping bar  128  may each be adjustable along the z-axis  102  through adjustment of the legs of the dip apparatus  101 . Also, or instead, the first gripping bar  116  and the second gripping bar  126  may each be adjustable along the z-axis  102  independent or otherwise separate from the adjustability of the legs of the dip apparatus  101 . Thus, in an aspect, the first gripping bar  116  and the second gripping bar  126  may each be adjustable along the z-axis  102  relative to the z-axis height of one or more of the first support bar  118  and the second support bar  128 . The adjustment mechanism for one or more of the first gripping bar  116  and the second gripping bar  126  may be the same as or similar to any as described herein, e.g., with reference to the legs of the dip apparatus  101 . 
     Also, or instead, the first support bar  118  and the second support bar  128  may each be adjustable along the z-axis  102 . For example, the first support bar  118  and the second support bar  128  may each be adjustable along the z-axis  102  through adjustment of the legs of the dip apparatus  101 . Also, or instead, the first support bar  118  and the second support bar  128  may each be adjustable along the z-axis  102  independent or otherwise separate from the adjustability of the legs of the dip apparatus  101 . In an aspect, the first support bar  118  and the second support bar  128  may each be adjustable relative to a z-axis height of the first gripping bar  116  and the second gripping bar  126 . In this manner, the first support bar  118  and the second support bar  128  may be slidable and lockable along one or more of the legs of the dip apparatus  101 . Also or instead, the adjustment mechanism for one or more of the first support bar  118  and the second support bar  128  may be the same as or similar to any as described herein, e.g., with reference to the adjustment mechanisms for the legs of the dip apparatus  101 . Stated otherwise, adjustment of one or more of the aforementioned components may be provided by ball lock pins, sliders, wing nuts, bolts, screws, tensioners, or the like. 
     In an aspect, each of the first gripping bar  116  and the second gripping bar  126  includes a handle  117 . The handle  117  may simply include a designated gripping region disposed along each of the first gripping bar  116  and the second gripping bar  126 , e.g., a region structurally configured for a user to hold onto when performing a dip exercise. In some aspects, this gripping region includes a softer material than that of the first gripping bar  116  and the second gripping bar  126 . For example, the gripping region may include a foam material and/or a rubber material, and the first gripping bar  116  and the second gripping bar  126  may include a harder material such as metal or plastic. In some aspects, the handle  117  protrudes from the first gripping bar  116  and the second gripping bar  126 . In other aspects, the handle  117  includes an indention in the first gripping bar  116  and the second gripping bar  126 . 
       FIG. 2  illustrates a side view of an exercise system, in accordance with a representative embodiment. The system  200  shown in  FIG. 2  may be the same or similar to that shown in  FIG. 1 , but where a resistance band  250  is positioned for use on the dip apparatus  201 . It will be understood, however, that more than one resistance band  250  may be positioned for use on the dip apparatus  201 . 
     As shown in  FIG. 2 , an embodiment of a resistance band  250  that may be used on the dip apparatus  201  may include a coupler  254 , which may be comprised of a first connector and a second connector that are engageable with one another to provide stability for the resistance band  250  (e.g., by forming a continuous loop that is releasably locked in that configuration, and that is disposed around at least a portion of the dip apparatus  201 ). For example, the coupler  254  may include a clip, a buckle, a clasp, and the like. 
       FIG. 3  illustrates resistance bands for use in an exercise system, in accordance with a representative embodiment. As shown in this figure, different resistance bands  350  may include different sizes, shapes, couplers, and the like. For example, the resistance bands  350  may be structurally configured to provide different resistance (and thus different assistance to a user performing a dip exercise or the like using a dip apparatus as described herein) through their shape, e.g., as dictated by the thicknesses of the resistance bands  350 . For example, from thickest to thinnest, the resistance bands  350  shown may support, and thus provide assistance equating to, 150 lbs., 130 lbs., 120 lbs., and 100 lbs.—however, it will be understood that the sizes, shapes, and other attributes of the resistance bands  350  are provided by way of example and can be different from that shown. 
