Abstract:
An exercise device includes a first strap portion having a first elongate portion and a second elongate portion joined together along a common longitudinal axis at varying points to define a first plurality of loops, a second strap portion having a third elongate portion and a fourth elongate portion joined together along a second common longitudinal axis at varying points to define a second plurality of loops, and an anchoring device. The first strap portion and the second strap portion are coupled to one another and the anchoring device is configured to hold or secure the coupled first and second strap portions such that the first plurality of loops and the second plurality of loops extend substantially symmetrically away from the anchoring device.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a Continuation-In-Part application of U.S. patent application Ser. No. 13/223,437, filed on Sep. 1, 2011, the disclosure of which is incorporated by reference in its entirety. 
    
    
     FIELD OF THE INVENTION 
     The present invention generally relates to an exercise device. More particularly, the present invention pertains to a multi-use elastic exercise device for use in suspension exercises, stretching and resistance training. 
     BACKGROUND OF THE INVENTION 
     Suspension exercise devices have long been incorporated into athletic training and therapeutic regimens as an avenue for fitness training, targeted muscle building and muscle therapy, and rehabilitation without the cost and space required with more bulky equipment. In particular, many types of devices and systems have been proposed that leverage gravity and a user&#39;s own bodyweight for stretching or performing a wide variety of exercises. Some of these systems rely on rigid straps anchored to a door or a ceiling hook, for example, wherein a user grasps handles provided at respective ends of the straps and leans their body at a chosen angle to do exercises. Changing the body angle relative to the floor or a wall, for example, changes the amount of a user&#39;s own bodyweight being held in suspension by the straps. Exercises may thus be made more or less demanding in accordance. Other systems rely on complex combinations of rigid and elastic components to provide varying degrees resistance and support during suspension training. However, all of these systems require constant reconfiguring, such as adding coupling components, adjusting or changing the position of straps and/or anchor points, and/or adding or changing the position of the handles, for example, to set up for exercise and/or for changing or easily establishing different points of leverage to change the difficulty of an exercise performed using the exercise device. 
     There is a need for a suspension exercise device configured for easy and efficient set up and use that does not require the need to reconfigure the device in order to change the difficulty of the device during use. 
     SUMMARY OF THE INVENTION 
     The foregoing needs are met, to a great extent, by the present invention, wherein in some embodiments an exercise device that is capable of overcoming the disadvantages described herein is provided. 
     According to certain aspects of the present disclosure, an exercise device includes a first strap portion having a first elongate portion and a second elongate portion joined together along a common longitudinal axis at varying points to define a first plurality of loops, a second strap portion having a third elongate portion and a fourth elongate portion joined together along a second common longitudinal axis at varying points to define a second plurality of loops, and an anchoring device. The first strap portion and the second strap portion may be coupled to one another, and the anchoring device may hold or secure the coupled first and second strap portions such that the first plurality of loops and the second plurality of loops extend substantially symmetrically away from the anchoring device. 
     According to yet other aspects of the present disclosure, a suspension exercise device includes a strap having a plurality of loops and an anchor device for securing the strap to a stationary support, wherein a load applied on one of the loops moves the loop away from the anchor device until a controlled deceleration actuated by the strap prevents further movement of the loop beyond an end point. 
     There has thus been outlined, rather broadly, certain embodiments of the invention in order that the detailed description herein may be better understood, and in order that the present contribution to the art may be better appreciated. There are, of course, additional embodiments of the invention that will be described below and which will form the subject matter of the claims appended hereto. 
     In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of embodiments in addition to those described and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein, as well as the abstract, are for the purpose of description and should not be regarded as limiting. 
