Patent Publication Number: US-11660488-B2

Title: Spring exercise system and method of exercising

Description:
CROSS REFERENCE OF RELATED APPLICATIONS 
     This application claims the benefits of U.S. provisional application No. 62/976,180, filed Feb. 13, 2020 and entitled SPRING EXERCISE APPARATUS AND TECHNIQUES FOR USING SAME, which provisional application is incorporated by reference herein in its entirety. 
     FIELD OF THE INVENTION 
     The present invention relates generally to a spring exercise apparatus and method that can be applied across multiple exercise systems including but not limited to Pilates, yoga, ballet, barre, and multiple exercise and Pilates apparatus. Moreover, the present invention relates to a spring exercise apparatus and method that can be applied across multiple exercise systems including but not limited to Pilates, yoga, ballet, barre, in the water and multiple exercise and Pilates apparatus. It is a low-impact system of exercise that utilizes a non-fixed spring, or springs with multiple resistance levels that extends, and is stretchable between multiple types of interchangeable grasp handles that are graspable and loops that can encircle or wrap around with different combinations of the arms, legs, hands and feet. Whereby the spring generates an extension of resistance that strengthens all muscle groups, enhances flexibility, stabilizes and strengthens the joints, while enhancing mobility and range of motion, emphasizing proper postural alignment, core strength, and muscle balance. The spring exercise system can be used for any low-impact exercise system including but not limited to those referenced above. 
     BACKGROUND OF THE INVENTION 
     The following background information may present examples of specific aspects of the prior art (e.g., without limitation, approaches, facts, or common wisdom) that, while expected to be helpful to further educate the reader as to additional aspects of the prior art, is not to be construed as limiting the present invention, or any embodiments thereof, to anything stated or implied therein or inferred thereupon. 
     Typically, Pilates is a method of exercise that consists of low-impact flexibility and muscular strength and endurance movements. Pilates emphasizes proper postural alignment, core strength and muscle balance. Pilates is named for its creator, Joseph Pilates, who developed the exercises and apparatus in the late 19 th  and early 20 th  centuries. A Pilates routine generally includes exercises and apparatus that promote core strength and stability, muscle control, and endurance, including exercises that stress proper posture and movement patterns and balanced flexibility and strength. It can also be helpful in training for sports or in physical rehabilitation. 
     Generally, exercise equipment is used for fitness and medical reasons to burn off undesired calories, to improve cardiovascular ability, to tone or strengthen muscles, or to improve flexibility, balance, posture, etc. No matter what the desired end goal of a user of exercise equipment may be, almost all types of exercise equipment aid the user to achieve his or her desired goal by exerting some form of adequate and effective resistance against repeated bodily movements of the user. Often, the exercise devices utilize elastic resistance members such as coil springs. A hook is often used to connect each of the two ends of the coil spring (or generally a force resisting mechanism) between a movable and a fixed location on the exercise equipment. 
     This is to say that none of the above have incorporated a spring loaded device such as what we are presenting here that can be implemented Hand-to-Hand, Foot-to-Foot, Hand-to-Foot or limb-to limb and as we have explored the applications of this device, now referred to as CoreSpring™, we have discovered that it answers a deep need in the Pilates, fitness and even the rehabilitative communities for spring resistance that is not dependent on and/or limited to or attached to a large, cumbersome apparatus or fixed to a wall, platform or structure of any kind. 
     It is known in the art that the creation of CoreSpring™ was born out of a need for the use of spring resistance in areas and environments that were not conducive to attaching springs to a fixed structure or apparatus and when the use of the spring was placed in the hands, feet or any combination of the hands and feet with handles, loops or straps made of cloth, leather, fleece or neoprene the immediate activation of crucial, deep, musculoskelatal, postural muscles were identified and enhanced. 
     This application of the non-fixed or independent spring created a markedly different effect from other so-called props that are employed in Pilates exercises, both on the mat/floor or on the apparatus. Unlike the rubber bands, tubes or balls, hand or ankle weights, or even other Pilates devices such as the Magic Circle™ that employs a spring-like experience with the use of steel bands with pads that enable it to be held by hands, feet or legs, this independent spring is a completely new experience of spring resistance and not just a prop. 
     Other proposals have involved Pilates exercise techniques and equipment. The problem with these exercises is that the springs are fixed to a machine, they are not independently held by the hands and feet of the user. Also, only one type of grasp handle is used. Even though the above cited Pilates exercise techniques and equipment meets some of the needs of the market, a Spring exercise system and method of exercising that provides a low-impact system of exercise that utilizes a non-fixed spring that extends, and is stretchable between two interchangeable grasp handles or loops that are graspable with different combinations of the hands and feet, arms and legs so as to generate an extension of resistance that strengthens the smaller, deep stabilizing and long muscles, enhances flexibility, stabilizes and strengthens the joints, while enhancing mobility and range of motion, and emphasizes proper postural alignment, core strength, and muscle balance is still desired. 