     As similarly shown in the figure, a resistance band  350  may be formed as a continuous loop (e.g., to be slipped onto and looped around one or more portions of a dip apparatus according to the present teachings), or a resistance band  350  may include free ends, where such free ends may be couplable to each other and/or a component of a dip apparatus according to the present teachings. 
     In particular, as demonstrated by a first resistance band  350   a  in the figure, the first resistance band  350   a  may include a first end  351  including a first connector  353  and a second end  352  including a second connector  354 , where the first connector  353  and the second connector  354  are attachable to one another and/or to a component of a dip apparatus according to the present teachings. For example, and as shown in the figure, one or more of the first connector  353  and the second connector  354  may include portions of a clip, a buckle, a clasp, or the like. Also or instead, one or more of the first connector  353  and the second connector  354  may include a hook or the like. Also or instead, the first connector  353  may include a protrusion, and the second connector  354  may include a void to receive the protrusion of the first connector  353  (or vice-versa). Other configurations for such connectors are also or instead possible. For example, connectors on ends of a resistance band  350  may include one or more of a dowel, hook and loop connectors, mechanically keying features, a latch, a pin, a screw, a slider, a snap, and so on. And, as described herein, the connectors may be structurally configured for releasably securing free ends of a resistance band  350  to one another and/or to a portion of a dip apparatus according to the present teachings such as the support bars described herein. 
       FIG. 4  illustrates resistance bands for use in an exercise system, in accordance with a representative embodiment. Specifically, this figure shows two sets of resistance bands—a first set  450   a  and a second set  450   b  of resistance bands—where it will be understood that more or less, and/or different types of, resistance bands are possible for use in the present teachings. The different hatching/shading shown on the resistance bands may represent different attributes of a resistance band relative to others in the set of resistance bands—and, it will be understood that the hatching is merely shown by way of example, as other forms of demarcation such as labeling (e.g., with words, numbers, letters, properties, measurements, and the like) and/or coloring are also or instead possible. For example, the marking of a resistance band may represent a specific modulus of elasticity for the resistance band, where this modulus of elasticity correlates to the amount of assistance a particular resistance band would provide for a user when the resistance band is engaged with a dip apparatus according to the present teachings and the user performs a dip exercise or the like while engaged with the resistance band (e.g., with the user&#39;s knees on the resistance band thereby providing support for the user). 
     Resistance bands in the first set  450   a  may include continuous loops, where these resistance bands can be looped about a portion of a dip apparatus such as one or more of a first support bar and a second support bar as described herein. To accommodate such looping about, these portions of the dip apparatus may include slots or free ends for placing one or more continuous loop resistance bands thereabout, and/or these portions of the dip apparatus may be movable to expose an end about which to place one or more continuous loop resistance bands. These portions of the dip apparatus may also or instead include one or more features for locking a resistance band in engagement with the dip apparatus, e.g., for safety when in use. 
     Resistance bands in the first set  450   a  may also or instead include ends that form loops or the like—on a first end  451   a  and a second end  452   a  thereof. These ends may thus be configured for looping about one or more portions of a dip apparatus such as a first support bar and a second support bar as described herein. Thus, engagement of a resistance band to a dip apparatus may include looping or wrapping a resistance band about one or more portions of a dip apparatus such as a first support bar and a second support bar as described herein—where it will be understood that the ends (or the resistance band overall) may be structurally configured to accommodate such looping or wrapping for engagement. Other affixing means are also or instead possible, as will be understood by a skilled artisan. 