     As such, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates a side view of a stretch strap, in accordance with aspects of the present disclosure; 
         FIG. 2  illustrates a top down view of a stretch strap, in accordance with aspects of the present disclosure; 
         FIG. 3  illustrates a top down view of a schematic diagram of a point of connection of the stretch strap, in accordance with aspects of the present disclosure; 
         FIG. 4  illustrates a diagram of a method of stretching, in accordance with aspects of the present disclosure; 
         FIG. 5  illustrates a front view of an exercise device, in accordance with aspects of the present disclosure; 
         FIG. 6  illustrates a side view of an exercise device, in accordance with aspects of the present disclosure; 
         FIG. 7  illustrates a side view of an exercise device in a state of use, in accordance with aspects of the present disclosure; 
         FIG. 8  illustrates another side view of an exercise device in a state of use, in accordance with aspects of the present disclosure; 
         FIG. 9  illustrates front view of an exercise device incorporating a pulley, in accordance with aspects of the present disclosure; 
         FIG. 10  illustrates various elastic band or tube features for use with an exercise device, in accordance with aspects of the present disclosure; and 
         FIG. 11  illustrates an elastic feature for use with an exercise device, in accordance with aspects of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The present invention provides in some embodiments, a device for strengthening and stretching muscles having a series of loops. The device can be formed from strips of elastic material periodically joined in order to form loops. More particularly, a top portion of elastic material can be laid on top of a bottom portion of elastic material. The top and bottom portions of materials can be joined in a variety of ways. A user of the device can engage different body parts with the loops and use the device to facilitate a dynamic stretch of a muscle or to leverage a user&#39;s own bodyweight for stretching or performing a wide variety of exercises. 
     For example, stretching may be a part of a well-rounded physical activity program, along with cardiovascular exercise and strength training. Both muscle fibers and the tissues surrounding those fibers (“fascia”) have viscoelastic properties. Stretching soft tissues increases the length of the muscle fibers and to some extent the fascia. A single stretching session can improve a person&#39;s short-term range of motion, but these results are short-lived. It has been found that repeated stretching sessions over time provide the best sustained elongation of soft tissue. Indeed, the American College for Sports Medicine (“ACSM”) suggests 2 to 4 sets of 15 to 30 seconds of stretching is necessary to improve flexibility in a muscle, at least 2 to 3 days per week. 
     Generally, there are 2 types of stretching exercises: static stretching and dynamic stretching. Static stretching involves the passive lengthening of the muscle, whereas dynamic stretching involves active contraction prior to the muscle being stretched. Dynamic stretching includes proprioceptive neuromuscular facilitation (“PNF”) or “contract-relax” stretching. PNF stretching can decrease the muscle&#39;s excitability by reducing reflexive activation, thus reducing its resistance to stretch and enhancing its length. 
     Additionally, a hybrid PNF-type stretch can be performed by varying the levels of contraction in which the muscle is first contracted and then passively stretched. These techniques are known as post isometric relaxation (“PIR”) or post facilitation stretch (“PFS”). More specifically, PIR can be used to reduce trigger point pain, while PFS can be used to alleviate chronic muscle tightness. PIR utilizes a very low, 20% to 25% maximal contraction at end-range before relaxation, while the PFS utilizes 100% maximal contraction performed at mid-range followed by a stretch at end-range. 
     Suspension exercising is an avenue for fitness training, targeted muscle building and muscle therapy, stretching, and rehabilitation. Suspension exercising uses devices and systems that leverage gravity and a user&#39;s own bodyweight for stretching or performing a wide variety of exercises. The leverage and support required to perform suspension exercises at varying degrees of difficulty, for example, is often determined by the angular relationships established between the suspension exercise device, the user, and the exercise device mount. The elasticity of the components used in a suspension exercise device must be controlled so a user can sufficiently establish the leverage and support required when using the device. Too much elasticity in an exercise device, for example, will not allow a user to establish the required angular relationships necessary to leverage in any controlled manner their own suspended weight. Inelastic exercise devices may create a harsh exercise experience for the user and/or limit the range of use of the device by limiting the assistance that may be provided to a user through elastic forces. 
     The invention will now be described with reference to the drawing figures, in which like reference numerals refer to like parts throughout.  FIG. 1  illustrates a side view of a stretch strap device  10  in accordance with an embodiment of the present invention. The stretch strap device  10  includes a base portion  12  and a top portion  14 . The base portion  12  can be formed from a length of material having a first end  16  and a second end  18 , and the top portion  14  can also be formed from a second length of material having a first end  20  and a second end  22 . Alternately, the base portion  12  and the top portion  14  can be formed by folding over a continuous length of a material used to form the base portion  12  and the top portion  14 . The stretch strap device  10  can be formed from a material such as polyester, propylene, nylon, or cotton that also incorporates an elastic component such as a natural or synthetic elastomer. In some embodiments, a nylon surrounding a latex cord for elasticity can be used. However, any suitable elastic material can be used to create the base portion  12  and the top portion  14  of the stretch strap device  10 . Preferably, the stretch strap device can have an elongation percentage limited to between approximately 40% and approximately 80%. Again, however, any elongation percentage that can be used to yield a dynamic stretch of a muscle can be used. 