     SUMMARY 
     Illustrative embodiments of the disclosure are generally directed to a spring exercise system and method of exercising which allows a user to perform a low-impact system of exercise that utilizes a non-fixed spring with multiple resistance levels that extends, and is stretchable between multiple interchangeable grasp handles and loops that are graspable with different combinations of the hands, feet, arms, ankles and legs; whereby the spring generates an extension of resistance that strengthens the small and long muscles, enhances flexibility, and emphasizes proper postural alignment, core strength, and muscle balance. 
     The system utilizes a non-fixed extension spring that stretches when a pulling or pressing force is applied, generating varying levels of resistance, and thereby developing the long muscles, core, and back of the body. The extension spring is stretchable between multiple types of interchangeable grasp handles and loops. The grasp handles may include any combination of a resilient loop handle with double D rings, a single rigid handle, and a resilient double loop handle. The spring may have a swiveling link or other mechanism joining the free ends of the spring to the grasp handles that allows a 360° rotation and facilitating and enabling that the body has a 3-dimensional experience of spring resistance. The grasp handles are able to be grasped with different combinations of the hands and feet, so as to generate an extension of resistance that strengthens the long muscles, enhances flexibility, and emphasizes proper postural alignment, core strength, and muscle balance. In this manner, different styles of exercise are possible, including but not limited to Pilates exercise. 
     In one non-limiting embodiment, a spring exercise system, comprises a spring defined by a pair of free ends, the spring operable to generate resistance to a pulling or pressing force when stretched. 
     The system also includes a pair of grasp handles or loops attached to the free ends of the spring, the grasp handles being operable to enable grasping to the hands, the feet, or both, or wrapping the arms, ankles or legs. 
     The system also may or may not include a swiveling connector joining the free ends of the spring to the grasp loops/handles. The presence or absence of the swiveling connector does not interfere with the grasp handles&#39; ability to rotate up to 360 degrees; whereby the resistance generated by the spring generates an extension of resistance. 
     In another aspect, the spring comprises an extension spring. 
     In another aspect, the extension spring comprises an elongated coil spring. 
     In another aspect, the spring comprises a non-fixed spring. 
     In another aspect, the extension spring is defined by a soft resistance. 
     In another aspect, the extension spring is defined by a medium resistance. 
     In another aspect, the extension spring is defined by a hard resistance. 
     In another aspect, the spring comprises a metal material or plastic or galvanized plastic. 
     In another aspect, the grasp handles comprise resilient loop handle. 
     In another aspect, the grasp handles comprise a single rigid handle. 
     In another aspect, the grasp handles comprise and a resilient double loop handle. 
     In another aspect, the grasp handles include at least one of the following materials: leather, fleece, neoprene, and cloth. 
     In another aspect, the swiveling connector comprises a chain link. 
     In another aspect, the swiveling connector comprises a metal chain link. 
     In another aspect, the mechanism joining the free ends of the spring to the grasp handles that allows a 360° movement may not swivel. 
     In another aspect, the grasp handles are grasped by the hands. 
     In another aspect, the single resilient loop has double D rings to allow for quick and easy length adjustments. 
     In another aspect, one grasp handle is grasped by the hand, wrist or arms, and another grasp handle is engaged by the foot, ankle or leg. 
     In another aspect, the system is operable to perform resistance exercises. 
     One objective of the present invention is to generate an extension of resistance that strengthens the smaller, deep stabilizing and long muscles, enhances flexibility, stabilizes and strengthens the joints, and emphasizes proper postural alignment, core strength, and muscle balance. 
     Another objective is to leverage the effects of a non-fixed spring to a Pilates exercise. 
     Yet another objective is to enable multiple grasp handles to be interchanged on the ends of the spring. 
     Another objective is to strengthen the long muscles and increase flexibility. 
     Yet another objective is to provide an exercise system that is operable to perform Pilates and resistance exercises, and across multiple Pilates apparatus and mat repertoire. 
     Additional objectives are to provide an exercise system that is usable with the feet and hands in different exercising positions. 
     Yet another objective is to provide a hands-free, upper-body exercise apparatus that is durable in construction, carefree of maintenance, easily assembled, and simple and effective to use by using lower, upper arms instead of legs. 
     An exemplary objective is to provide an inexpensive to manufacture Spring exercise system that is ideal for home and travel use. 