     A resistance band—such as those shown in the second set  450   b —may also or instead include an end that is structurally configured for at least one of (i) affixing to an opposing end of the resistance band, and/or (ii) affixing to one or more portions of a dip apparatus such as a first support bar and a second support bar as described herein. In this manner, and as shown in the figure, the first end  451   b  of a resistance band may include a first connector  453  and a second end  452   b  of a resistance band may include a second connector  454 , where the second connector  454  may be the same type of connector (and/or a corresponding/mating connector) or a different type of connector as the first connector  453 . By way of example, and as shown in the figure, one or more of the first connector  453  and the second connector  454  (e.g., each of the first connector  453  and the second connector  454 ) may include a hook or the like. Such a hook or the like may be structurally configured for at least one of (i) affixing to an opposing end of the resistance band (e.g., to an opposing hook or the like), e.g., after wrapping the resistance band about a portion of a dip apparatus, and/or (ii) affixing to one or more portions of a dip apparatus such as a first support bar and a second support bar as described herein, such as by hooking around or through such a support bar. As described herein, other forms of connectors are also or instead possible for the resistance bands. Similarly, one or more portions of a dip apparatus such as a first support bar and a second support bar as described herein may include specific mating features to facilitate engagement with a resistance band such as one or more of a void, a protrusion, a free end, and the like. 
       FIG. 5  is a flow chart of a method of performing a dip exercise, in accordance with a representative embodiment. It will be understood that the method  500  may be performed, e.g., using any of the devices, apparatuses, and systems described above. For example, the method  500  may be performed using a collapsible and portable dip apparatus including a first side structure comprising a first gripping bar supported by a first leg and a second leg, where the first leg and the second leg are adjustable along a z-axis to relocate the first gripping bar along the z-axis, and a first support bar connecting the first leg and the second leg, where the first support bar is disposed below the first gripping bar along the z-axis. The dip apparatus may further include a second side structure disposed opposite the first side structure and aligned substantially parallel to the first side structure when the dip apparatus is positioned for a dip exercise. The second side structure may include a second gripping bar disposed opposite the first gripping bar, where the second gripping bar is supported by a third leg and a fourth leg, and where the third leg and the fourth leg are adjustable along the z-axis to relocate the second gripping bar along the z-axis. The second support bar may connect the third leg and the fourth leg, where the second support bar disposed below the second gripping bar along the z-axis. The dip apparatus may further include a central support structure connecting the first side structure to the second side structure, where each of the first side structure and the second side structure are pivotable towards the central support structure thereby reducing a footprint of the dip apparatus when the dip apparatus is positioned for storage. 
     As shown in step  502 , the method  500  may include positioning the dip apparatus for a dip exercise. This may be accomplished by pivoting each of the first side structure and the second side structure of the dip apparatus away from the central support structure such that the first side structure and the second side structure are aligned substantially parallel to one another, and/or substantially perpendicular to the central support structure. Stated otherwise, this step  502  may include manipulating the dip apparatus from a position for storage (e.g., a collapsed position) to a position for exercise (e.g., an expanded or open position). And this may include moving one or more of the side structures from a position substantially aligned with a central support structure of the dip apparatus to a position where at least one end of the side structure(s) is disposed away from the central support structure. 
     It will be understood that positioning the dip apparatus for a dip exercise may also or instead include attaching or moving legs thereof, or otherwise unstowing components of the dip apparatus from a storage position to an exercise position, and/or adjusting the dip apparatus for a user. 
     As shown in step  504 , the method  500  may include locking a position of each of the first side structure and the second side structure. This may include locking a position of these structures overall—e.g., locking the first side structure and the second side structure in an expanded or open position, after moving from a stowed or closed position along the central support structure of the dip apparatus. In this manner, this may include the use of a hinge or joint that is similar to those found in folding tables and the like. This step  504  may also or instead include locking a position of a subcomponent of one or more of the first side structure and the second side structure, such as one or more legs thereof. This may include the use of a ball lock pin and the like. Therefore, locking a position of each of the first side structure and the second side structure may include locking a position along one or more of a first axis (e.g., a z-axis for height adjustments) and a second axis intersecting the first axis (e.g., one or more of an x- or y-axis for moving structures between a stowed position and an unstowed position). 