       FIG. 1  also illustrates that the base portion  12  and the top portion  14  can be connected at points along their length, such that a loop  24  is formed between the base portion  12  and the top portion  14 . The loops can be connected in any suitable fashion such as sewing or heat bonding. As illustrated in the example device  10  in  FIG. 1 , there are six large loops  24  and two small loops  26  formed periodically along the length of the device  10 . Preferably, there are between approximately 5 to approximately 10 loops along the length of a stretch strap device, but any suitable number of loops can be used. Additionally, the loops can take any size suitable for facilitating a dynamic stretch. For example, the two small loops  26  illustrated in  FIG. 1 , can be used to engage a user&#39;s toe in order to facilitate a dynamic stretch of the foot and leg. Alternately, the stretch strap device  10 , need not contain any small loops. The toe loops  26  can be positioned near the middle of the stretch strap device  10 , as shown in  FIG. 1  or can be positioned anywhere along the length of the stretch strap device  10 , such that a foot and/or leg dynamic stretch can be facilitated. 
       FIG. 2  illustrates a top down view of the stretch strap device in accordance with an embodiment of the invention. As illustrated in  FIG. 2 , the stretch strap device  10  can include markers  28 . The stretch strap device can include markers  28  in the form of numbers labeling the loops  24  and  26  from one end  30  of the stretch strap device  10  to a second end of the stretch strap device  32 . As illustrated in  FIG. 2 , the markers  28  are positioned between the loops  24 ,  26  of the stretch strap device  10 . While  FIG. 2  illustrates the markers  28  taking the form of numbers, this is only one example of a way to mark the different regions of the stretch strap device  10 . The markers can also take the form of colors, letters, symbols, patterns, or any other appropriate marking. Additionally, while the markers  28  are shown between the loops  24  and  26 , in  FIG. 2 , the markers can be positioned in any place on the stretch strap device that facilitates the users dynamic stretch. 
       FIG. 3  illustrates a schematic diagram of a box stitch connection in accordance with an embodiment of this invention. As illustrated in  FIG. 3 , the base portion (not shown) and the top portion  14 , of the stretch strap device  10 , can be joined by sewing the two pieces of material together. In the example illustrated in  FIG. 3 , the base portion and the top portion  14  are connected using a simple box stitch connection. The connecting stitch is formed by stitching a box-shape  34  and stitching an x-shape  36  within the boundaries of the box-shape  34 . This stitch provides durability such that the stretch strap device  10 , can be used to facilitate a dynamic stretch. 
       FIG. 4  illustrates a method of performing a dynamic stretch using a stretch strap in accordance with an embodiment of the invention. The method can include step  100  which provides an elastic stretching device having elastic loops extending along a length of the device. The elastic stretching device can take the form of the example device described with respect to  FIGS. 1-3  or can take the form of any stretch strap device that can be used for a dynamic stretch. Step  110  can include engaging a portion of the body with one of the elastic loops of the elastic stretching device and step  120  can include contracting muscles in the engaged portion of the body. During the stretch the user can execute step  130  of holding a portion of the elastic stretching device. The method can also include step  140  of moving the engaged portion of the body in a direction to provide a stretch to a muscle. Additionally, the method can include step  150  of using the elastic stretching device to resist the stretch of the muscle in the engaged portion of the body. 
       FIG. 5  illustrates a side view of a suspension exercise device  200  in accordance with an embodiment of the present invention. The exercise device  200  may include a first elastic strap portion  202  coupled to a second elastic strap portion  204  to form a strap assembly  205  wherein the first elastic strap portion  202  and the second elastic strap portion  204  extend substantially symmetrically from an anchoring device  206 . The anchoring device  206  may be any suitable means for anchoring the exercise device  200  to a suitable support. For example, as shown in  FIG. 5 , the anchoring device  206  may include a support strap  208 , which may be formed from a nylon webbing material or other suitable material and coupled to a door anchor  210  toward a distal end. The support strap  208  may be a continuous loop having a section directly attached to the strap assembly  205  near a central portion  203 . In accordance with another aspect of the present disclosure, the support strap  208  may be configured to allow the coupled strap portions  202  and  204  to be freely supported through the loop in a manner to allow the coupled strap portions  202  and  204  to slide through a proximal portion of the support strap  208 . In accordance with yet other aspects of the present disclosure, the anchoring device  206  may include a carabineer and the support strap  208  coupled to the carabiner at a distal end, for example, for hooking onto a stable support hook in a wall or ceiling. Alternatively, the carabineer may be directly connected to one or both of the strap portions  202  and  204  to be configured as the anchoring device  206 . 