     Other systems, devices, methods, features, and advantages will be or become apparent to one with skill in the art upon examination of the following drawings and detailed description. It is intended that all such additional systems, methods, features, and advantages be included within this description, be within the scope of the present disclosure, and be protected by the accompanying claims and drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will now be described, by way of example, with reference to the accompanying drawings, in which: 
         FIG.  1    illustrates a perspective view of an exemplary Spring exercise system, showing a resilient loop handle, in accordance with an embodiment of the present invention; 
         FIG.  2    illustrates a perspective view of the Spring exercise system, showing a single rigid handle, in accordance with an embodiment of the present invention; 
         FIG.  3    illustrates a perspective view of the Spring exercise system, showing a resilient double loop handle, in accordance with an embodiment of the present invention; 
         FIGS.  4 A- 4 B  illustrate perspective views of a user exercising with the system, showing the fundamental es Stretch position, where the hands are grasping a first resilient loop handle, and the feet passing through and butting against a second resilient loop handle, while the user extends the arms and legs to generate an extension of resistance, in accordance with an embodiment of the present invention; 
         FIGS.  5 A- 5 B  illustrate perspective views of a user exercising with the system, showing the user standing in the es Salutation position to stretch the spring laterally, and bending at the waist in the Yoga Triangle Prep position while stretching the spring, in accordance with an embodiment of the present invention; 
         FIGS.  6 A- 6 B  illustrate perspective views of a user exercising with the system, showing the user on an exercise mat in the Pilates Mat Star Position with one hand and one foot on the mat and the opposing hand and foot projecting upwardly while stretching the spring with the arms, and the Star Twist position with the user facing the mat and having two feet and one hand on the mat while stretching the spring with the arms, in accordance with an embodiment of the present invention; 
         FIGS.  7 A- 7 B  illustrate perspective views of a user exercising with the system, showing the user on an exercise mat in the Yoga Seated twist position, and the yoga pigeon position, in accordance with an embodiment of the present invention; 
         FIGS.  8 A- 8 B  illustrate perspective views of a user exercising with the system, showing the user in the Foam Roller Flexion position, and the Foam Roller Extension position, in accordance with an embodiment of the present invention; 
         FIG.  9    illustrates a perspective view of a user exercising with the system, showing the user on an exercise mat in the Pilates—Leg Pull Front position, in accordance with an embodiment of the present invention; 
         FIGS.  10 A- 10 B  illustrate perspective views of a user exercising with the system, showing the user on a foam version in the Pilates—Spine Corrector apparatus, in accordance with an embodiment of the present invention; 
         FIG.  11    illustrates a perspective view of a user exercising with the system, showing the user on a wheeled device, the Pilates, Pilates Wheeled Exercise Device™ position, in accordance with an embodiment of the present invention; 
         FIGS.  12 A- 12 C  illustrate perspective views of a user exercising with the system, with  FIG.  12 A  showing the Pilates Reformer Footwork—Basic Length—Slack position,  FIG.  12 B  showing the Pilates Reformer Footwork—Basic Length—Stretch position, and  FIG.  12 C  showing the Pilates Reformer Footwork—Basic Lateral—Stretch position, in accordance with an embodiment of the present invention; 
         FIGS.  13 A- 13 B  illustrate perspective views of a user exercising with the system, showing the user on the Pilates Reformer—Standing Splits—demonstrating the double apparatus (also called dual system, two tier system, or dualistic system) quality, in accordance with an embodiment of the present invention; 
         FIGS.  14 A- 14 B  illustrate perspective views of a user exercising with the system, showing the user on a trap table on the Pilates Trap Table—Push Through Plus Rotation exercise, in accordance with an embodiment of the present invention; 
         FIG.  15    illustrates a perspective view of a user exercising with the system, showing the user on a trap table on the Pilates Trapeze Table—Advanced Skydiver exercise with physio-ball, in accordance with an embodiment of the present invention; 
         FIGS.  16 A- 16 B  illustrate perspective views of a user exercising with the system, showing the user on the Pilates Wunda Chair™ seated position and the Pilates Wunda Chair™ step-up exercise, in accordance with an embodiment of the present invention; 
         FIGS.  17 A- 17 B  illustrate perspective views of a user exercising with the system, showing the user on a track on the CoreAlign™ apparatus—Yoga Warrior Hand-to-Hand position, and the Warrior with Rotation Hand-to-Foot position, in accordance with an embodiment of the present invention; 
         FIGS.  18 A- 18 B  illustrate perspective views of a user exercising with the system, showing the user on the Pilates/Swedish Ladder Hanging Leg Raise exercise, and/or the Pilates Ladder Handstand exercise, in accordance with an embodiment of the present invention; 
         FIG.  19    illustrates a perspective view of a user exercising with the system, showing the user in the Standing Yoga Reverse Triangle position, in accordance with an embodiment of the present invention; 
         FIG.  20    illustrates a perspective view of a user exercising with the system, showing the user in the Standing Balance exercise on an engineered foam prop, in accordance with an embodiment of the present invention; 
         FIG.  21    illustrates a perspective view of a user exercising with the system, showing the user performing a Ballet exercise at a ballet barre, in accordance with an embodiment of the present invention; 
         FIGS.  22 A- 22 B  illustrate perspective views of a user exercising with the system, showing the user standing on Foot Stretching Domes in the Eagle/Forward Fold position, and the Eagle/Forward Fold with Rotation position, in accordance with an embodiment of the present invention; 
         FIG.  23    illustrates a perspective view of a user exercising with the system, showing the user in seated forward fold/Eagle with an exercise ball at the top of the back, the leg/hamstring, in accordance with an embodiment of the present invention; 
         FIG.  24    illustrates a perspective view of a user exercising with the system, showing the user stretching the arms and performing abdominal exercises while lying on a Physio Ball, in accordance with an embodiment of the present invention; 