     As shown in step  506 , the method  500  may include engaging a resistance band to the first support bar and the second support bar of the dip apparatus, and/or to another portion(s) of the dip apparatus. Engaging a resistance band in this manner may include hooking ends of the resistance band, and/or other portions of the resistance band, around a circumference of a portion of the dip apparatus (e.g., the first support bar and the second support bar). To this end, the ends of the resistance band may include hook-shaped ends or the like, which may be structurally configured for engagement with the first support bar and the second support bar. Engaging a resistance band in this manner may also or instead include using a fastener such as one or more of a bolt, a clamp, a clip, a dowel, a gib, hook and loop, a nail, a nut, a pin, a screw, a slider, a snap, and so on. In some implementations, a resistance band is formed of a continuous loop, where, in such implementations, engaging a resistance band to the first support bar and the second support bar of the dip apparatus (and/or to another portion of the dip apparatus) may include removal and/or movement of a portion of these elements such that the resistance band can be slid thereupon or otherwise placed around these elements. And, in some implementations, a resistance band includes a buckle or the like (e.g., a clip) that can be selectively engageable to form a continuous loop. Thus, engaging a resistance band to the first support bar and the second support bar of the dip apparatus (and/or to another portion of the dip apparatus) may include clipping and/or buckling ends of the resistance band together after traversing the resistance band about these support bars or other structures. It will be understood that engaging a resistance band may include engaging a plurality of resistance bands, e.g., to adjust resistance thereof (and more particularly to adjust the assistance provided to a user when performing a dip exercise). When multiple resistance bands are placed for use on the dip apparatus, they may be placed on top of one another, side-by-side, spaced apart, and combinations thereof. 
     As shown in step  508 , the method  500  may include adjusting the dip apparatus—e.g., adjusting one or more of the first leg, the second leg, the third leg, and the fourth leg along the z-axis to relocate one or more of the first gripping bar and the second gripping bar along the z-axis. This step  508  may also or instead include other adjustments to accommodate a user&#39;s physical features (e.g., height, weight, etc.), a user&#39;s abilities, and so on. 
     As shown in step  510 , the method  500  may include locking the dip apparatus in a position—e.g., locking a position of one or more of the first leg, the second leg, the third leg, and the fourth leg along the z-axis. This may also or instead include locking a position of one or more resistance bands on the dip apparatus. 
     As shown in step  512 , the method  500  may include placing a body part on the resistance band. This may include a knee of a user (e.g., both knees of a user) or another portion of a user&#39;s legs and/or feet, a user&#39;s rear end (e.g., gluteus maximus), and/or another portion of a user&#39;s body. In an embodiment where the dip apparatus is used for an exercise other than dips, such as a push up, this may include placing a portion of a user&#39;s arms (e.g., their hands) on the resistance bands, or placing a portion of a user&#39;s legs (e.g., their feet) on the resistance bands but while the user is in a substantially prone position. Thus, in this manner and as described herein, it will be understood that the dip apparatus may be used for different exercises besides dips. 
     As shown in step  514 , the method  500  may include, while gripping at least a portion of each of the first gripping bar the second gripping bar, performing a dipping motion (e.g., downward) along the z-axis. When performing such a dip exercise, the resistance band may provide an upward force counteracting a weight of a user performing the dip exercise. Other exercises are also or instead possible as described herein. 
     As shown in step  516 , the method  500  may include positioning the dip apparatus for storage, e.g., by pivoting each of the first side structure and the second side structure toward the central support structure such that the first side structure and the second side structure are substantially aligned with the central support structure thereby reducing a footprint of the dip apparatus (or such that they are otherwise aligned to reduce a footprint of the dip apparatus for storage or the like). This may also or instead include stowing and/or disengaging one or more other components of the dip apparatus. For example, the legs (or more generally the side structures of the dip apparatus) may be moved such that the z-axis height of the dip apparatus is reduced for storage and the like. 