     Each of the elastic strap portions  202  and  204  may be similarly formed. As such, like reference numerals will be used to describe like components of the each of the strap portions. Each elastic strap portion  202  and  204  may include a base portion  220  and a top portion  230 . The base portion  220  can be formed from two lengths, joined in any suitable manner, for example, at the ends or at another point to form loops at one or more distal ends of the elastic strap portion. Alternately, the base portion  220  and the top portion  230  can be formed by folding over a continuous length of a material used to form the base portion  220  and the top portion  230 . In accordance with yet other aspects of the present disclosure, the two elastic strap portions  202  and  204 , rather than being separately formed components that are coupled, may be portions of an integrally formed strap having one base portion  220  and one top portion  230  joined at both ends or in any suitable manner to form a strap assembly  205  having the two elastic strap portions  202  and  204  described herein. In accordance with yet another aspect of the present disclosure, the integrally formed strap assembly  205  may include a base portion  220  and top portion  230  configured from one continuous length of material folded over, for example, to form loops  240  at both distal ends of the first elastic strap portion  202  and the second elastic strap portion  204 . 
     The top portion  230  and the base portion  220  of the elastic strap portions  202  and  204  may be formed from a material such as polyester, propylene fabric, nylon, or cotton that also incorporates an elastic component such as a natural or synthetic elastomer. In some embodiments, a nylon surrounding a latex cord for elasticity can be used to form elastic nylon webbing. Preferably, the material allows the exercise device to have an elongation percentage of between approximately 40% and approximately 80% along a longitudinal axis, although any suitable longitudinal elongation percentage may be provided. 
       FIG. 5  also illustrates that the base portion  220  and the top portion  230  can be connected at points along their length, such that a loop  240  is formed between the base portion  220  and the top portion  230 . The loops can be connected in any suitable fashion such as sewing or heat bonding. As illustrated in the example device  200  in  FIG. 5 , there may be a number of larger loops  240  and a number of smaller loops  242  formed periodically along the length of each of the elastic strap portions  202  and  204 . Preferably, there may be between approximately 5 to approximately 10 loops along the length of each strap portion  202  and  204 , but any suitable number of loops may be used. Additionally, the loops can take any size suitable for facilitating a dynamic stretch if used as a stretching device and/or for forming grasping/supporting loops/handles when used as a suspension device. For example, the smaller loops  242  illustrated in  FIG. 5 , may be used to engage a user&#39;s toe in order to facilitate a dynamic stretching or exercising of the foot and leg, for example. The smaller loops  242  may be positioned near the middle of one or both of the elastic strap portions  202  and  204 , as shown in  FIG. 5 , or can be positioned anywhere along the length of each of the elastic strap portions  202  and  204  to facilitate a particular positioning of a foot and/or leg, for example, to accommodate a dynamic stretch or a particular exercise when the device  200  is positioned on a door. Alternately, the exercise device  200  need not contain any small loops  242 . 
     The exercise device  200  provides an apparatus and method to facilitate performing a stretch where the muscle is actively contracted at different levels of activation and then passively stretched. For example, the exercise device  200  may be used independently of any anchor supports for stretching exercises using “contract-relax” methods described above that are made possible by the elastic nature of the device  200 . 
       FIG. 5  illustrates that the loops  240  or  242  may be formed to stand up or lie flat. For example, a portion of the top portion  230  forming a particular loop may be dimensioned to have a greater longitudinal length than the portion of the base portion  220  forming that particular loop. Accordingly, the top portion of a particular loop  240  or  242  may stand out from a section of the base portion forming the remainder of the loop  240  or  242 . Similarly, the loops  240  or  242  may be formed so that each section of the top portion and base portion forming a particular loop are approximately equal in length such that the loop  240  or  242  will lie flat when the exercise device  200  is in a general state of rest or, in particular, when the exercise device  200  is in a state of use, under tension, and the particular loop  240  or  242  is not being used as a loop or handle. 