         FIGS.  25 A- 25 B  illustrate perspective views of a user exercising with the system, showing the user lying prone across a Physio ball while stretching in pointer position, in accordance with an embodiment of the present invention; 
         FIG.  26    illustrates a perspective view of a user exercising with the system, showing the user in a mat standing exercise in a Resistance Training Squat position, in accordance with an embodiment of the present invention; 
         FIG.  27    illustrates a perspective view of a user exercising with the system, showing the user in a standing TRX Suspension position, in accordance with an embodiment of the present invention; 
         FIG.  28    illustrates a perspective view of a user exercising with the system, showing the user on a stationary recumbent exercise bicycle in a Salutation position, in accordance with an embodiment of the present invention; 
         FIG.  29    illustrates a perspective view of a user exercising with the system, showing the user on a trampoline in a Stretch/Jump position, in accordance with an embodiment of the present invention; 
         FIG.  30    illustrates a perspective view of a user exercising with the system, showing two users in a Standing Tandem position, in accordance with an embodiment of the present invention; 
         FIG.  31    illustrates a perspective view of a elderly user exercising with the system, showing the user in a cross chest Stretch position, in accordance with an embodiment of the present invention; 
         FIG.  32    illustrates a perspective view of a young/child user exercising with the system, showing the user in a hand-foot lateral Stretch position, in accordance with an embodiment of the present invention; 
         FIG.  33    illustrates a perspective view of a patient exercising with the system, showing the user in a Patient Tandem hand-to-hand position with practitioner for therapeutic exercise in hospital or other settings, in accordance with an embodiment of the present invention; 
         FIG.  34    illustrates a flowchart of an exemplary method of exercise with a Spring exercise system, in accordance with an embodiment of the present invention; and 
         FIGS.  35  &amp;  36    respectively illustrate a perspective view of a user exercising with the system in the pool, showing the user in a standing Stretch position  1  &amp;  2  both with a free hand and a hand on pool edge to form variations of standing balance, in accordance with an embodiment and example of the versatility of the present invention; 
         FIG.  37    illustrates a perspective view of a patient exercising with the system for stretching legs and arms, while the system having two springs with three loops, in accordance with an embodiment and example of the versatility of the present invention; 
         FIGS.  38  &amp;  39    respectively illustrate a perspective view of a user exercising with the system in a different stretch position, while the system having two springs with four loops, in accordance with an embodiment and example of the versatility of the present invention; 
         FIGS.  40  &amp;  41    respectively illustrate a perspective view of another embodiment of Spring exercise system, showing employing two springs with four loops, in accordance with an embodiment of the present invention, in accordance with an embodiment and example of the versatility of the present invention. 
     
    
    
     Like reference numerals refer to like parts throughout the various views of the drawings. 
     DETAILED DESCRIPTION OF THE INVENTION 
     The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. As used herein, the word “exemplary” or “illustrative” means “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” or “illustrative” is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. For purposes of description herein, the terms “upper,” “lower,” “left,” “rear,” “right,” “front,” “vertical,” “horizontal,” and derivatives thereof shall relate to the invention as oriented in  FIG.  1   . Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification, are simply exemplary embodiments of the inventive concepts defined in the appended claims. Specific dimensions and other physical characteristics relating to the embodiments disclosed herein are therefore not to be considered as limiting, unless the claims expressly state otherwise. 
     A spring exercise system  100  and method  3400  of exercising is referenced in  FIGS.  1 - 34   . The spring exercise system  100  comprises a spring  102  having one or more resistances efficacious for effective low-impact training, which can include, but is not limited to, Pilates exercises. The exercise system  100  provides a user with the capacity to change grasp handles types, and levels of spring resistance, so as to customize a unique exercise routine, which can be Pilates-style. Though, other types of exercise routines known to be low-impact and work the long muscles may also be used, such as yoga, Barre, ballet center work, as well as Pilates and other apparatus. 
     The spring  102 , which serves as the primary resistance mechanism, is independent, and thereby not attached to exercise machinery or other stationary fixture. The grasp handles  108   a - b ,  202   a - b ,  302   a - b  on the ends of the spring  102  are interchangeable, so as to accommodate different styles of exercise, and comfort levels for the user. The grasp handles also accommodate the hands, feet, ankles, legs, wrists, arms, fingers, and stationary objects, so as to enable myriad permutations of exercise techniques, exercises and positions. A swiveling connector may or may not attach the free ends of the spring to the grasp handles. The connector mechanism enables the grasp handles/loops to rotate up to 360°, which further increases the types and difficulty levels of exercises and range of motion that can be accomplished. 
     As referenced in  FIG.  1   , the spring  102  comprises an extension spring. The extension spring is configured to absorb and store energy, as well as create resistance with a pulling or pressing force. The spring  102  is also unique in being a non-fixed spring  102 . This means that the spring is not anchored to exercise equipment or otherwise. The spring  102  is free to move to any point that the user desires. In one embodiment, multiple users can use a single spring, or multiple springs in tandem to exercise. In yet another embodiment a single user may use multiple springs with multiple loops or handles. In one non-limiting embodiment, the spring  102  comprises a metal material. The material of the spring may be, in one instance, a nickel-plated metal alloy, such as hard carbon or stainless steel. In one non-limiting embodiment, the spring  102  comprises a plastic or engineered plastic material. 