     As shown in step  518 , the method  500  may include locking a position of each of the first side structure and the second side structure, e.g., in a stowed position for storage of the dip apparatus. This step  518  may also or instead include locking and/or stowing other components of a dip apparatus. 
       FIG. 6  illustrates a front perspective view of an exercise system, in accordance with a representative embodiment;  FIG. 7  illustrates a top, rear perspective view of the exercise system;  FIG. 8  illustrates a front view of the exercise system;  FIG. 9  illustrates a rear view of the exercise system;  FIG. 10  illustrates a side view of the exercise system;  FIG. 11  illustrates a top view of the exercise system; and  FIG. 12  illustrates a bottom view of the exercise system. In general, the exercise system  600  shown in  FIGS. 6-12  may be similar to any of the other exercise systems shown or described herein, e.g., with reference to  FIGS. 1-5  above. Thus, the exercise system  600  shown in  FIGS. 6-12  may include any of the features described herein with respect to other exercise systems, and vice-versa. In general, the exercise system  600  shown in  FIGS. 6-12  may include a dip apparatus  601  and one or more resistance bands  650 . The exercise system  600  shown in  FIGS. 6-12  may further include one or more couplers  660  that are structurally configured for engaging a resistance band  650  to the dip apparatus  601 . It will be understood that a coupler  660  may also or instead be referred to herein as a “support bar coupler” or the like, because, in some aspects, the coupler  660  may be engaged with a support bar of a dip apparatus  601 , although engagement to other structures of the dip apparatus  601  is also or instead possible. 
     The dip apparatus  601  may include a first side structure  610 , a second side structure  620 , and a central support structure  630 . The first side structure  610  may include a first gripping bar  616  supported by a first leg  611  and a second leg  612 . The first side structure  610  may also include a first support bar  618  connecting the first leg  611  and the second leg  612 , where the first support bar  618  is disposed below the first gripping bar  616  along a z-axis  602 . The second side structure  620  may include a second gripping bar  626  disposed opposite the first gripping bar  616  and supported by a third leg  623  and a fourth leg  624 . The second side structure  620  may also include a second support bar  628  connecting the third leg  623  and the fourth leg  624 , where the second support bar  628  is disposed below the second gripping bar  626  along the z-axis  602 . It will be understood that one or more of the first gripping bar  616 , the second gripping bar  626 , the first support bar  618 , and the second support bar  628  may be adjustable along the z-axis  602 —e.g., for adjusting the height of portions of the dip apparatus  601 . For example, in an aspect, the first leg  611  and the second leg  612  are adjustable along the z-axis  602  to relocate the first gripping bar  616  along the z-axis  602 ; and, in this aspect, the third leg  623  and the fourth leg  624  are adjustable along the z-axis  602  to relocate the second gripping bar  626  along the z-axis  602 . 
     The central support structure  630  may be the same or similar to others as described herein. For example, the central support structure  630  may connect the first side structure  610  to the second side structure  620 , where one or more of these side structures may be movable relative to the central support structure  630 . In this manner, in some aspects, each of the first side structure  610  and the second side structure  620  are pivotable towards the central support structure  630  to reduce a footprint of the dip apparatus  601 . 
     A resistance band  650  included in the exercise system  600  may be the same or similar to any of the resistance bands described elsewhere herein. In general, a resistance band  650  included in the exercise system  600  may be engageable with an engagement portion of a coupler  660  as described herein. In some aspects, the resistance band  650  is configurable into a continuous loop. To this end, the resistance band  650  may be formed as a continuous loop of elastic material such as rubber and the like. In other aspects, ends of a resistance band  650  may be couplable to form the continuous loop. It will be understood that the exercise system  600  may include a plurality of resistance bands  650 , e.g., where at least two resistance bands  650  have a different modulus of elasticity, size, shape, color, material, combinations thereof, and the like. In this manner, resistance bands  650  may be altered (e.g., in type, number, size, modulus of elasticity, etc.) for a particular user of the exercise system  600 . 