       FIG. 6  illustrates a side view of the exercise device  200  in accordance with an embodiment of the invention. As illustrated in  FIG. 6 , each elastic strap portion  202  or  204  may include markers  260  in the form of numbers labeling the loops  240  and  242  at predetermined positions between one end  250  of one or both elastic strap portions to a second end  252  of one or both of the elastic strap portions. As illustrated in  FIG. 6 , the markers  260  may be positioned between the loops  240 ,  242  on each of the strap portions. While  FIG. 6  illustrates the markers  260  taking the form of numbers, this is only one example of a way to mark the different regions of the elastic strap portions. The markers may also take the form of colors, letters, symbols, patterns, or any other appropriate marking. Additionally, while the markers  260  are shown between the loops  240  and  242 , in  FIG. 6 , the markers may be positioned in any place on the elastic strap portions  202  and  204  that facilitates use of the exercise device  200 . 
       FIGS. 6 and 7  illustrate that the anchoring device  206  may be coupled to the elastic strap portions  202  and  204  toward the second end  252 . Thus, as shown in  FIG. 7 , with a door  300  slightly ajar, the door anchor  210  may be slid between the door  300  and a door jamb  310 , for example, along the upper lateral surface of the door, and the door  300  closed, so that the door anchor  210  may be secured in a holding position on one side of the door  300  with each of the elastic strap portions  202  and  204  hanging freely on the other side of the door. The support strap  208  may be conducted through the space between the door and the door jamb so that, in combination with the door anchor  210 , when the door is closed, the exercise device  200  is securely anchored in a position to enable a user to safely use the exercise device  200 . 
     The multiple loops  240  and  242  on each of the elastic strap portions  202  and  204  of the exercise device  200  may be used as handles for grasping the strap portions  202  and  204  at different locations. To illustrate the concept of using the exercise device  200 , a user doing an exercise is shown in  FIG. 8 . The user may grasp one loop  240  of each of the elastic strap portions  202  and  204  in each hand. The user may assume a position in which they are generally relying on the exercise device  200  to support their weight. The amount of weight suspended may depend on the angle the user assumes for a particular exercise. In this regard, the various loops  240  and  242  may serve as different progression points for a user to easily and effectively chart progress and/or easily and quickly provide varying degrees of difficulty for the same exercise. By staying at exactly the same spot to start an exercise, such as a predetermined distance from the door, the user may, for example, grasp different loops  240  or  242  to change the end angle at which the exercise will be completed. In so doing, the angle may be lessened or increased, for example, by respectively using loops that are closer or further from door when the exercise is being performed. The relative amount of overall stretch in the system changes depending on the loops  240  or  242  selected for use. Accordingly, different points of leverage may be established during a given exercise by simply using different loops  240  or  242  without the need to adjust straps and/or anchoring points, for example, as is typically required in conventional suspension systems. 
     Referring back to  FIG. 8 , the user may lean away from the door and/or let his/her arms straighten to begin the loading motion and force the device  200  to support a portion of the user&#39;s weight. The elastic nature of the strap portions  202  and  204  allow the exercise device to progressively stretch as the user suspends his/her weight until the device  200  reaches a hard stop, which may be dictated by the less elastic materials used to construct the nylon webbing. At this point, the user has determined an angle, for example by positioning their body a certain distance from the door and/or by selecting which loops  240  to grasp, that dictates how much of their weight will be effectively suspended by the exercise device  200  while performing a given exercise. From the fully-extended position in which the exercise device  200  is under maximum load, the user may then pull himself/herself towards the door with either arm or both arms together until reaching a point when most or all of the loading is released from the exercise device  200 . As the load is released, the elastic strap portions  202  and  204  retract from the stretched position back toward the original untensioned positions. The user may then lean back again and/or allow his/her arms to straighten, for example, to reload the exercise device  200  under their suspended weight and perform another repetition of the exercise. The number and variety of exercises that may be performed in this manner are greatly enhanced by the closed system of loops  240  and  242  that provide multiple built-in handles for grasping the elastic strap portions  202  and/or  204  at different locations. The loops may also be used to support a user&#39;s feet, arms, and portions of their legs. 
     For many users, bodyweight exercises can be extremely difficult to accomplish a full range of motion for some exercises. The elasticity of the exercise device  200  provides dual benefits during the full range of motion of a given exercise, namely during both the loading phase and the unloading phase. As a user allows their weight to load the elastic strap portions  202  and/or  204 , the elasticity of the device provides a deceleration effect as the user approaches the fully extended position and the material is stretched to its limit. The gradual deceleration that occurs provides for a soft landing as the user reaches the end limit or stop point of the loading motion. On the contrary, the hard-stop often experienced with conventional rigid strap suspension systems occurs without any gradual deceleration, wherein the full force of the suspended weight is felt all at once by the user at the end point of the loading motion, which may produce a jarring impact to muscles and joints. Furthermore, during the unloading motion, an acceleration effect is experienced by the user as the elastic strap portions  202  and  204  attempt to resume their natural, un-stretched positions. The elasticity of the exercise device  200  may thus provide an assisting force to the user&#39;s advantage during the unloading motion of an exercise. 