     In some embodiments, the spring  102  includes a central coiled body, and a pair of opposing free ends  104   a ,  104   b . The free ends  104   a - b  may terminate at a hook or a loop. The spring  102  has a central body section that is coiled to produce resistance when stretched, or pulled or pressed during exercise. The tightness of the coil and the material of the spring are determinative of the resistance provided by the spring  102 . Thus, the spring  102  generates resistance to a pulling or pressing force when stretched. The resistance generated by the spring  102  generates an extension of resistance. Different levels of resistance in the spring may be used, depending on the requirements of the user. 
     For example, in one embodiment, the spring  102  is configured with a hard resistance level. In another embodiment, the spring  102  is configured with a medium resistance. In yet another embodiment, the spring  102  is configured with a soft resistance. Each resistance level supports a load while being stretched. Variation of resistance can also be achieved by adjusting the loop or grasp handle from shorter to longer, for example. 
     It is significant to note that the fixed spring defines, and is the common denominator, of Pilates apparatus—not the shape or form of the exercise machine. This is because such a spring-based concept has been employed with the Pilates method-based innovations and machines. In the prior art, whether one is lying down, sitting, kneeling, or standing the spring is fixed and applied directly (i.e. the trapeze table, et al) or indirectly (i.e. the Reformer). However, the present invention employs the spring  102  independently held or maneuvered by the extremities (hands and feet) that works the whole body for activating and orchestrating the core, torso, joint muscles, etc. 
     Those skilled in the art will recognize that the exercise motions of most upper-body exercises while isolating the hands, wrist, forearm, bicep and triceps allowing isolation of primary muscle groups of the chest, back and shoulders. Furthermore, the system provides comparable exercise benefit requiring approximately half of the weight or resistance the user would normally use in a given exercise. This in turn decreases the pressure and torque on joints, tendons and ligaments and reduces the risk of injury. 
     Looking now at  FIGS.  1 - 3   , the system  100  includes a pair of grasp handles that attach to the free ends  104   a ,  104   b  of the spring  102 . The grasp handle provides the structural means for the user to secure the spring from its ends, and stretch the spring  102 , so as to achieve a 3-dimensional experience and the extension spring (See  FIGS.  4 - 33   ). The grasp handles are configured to enable the hands, wrists, arms, the feet, and/or ankles. The grasp handles allow the spring  102  to be independently held by the extremities (hands and feet) that works the whole body. Suitable materials for the grasp handles may include, without limitation, leather, fleece, neoprene, and cloth. 
     As illustrated in the various exercise permutations possible with the system shown in  FIGS.  4 - 33   , the grasp handles are grasped or encircled by the hands and the feet to enable extension and retraction of the arms and legs for exercise of the intrinsic core stabilizers and long muscles. The grasp handles are interchangeable, and include three different and unique styles for optimal function during movement and exercises. Each grasp handle  108   a - b ,  202   a - b ,  302   a - b  supports a different exercise system  100 ,  200 ,  300 , respectively. And two different handles or loops can be used on each end  104   a - b  of the spring  102 , in any combination of handles or loops. This helps achieve the objective of interchanging multiple, different handles or loops  108   a - b ,  202   a - b ,  302   a - b  on the ends of the spring  102 . 
     In one possible embodiment of the exercise system  100   FIG.  1    shows the handles  108   a ,  108   b  are resilient loop handles that forms a loop through which the fingers of the hand or the foot can pass through. The resilient loop handle may simply be a loop of a resilient neoprene, cloth or leather that is versatile enough to be used by the hand or arm, or allow the foot or leg to pass through. Thus, as illustrated in  FIGS.  4 A- 4 B , the user inserts both hands and arms to pass through the grasp handles/loops  108   a - b  while performing a Fundamental Stretch position  400 , where the hands are moving a first resilient loop handle  108   a , and one is passing through a second resilient loop handle  108   b . This allows the user to extend the arms and legs to generate an extension of resistance through the zone from the extremities. Furthermore, in the Fundamental Stretch position  400 , the user can lie supine, and extend and retract the spring  102 . 
     However, as  FIG.  5 A  references, the user can also stand straight up in a fundamental Salutation position  500   a  to stretch the spring laterally while grasping the loops  108   a - b . This allows the user to stretch the spring  102  and generate resistance in the spring  102 . And as shown in  FIG.  5 B , the user can also bend at the waist in the Yoga Triangle Prep position  500   b  while stretching the spring  102  with the arms. These unique stretching positions  500   a - b  create a Novel exercise routine that allows the user to have a secure grasp while stretching the spring  102  to the desired length to generate the optimal extension of resistance. In each position  500   a ,  500   b , the upper body core, shoulder girdle and the long muscles of the arm are being worked. 