     The couplers  660  included in the exercise system  600  may include at least a first coupler and a second coupler, e.g., to coincide with having couplers  660  that engage with at least a portion of each of the first side structure  610  and the second side structure  620 . The couplers  660  may be best understood with reference to  FIGS. 13-16 , and thus the description will now turn to these figures. 
       FIG. 13  is a close-up, top view of a coupler engaged with a resistance band in an exercise system, in accordance with a representative embodiment;  FIG. 14  is a close-up, side view of a coupler engaged with a resistance band in an exercise system, in accordance with a representative embodiment;  FIG. 15  shows a coupler aligned for engagement with a portion of a dip apparatus, in accordance with a representative embodiment; and  FIG. 16  shows a coupler engaged with a portion of a dip apparatus, in accordance with a representative embodiment. In general,  FIGS. 13-16  show a coupler  1360 , which may be one of a plurality of couplers (e.g., a first coupler and a second coupler) that is configured for engagement with each of a support bar  1318  and a resistance band  1350 . That is, the coupler  1360  may be an element in a dip apparatus or exercise system that enables releasable engagement of a resistance band  1350  with a dip apparatus or the like. The coupler  1360  shown in these figures and described below may be the same or similar to any of those described elsewhere herein, and may thus include features described with respect to others as described herein, and vice versa. In general, the coupler  1360  may include a first engagement portion  1370  and a second engagement portion  1380 . 
     The first engagement portion  1370  may be structurally configured for engagement with a support bar  1318 —e.g., one or more of a first support bar and a second support bar of a dip apparatus and/or exercise system. The first engagement portion  1370  may include a hook-shaped portion  1572  (best shown in  FIG. 15 ) sized and shaped to envelop at least a portion of a support bar  1318  and/or another portion of a dip apparatus. The hook-shaped portion  1572  may include one or more of a rounded cross-section (e.g., for a support bar  1318  having a substantially curved shape, such as one formed of substantially cylindrical tubing) or a polygonal cross-section (e.g., for a support bar  1318  lacking a substantially curved shape such as one formed of substantially square or rectangular tubing or the like). 
     In some aspects, and as best shown in  FIGS. 15 and 16 , a support bar  1318  (e.g., each of a first support bar and a second support bar of a dip apparatus and/or exercise system) may include one or more voids  1319 , and the first engagement portion  1370  of the coupler  1360  may include one or more projections  1574  sized and shaped to be received within one or more of these voids  1319 . It will be understood, however, that one or more projections  1574  may also or instead be included on a support bar  1318  with the coupler  1360  having one or more corresponding voids  1572 . Regardless, in certain aspects, each of (i) the first engagement portion  1370  of the coupler  1360  and (ii) the support bar  1318  may have mechanical/structural features that enable their engagement. 
     Thus, an embodiment disclosed herein may feature a void  1319  included on a support bar  1318  (e.g., each of a first support bar and a second support bar of a dip apparatus), a projection  1574  included on the first engagement portion  1370  of a coupler  1360  (e.g., each of a plurality of support bar couplers in an exercise system or dip apparatus), where the projection  1574  is sized and shaped to be received within the void  1319 , and a hook-shaped portion  1572  may be included on the first engagement portion  1370  of the coupler  1360  (e.g., each of a plurality of support bar couplers in an exercise system or dip apparatus), where the hook-shaped portion  1572  is sized and shaped to envelop at least a portion of the support bar  1318  (e.g., one or more of the first support bar and the second support bar) when the projection  1574  is positioned within the void  1319  to facilitate engagement between the coupler  1360  and the support bar  1318  of a dip apparatus. 