     In addition, conventional suspension exercise systems are limited to bodyweight exercises and require anchoring to an object, such as a door or ceiling, for example, to function properly. The exercise device  200  provides the added benefit that it may easily and efficiently be converted from use as a suspension device, i.e., a closed-chain bodyweight exercise, to function as a stretching or open-chain resistance exercise device. 
       FIG. 9  illustrates other aspects of an exercise device in accordance with the present disclosure. The anchoring device  206  may include a pulley assembly  270 . The pulley assembly  270  may be separately attached to the anchoring device  206  and or may be an integral component of the anchoring device  206 . As shown in  FIG. 9 , the strap assembly  205  may be configured to include an extended center area  272 , wherein the elastic strap portions  202  and  204  are not configured with loops  240  or  242  in that region. The extended center area  272  may be a single layer of material, such as a single layer of the base portion  220 , or a double layer, for example, wherein the top portion  230  and the base portion  220  are joined together to lie flat for the entire longitudinal length of the extended center area  272 . The extended center area  272  may thus be mounted onto the pulley wheel  274  to allow a user to perform rotational movements during use of the exercise device  200 . Each of the separate elastic strap portions  202  and  204  are then able to simultaneously move in opposing directions via rotation of the pulley wheel  274 . A locking mechanism on the pulley  270  and/or the anchoring device  206  may be provided to disengage or lock the pulley  270  from rotating. In accordance with yet another aspect of the present disclosure, the anchor device may include a separate mounting location, wherein the elastic strap portions  202  and  204  may be moved between mounting positions to engage or disengage a rotational capability. 
     As shown in  FIG. 10 , a fabric sock  280  may be sewn or otherwise coupled to the back side of the coupled elastic strap portions  202  and  204 , the back side being the side of the elastic strap portions  202  and  204  opposite from the loops  240 . An elastic resistance tube  282  may be run through the sock  280  with handles  284  or any other suitable grasping means attached at the ends. Thus, if the user chooses to use suspension as the exercise method, the users simply grabs the appropriate loops  240  and uses the exercise device  200  as discussed above. If, on the other hand, straight elastic resistance is desired, the user may instead grasp the handles  284  and use the exercise device  200  as one would a conventional resistance trainer, wherein the resistance tube  282  will stretch and relax within the sock  280 . 
     In accordance with other aspects of the present disclosure, as also shown in  FIG. 10 , one or more D-rings  290 , or any other suitable attachment device, may be sewn into or provided on one or more of the loops  240  or  242  serving as handles on the elastic strap portions  202  and  204 . Another D-ring, or any other suitable attachment device, may be added to the anchoring device  206 . An elastic resistance band  292 , or elastic tubing, for example, may then be removably attached between the loop  240  and the anchoring device  206  to provide additional assist during an exercise. Similarly, resistance bands and or tubing may be attached between various loops  240 , which, for example, may serve to assist a user in keeping or bringing their hands back together during a particular exercise. The added connection between loops  240  serving as handles may be particularly beneficial for a user engaged in exercises using the pulley  270  discussed above. 
     As shown in  FIG. 11 , in addition to elasticity being incorporated into the main strap assembly, i.e., the strap portions  202  and  204 , removable handle assemblies  320  may be coupled to one or both of the strap portions  202  and  204 . The handle assemblies  320  may be formed with elastic tubing or straps, for example, to provide a certain degree of elasticity and may be attached or coupled to the strap portions  202  and  204  at the ends of the strap portions  202  and  204  or at any other point along the longitudinal length of the strap portions  202  and  204 . For example, the handle assemblies  320  may attach to one or more loops  240  or  242  via D-rings  290 , as illustrated in  FIG. 10 , or by any other suitable coupling or attachment means. In accordance with aspects of the present disclosure, progressive levels of assistance may be provided to a user performing suspension exercises by switching between handle assemblies  320  having different levels of elastic resistance. 
     The many features and advantages of the invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention which fall within the true spirit and scope of the invention. Further, because numerous modifications and variations will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to falling within the scope of the invention.