     In another embodiment, an exercise system  200  utilizes a pair of loops  202   a ,  202   b . The resilient loop, rotatably attaches to each end  104   a ,  104   b  of the spring  102  (See  FIG.  2   ). The single loop includes a grasp bar  204 , which can be grasped by the user, and is connected to the free ends of the spring  102  through a pair of resilient straps  206   a ,  206   b.    
       FIGS.  6 A and  6 B  illustrate use of the loops  202   a - b  where the user works on an exercise mat in a Pilates Star Position  600   a  with one hand and one foot on the mat and the opposing hand and foot projecting upwardly while stretching the spring with the arms.  FIG.  6 B  reference a Star Twist position  600   b  in which the user is in a pike position with both feet and one hand flat on the mat, and stretching the spring with the arms, shoulder and legs. 
     In another embodiment of the exercise system  300 , the loop  302   a ,  302   b  is a resilient double loop handle, which enables the user to securely utilize each end  104   a ,  104   b  of the spring  102  (See  FIG.  3   ). The resilient double loop handle comprises an inner loop  304   a  and an outer loop  304   b . The inner loop  304   a  is operable to enable grasping by the hand. The outer loop  304   b  can be wrapped around the wrist, foot or leg. In some embodiments, the outer loop  304   b  of the resilient double loop handle  302   a - b  has a greater resilience than the inner loop. 
     Looking ahead to  FIGS.  12 A- 12 C , the resilient double loop handle is grasped by the user while lying on Pilates Reformer.  FIG.  12 A  references a Pilates Reformer Footwork—Basic Length—Slack position  1200   a  with the user passing the hands, palms through the outer loop  304   b , and the thumbs through the inner loop  304   a . The user&#39;s arms and legs are retracted and relaxed in this position  1200   a . Continuing,  FIG.  12 B  illustrates a Pilates Reformer Footwork—Basic Length—Stretch position  1200   b  with the user extending the arms and legs to create tension on the spring  102 . And  FIG.  12 C  shows a Pilates Reformer Footwork—Basic Lateral—Stretch position  1200   c  with the user laterally extending the right leg to create tension thereon. The double loops  302   a - b  in this configuration allows the hands and the foot to pass through the inner loops for more effective control of the spring  102 . 
     In some embodiments, the system  100  may include a pair of swiveling connectors  106   a ,  106   b  that are disposed at each of the free ends  104   a ,  104   b  of the spring  102 . The swiveling connectors  106   a - b  are configured to connect to the grasp handles/loops  108   a - b ,  202   a - b ,  302   a - b  to the free ends  104   a - b  of the spring  102 . This may utilize a swiveling linkage, as is known in the art. The swiveling connectors  106   a - b  provide a unique  nexus  that allows the grasp handles/loops  108   a - b ,  202   a - b ,  302   a - b  to rotate up to 360°, relative to the spring  102 . This rotation by the grasp handles allows for greater range of motion at the wrist and ankles while stretching the spring. This serves to enhance the exercise routine. 
     For example,  FIG.  6 A  shows the arm extends laterally to stretch the long muscles. And  FIG.  6 B  shows the left wrist contorted at an angle, but still grasping the grasp handle  202   b , which can rotate to accommodate the wrist and ankle motions. It is significant to note that the illustrated exercises reference the versatility of the exercise system, but represent only a limited number of exercises that are possible by grasping the grasp handles and stretching the spring. 
       FIG.  34    illustrates a flowchart diagram of an exemplary method  3400  for exercising with the Spring exercise system. The method  3400  may include an initial Step  3402  of grasping, with a hand, a first grasp handle attached to one end of an extension spring. In other embodiments, the foot passes through and engages the first loop. The first loop may include, without limitation, a resilient loop, a single rigid handle, and a resilient double loop. The user grasps the first loop to manipulate one end of the spring. 
     The method  3400  may further comprise a Step  3404  of abutting, with a foot, a second loop attached to an opposing end of the extension spring. In other embodiments, the hand grabs the second loop. The second loop may include, without limitation, a resilient loop, a single rigid handle, and a resilient double loop. The user grasps the second loop to manipulate the opposing end of the spring. In this manner, both ends of the spring can be stretched to achieve the exercise. The loops are able to be grasped with different combinations of the hands and feet, so as to generate an extension of resistance that strengthens the long muscles, enhances flexibility, and emphasizes proper postural alignment, core strength, and muscle balance. 
     In some embodiments, a Step  3406  includes extending the arm against the tension of the extension spring. This serves to work the long muscles in the arm. The method  3400  may further utilize a Step  3408  of extending the leg against the tension of the extension spring. This stretching motion strengthens the long muscles in the leg. A Step  3410  includes causing the extension spring to stretch, whereby an extension of resistance is generated. The spring is configured to generate resistance to a pulling or pressing force when stretched. The level of resistance can be changed by the user through selection of different resistance levels of springs. Thus, the spring can be interchanged to achieve a desired resistance level. 