     The first engagement portion  1370  may be structurally configured to secure the coupler  1360  and a resistance band  1350  engaged therewith to a dip apparatus in a manner that facilitates a user performing a dip exercise using the dip apparatus with at least a portion of the user&#39;s weight being supported by one or more of the resistance band  1350 , the coupler  1360 , and the dip apparatus as a whole. Thus, the first engagement portion  1370  (and/or the coupler  1360  as a whole) may be structurally configured to be robust enough for such exercises as contemplated herein. Also or instead, the first engagement portion  1370  may be structurally configured to place the coupler  1360  (and thus a resistance band  1350  engaged therewith) in one or more predetermined positions relative to the dip apparatus or a portion thereof. Thus, the first engagement portion  1370  may be structurally configured to align the coupler  1360  (and thus a resistance band  1350  engaged therewith) in a predetermined manner, e.g., sufficient for performing a dip exercise. Features of the first engagement portion  1370  and/or the dip apparatus may also or instead permit adjustments for different users—e.g., multiple voids may be present on a support bar  1318  to adjust a lateral position of the coupler  1360  relative to the support bar  1318  by selecting a certain void of the multiple voids. Other similar configurations are also or instead possible that would permit adjustments of the position of a coupler  1360  along a support bar  1318  or another portion of a dip apparatus. 
     The second engagement portion  1380  may be structurally configured for engagement with a resistance band  1350 —e.g., releasable engagement such that the resistance band  1350  (and/or a plurality of such bands) can be removed and replaced relative to the coupler  1360 , dip apparatus, and/or exercise system. In this manner, one or more resistance bands  1350  may be engageable with the second engagement portion  1380  of one or more couplers  1360 . In some aspects, only a single resistance band  1350  is engageable with the second engagement portion  1380  at one time; in other aspects, multiple resistance bands  1350  are engageable with the second engagement portion  1380  at one time. 
     Turning back to  FIGS. 13 and 14 , the second engagement portion  1380  may include an arm  1382  structurally configured to receive a portion a resistance band  1350 —e.g., a portion of a continuous loop thereof—about a portion of the arm  1382 . That is, in some aspects, the resistance band  1350  is looped around the arm  1382  for engagement of the resistance band  1350  to the coupler  1360 . To this end, the arm  1382  may be cantilevered from a portion of the coupler  1360 . The arm  1382  may be aligned substantially parallel to the support bar  1318  when the first engagement portion  1370  is engaged with the support bar  1318 . In some aspects, the arm  1382  is movable relative to one or more of the other portions of the coupler  1360  and the dip apparatus. The arm  1382  may include a locking feature  1384  that secures a position of a resistance band  1350  relative to the arm  1382 , e.g., for securing the position of a resistance band  1350  on the arm  1382  while a user performs a dip exercise. The locking feature  1384  may include a projection or the like, which may be stationary or movable (e.g., movable between a locking position mitigating sliding of the resistance band  1350  off of the arm  1382  and a releasing position permitting sliding of the resistance band  1350  off of the arm  1382 ). 
     In some aspects, one or more couplers  1360  are removable and replaceable relative to a dip apparatus or portion thereof, e.g., the support bar  1318 . In other aspects, one or more couplers  1360  are permanently affixed to the dip apparatus or portion thereof, e.g., the support bar  1318 . Thus, in some aspects, a coupler  1360  is integral with a dip apparatus. Similarly, in some aspects, a resistance band  1350  may be permanently affixed to the coupler  1360 . 
       FIG. 17  is a flow chart of a method of performing a dip exercise, in accordance with a representative embodiment. The method  1700  may be performed using any one of the devices and systems described herein, and may include other techniques described herein to supplement and/or replace steps of the method  1700 . 
     As shown in step  1702 , the method  1700  may include engaging a support bar coupler to each of a first support bar and a second support bar of a dip apparatus. This may include, for example, coupling a first engagement portion of the support bar coupler to a support bar using any of the techniques as described herein. More specifically, engaging the support bar coupler may include placing a hook-shaped portion thereof about at least a portion of a support bar. This may also or instead include mating a projection included on a support bar with a void included on the support bar coupler, and/or mating a projection included on the support bar coupler with a void included on the support bar. In this manner, engaging a support bar coupler to a support bar may include mechanically keying these elements together in a predetermined manner. 
     As shown in step  1704 , the method  1700  may include engaging a resistance band to the first support bar and the second support bar of a dip apparatus. This may include engaging the resistance band directly to these support bars, and/or engaging the resistance band to an intermediate element such as a support bar coupler as described herein. That is, in certain aspects, the resistance band may be engageable to a portion of a support bar coupler included on each of the first support bar and a second support bar. To this end, the resistance band may be formed as a continuous loop, where engaging the resistance band to the first support bar and the second support bar may include looping the resistance band around an arm included on the support bar coupler included on each of the first support bar and a second support bar. 
     As shown in step  1706 , the method  1700  may include gripping a first gripping bar disposed above the first support bar relative to a z-axis, and gripping a second gripping bar disposed above the second support bar relative to the z-axis. 
     As shown in step  1708 , the method  1700  may include placing a body part (e.g., one or more knees of a user) on the resistance band. 
     As shown in step  1710 , the method  1700  may include, while gripping at least a portion of each of the first gripping bar and the second gripping bar, performing a dipping motion downward along the z-axis. As such, when the body part is engaged with the resistance band, the resistance band may provide an upward force counteracting at least a portion of a weight of a user performing the dip exercise, thus assisting a user in performing the dip exercise. 
     The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. 
     Unless the context clearly requires otherwise, throughout the description, the words “comprise,” “comprising,” “include,” “including,” and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in a sense of “including, but not limited to.” Additionally, the words “herein,” “hereunder,” “above,” “below,” and words of similar import refer to this application as a whole and not to any particular portions of this application. 
     It will be appreciated that the devices, systems, and methods described above are set forth by way of example and not of limitation. Absent an explicit indication to the contrary, the disclosed steps may be modified, supplemented, omitted, and/or re-ordered without departing from the scope of this disclosure. Numerous variations, additions, omissions, and other modifications will be apparent to one of ordinary skill in the art. In addition, the order or presentation of method steps in the description and drawings above is not intended to require this order of performing the recited steps unless a particular order is expressly required or otherwise clear from the context. 
     The method steps of the implementations described herein are intended to include any suitable method of causing such method steps to be performed, consistent with the patentability of the following claims, unless a different meaning is expressly provided or otherwise clear from the context. So, for example performing the step of X includes any suitable method for causing another party such as a remote user, a remote processing resource (e.g., a server or cloud computer) or a machine to perform the step of X. Similarly, performing steps X, Y, and Z may include any method of directing or controlling any combination of such other individuals or resources to perform steps X, Y, and Z to obtain the benefit of such steps. Thus, method steps of the implementations described herein are intended to include any suitable method of causing one or more other parties or entities to perform the steps, consistent with the patentability of the following claims, unless a different meaning is expressly provided or otherwise clear from the context. Such parties or entities need not be under the direction or control of any other party or entity, and need not be located within a particular jurisdiction. 
     It should further be appreciated that the methods above are provided by way of example. Absent an explicit indication to the contrary, the disclosed steps may be modified, supplemented, omitted, and/or re-ordered without departing from the scope of this disclosure. 
     It will be appreciated that the methods and systems described above are set forth by way of example and not of limitation. Numerous variations, additions, omissions, and other modifications will be apparent to one of ordinary skill in the art. In addition, the order or presentation of method steps in the description and drawings above is not intended to require this order of performing the recited steps unless a particular order is expressly required or otherwise clear from the context. Thus, while particular embodiments have been shown and described, it will be apparent to those skilled in the art that various changes and modifications in form and details may be made therein without departing from the spirit and scope of this disclosure and are intended to form a part of the invention as defined by the following claims, which are to be interpreted in the broadest sense allowable by law.