     In some embodiments, a Step  3412  may include retracting the arm and the leg simultaneously. This motion returns the arms and/or legs to the natural position for another round of stretching. A final Step  3414  includes repeating multiple extensions and retractions of the arm and leg, whereby a low-impact exercise is performed. This repetitive motion strengthens the long muscles, enhances flexibility, and emphasizes proper postural alignment, core strength, and muscle balance. In this manner, different styles of exercises, including Pilates, yoga, barre, etc., are possible. 
     Although the process-flow diagrams show a specific order of executing the process steps, the order of executing the steps may be changed relative to the order shown in certain embodiments. Also, two or more blocks shown in succession may be executed concurrently or with partial concurrence in some embodiments. Certain steps may also be omitted from the process-flow diagrams for the sake of brevity. In some embodiments, some or all the process steps shown in the process-flow diagrams can be combined into a single process. 
     These unique steps for the method  3400  allow for the creation of multiple exercise routines that utilize the different loops  108   a - b ,  202   a - b ,  302   a - b  and exercise machine equipment. Different spring resistances are also used. For example,  FIGS.  7 A- 7 B  illustrate a user exercising with the system  100 , with  FIG.  7 A  illustrating the user on an exercise mat in a Yoga Seated position  700   a . In the Yoga Seated position  700   a  the hands and feet grasping the loops  108   a - b , and the user stretching the spring.  FIG.  7 B  references the Dove position  700   b  with the arms extending towards the back while stretching the spring  102 . 
     In one exercise routine possible through the method  3400 , a user utilizes a cylindrical support member to work the core of the body and the long muscles of the arms. As illustrated in  FIGS.  8 A- 8 B  the user moves to a Foam Roller Flexion position  800   a  with the arms resting on the cylindrical support member and the arms retracted. The system  100  also allows the user to perform the Foam Roller Extension position  800   b  with the arms resting on a cylindrical support member and the arms extended to stretch the spring  102 . This unique position  800   a - b  stretches and works the core and arms muscles. 
     Continuing with exercise routines,  FIG.  9    illustrates a perspective view of a user exercising with the system  100 , showing the user on an exercise mat in a Pilates—Leg Pull Front position  900 . In another example of a Pilates exercise,  FIGS.  10 A- 10 B  reference a user exercising with the system, showing the user on a Pilates—Spine Corrector™ in an extension position  1000   a  and a flexion Pilates—Spine Corrector™ position  1000   b  with the user resting on barred shaped support while stretching the spring  102  between the feet and hands. 
     Continuing with exercise techniques from the method  3400 ,  FIG.  11    shows the user on a Wheeled Pilates Exercise Device™ position  1100  with the arms behind the head and the spring being stretched laterally.  FIGS.  13 A- 13 B  reference the user exercising with the system, showing the user in the Pilates Reformer—Standing Splits—Double Apparatus System position  1300   a  and a Pilates Reformer—Rotating Standing Splits—Double Apparatus System position  1300   b  with the apparatus attached to the legs while the user stands on a slide machine, and simultaneously stretches the spring with the arms. 
     In another exercise technique,  FIGS.  14 A- 14 B  reference the user on a Pilates Trapeze Table—Push Through Plus Rotation position  1400   a  and a Pilates Trapeze Table—Push Through Plus Sitting position  1400   b  with the user utilizing loop. The user stretches the right side of the body, with the spring offering resistance between the foot and hand. The left hand of the body clasps the push through bar of which is attached to the trap table, thus allowing for push through plus rotation with the squatted between the right hand and the foot resistance, and thereby working spine rotation and the long muscles of the arm and core. 
     In yet another exercise technique,  FIG.  15    illustrates the user being supported on a physio ball  1502  on a Pilates Trap Table—Advanced Skydiver position  1500 . In this position, the legs are supported from an upper frame, and the chest rests on the physio ball  1502 , while the user stretches the spring behind the back in an Eagle pose.  FIGS.  16 A- 16 B  illustrate perspective views of a user exercising with the system, showing the user on the Pilates Wunda Chair™ position  1600   a  and a Pilates Wunda Chair™ position  1600   b  with the user stretching the spring between the hands in front and rear of the torso. This is an effective position for generating resistance in the spring  102  to work the arm, leg, and core muscles. 
     In yet another exercise technique,  FIGS.  17 A- 17 B  illustrate the user on a track on the CoreAlign™—yoga Warrior Hand-to-Hand exercise (AKA c5 standing Eagle/moving lunge)  1700   a  with the user sliding the feet along a slide track while raising hip, the hands and the spring above the head during stretching. Another exercise is the Warrior with Rotation Hand-to-Foot position  1700   b , in which the spring attaches to the hand and foot on the same side of the body during stretching.  FIGS.  18 A- 18 B  illustrate the user in the Pilates Ladder Hanging Leg Raise exercise  1800   a  with the user hanging from a bar and the spring extended between the hand and foot. A Pilates Ladder Handstand position  1800   b  has the user performing a handstand while the spring extends between the foot and leg while being stretched. 
     Another exercise technique utilized by the method  3400  is shown in  FIG.  19   , which references the user in the Standing Yoga Reverse Triangle position  1900  with the user standing on the exercise mat while rotating the body as the spring stretches between the hands.  FIG.  20    illustrates the user in a Standing Balance position  2000  with the left foot balancing on a support member, while the right foot and right hand stretch the spring to generate resistance, and thereby work the arm, leg, and core muscles.  FIG.  21    shows the user in the Ballet position  2100  with the user resting a leg on a ballet bar  2102  while stretching the spring with the hands. This position serves to enhance balance and strengthen the deep stabilizers. 
     In yet another exercise technique,  FIGS.  22 A- 22 B  illustrate the user standing on Foot Stretching Domes  2202   a ,  2202   b  in the Eagle exercise  2200   a  and the Rotated Eagle exercise  2200   b , with the arms extended behind the back while simultaneously stretching the spring  102 . This position serves to enhance balance and strengthen the back and leg muscles.  FIG.  23    references the user sitting in the Eagle position  2300  with the user sitting with a ball under one leg to stretch the hamstring muscles and hips by leaning forward while stretching the spring between the hands.  FIG.  24    illustrates a perspective view of the user stretching the arms while the back rests on a physio ball in a Press position  2400 . Continuing with the exercise techniques,  FIGS.  25 A- 25 B  reference the user exercising with the system, showing the user lying prone across a physio ball while stretching the spring from hand-to-foot  2500 . This builds balance and arm muscle development in this bird dog exercise. 
     Another exercise technique utilized by the method  3400  is shown in  FIG.  26   , which illustrates the user on an exercise mat in a Resistance Training Squat position  2600 .  FIG.  27    illustrates a perspective view of a user exercising with the system, showing the user in a TRX Suspension position  2700 . The method  3400  also allows for use of an exercise bicycle  2802  while stretching the spring between the hands in seated Eagle. For example,  FIG.  28    illustrates a perspective view of a user exercising with the system, showing the user on an exercise bicycle  2802  in a Rowing position  2800 . The method  3400  also allows for use of a trampoline  2902  while stretching. 
     In yet another illustrative exercise routine,  FIG.  29    illustrates the user jumping on a trampoline  2902  while stretching the spring between the hands in a Trampoline Stretch position  2900 .  FIG.  30    illustrates a perspective view of a user exercising with two systems  3000   a ,  3000   b , showing two users in a Standing Tandem position  3002 . This dual user capacity can be used with two or more systems, with each system having its own loop type and springs with different levels of resistance. 
     The exercise system  100  is also effective for enabling older and younger, and sick people to participate in Pilates exercise. For example,  FIG.  31    illustrates a perspective view of an elderly user  3100  exercising with the system, showing the elderly user  3100  in a Stretch position.  FIG.  32    illustrates a perspective view of a young user  3200  exercising with the system, showing the young user, such as a child, in a Stretch position. And  FIG.  33    illustrates a perspective view of a patient  3300  exercising with a partner as each person grabs one end of the spring and stretches in a Patient Tandem position. Thus, the capacity to change loops and levels of spring resistance allow the elderly, young children, and sick people can also benefit from the system  100 ,  200 ,  300 . 
     The exercise system  100  can be also effective for using in the swimming pool for user to have an additional option when he or she goes to the pool, or for the person who needs to do rehabilitation in the water. For example,  FIG.  35    illustrates a perspective view of a user  3500  exercising with the system, showing the user  3500  in a Stretch position  1 . And,  FIG.  36    illustrates another perspective view of a user  3600  exercising with the system, showing the user  3600  in a different Stretch position  2 . Thus, the capacity to change loops and levels of spring resistance allow the user in the pool can also benefit from the system  100 ,  200 ,  300 . 
     In other embodiments, the exercise system  100  are employing two springs  102  with three loops (graspable handles)  108   a - c . For example,  FIG.  37    illustrates a perspective view of a user  3700  exercising with the system, showing the user  3700  in a Stretch position to stretch legs and arms, while the system having two springs  102  with three loops  108   a - c.    
     In other embodiments, the exercise system  100  are employing two springs  102  with four loops (graspable handles)  108   a - d . For example,  FIG.  38    illustrates a perspective view of a user exercising with the system, showing the user in a Stretch position  1  to stretch legs and arms, while the system having two springs  102  with four loops  108   a - d . And,  FIG.  39    illustrates another perspective view of a user  3900  exercising with the system, showing the user  3900  in a different Stretch position  2  to stretch legs and arms, while the system having two springs  102  with four loops  108   a - d.    
     Furthermore, the  FIGS.  40 &amp;  41    respectively illustrate a perspective view of Spring exercise system, like used in the  FIGS.  38  &amp;  39   , the Spring exercise system employed with four loops  108   a - d  and two springs  102  to create bilateral exercise options with this apparatus, using two hands or two feet alternatively with one foot or one hand. There are multiple standing and combined with other exercise apparatus that are not pictured here, but are consistent with other illustrations herein and with the Method employed throughout with the single spring apparatus. 
     These and other advantages of the invention will be further understood and appreciated by those skilled in the art by reference to the following written specification, claims and appended drawings. 
     Because many modifications, variations, and changes in detail can be made to the described preferred embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalence.