Patent Publication Number: US-9415258-B1

Title: Modular system for exercise and muscle manipulation work

Description:
TECHNICAL FIELD 
     This application is directed, in general, to exercise equipment and muscle relief devices, and more specifically, to methods and systems for exercise and muscle manipulation work. 
     BACKGROUND 
     Today many people recognize the value of exercise and various types of muscle manipulation work to help promote a healthy body. Exercise promotes, among other things, cardiovascular health, strength, and endurance. Muscle manipulation work includes, without limitation, massages, roller work, trigger point work, and the like for muscles, tendons, and connective tissue. Trigger points (also known as muscle knots) are sensitive spots that are typically the result of injuries or overactive use. Muscle manipulation work can help relax and loosen muscles and promote rehabilitation. 
     SUMMARY 
     According to an aspect of the disclosure, a system is presented that allows various components to be quickly assembled or separated to use for exercises or muscle manipulation work. A plurality of quick magnetic couplers is used to allow the components to be assembled and separated. The exterior of at least some of the components are covered with foam to be used as adhesion rollers. Rotation of the couplers allows the components in certain configurations to be used as exercising devices. 
     According to one illustrative embodiment, the system provides a reselectable combination of modules or components, to be configured by the user for specific targeted function, to accomplish the diminishment of myofascial muscle adhesion phenomenon, as well as the release of muscle tissue contraction or other purposes, as well as being, in a group of configurations, an active applied exercise mechanism, used to target specific myofascial adhesion issues, specific muscle contraction issues and specific muscle groups. The modular system includes mechanisms, that when combined into differing configurations, present differing mechanical features to accomplish specific tasks based on each configuration. 
     According to one illustrative embodiment, a modular system for exercise and muscle manipulation work includes a central member having a cylindrically-shaped body and a first end and a second end; a first attachment member having a first end and a second end; and a second attachment member having a first end and a second end. The system also includes a first rotatable and releasable magnetic quick-link coupler associated with the central member and the first attachment member for releasably and rotatably coupling the central member to the first attachment member and a second rotatable and releasable magnetic quick-link coupler associated with the central member and the second attachment member for releasably and rotatably coupling the central member to the second attachment member. Each of the rotatable and releasable magnetic quick-link couplers includes a protruding member having a first magnetic member, a female receptacle sized and configured to receive at least a portion of the protruding member and having a second magnetic member. The first magnetic member and second magnetic member include at least a magnet and a complimentary attractive material. The complimentary attractive material is a second magnet or a magnetically-attractive material. The central member may be for example, without limitation, a first roller member. The first attachment member may be an adhesion release ball, a handle tool, a roller member, a trigger point tool, or another tool. 
     According to another illustrative embodiment, a modular system for exercise and muscle manipulation work includes a first roller member having a cylindrically-shaped body and a first end and a second end. The first roller member has a diameter that is greater than four inches and less than 18 inches. The first roller member comprises a plurality of adhesion roller disc members formed from a polymer-based foam and disposed over a first tubular member, each of the plurality of adhesion roller disc members formed with a plurality of longitudinal grooves. The longitudinal grooves are substantially parallel to a longitudinal axis of the first roller member. The modular system further includes a first attachment member having a first end and a second end and a first rotatable and releasable magnetic quick-link coupler rotatably and releasably coupling the first end of the first roller member and the second end of the first attachment member. The first rotatable and releasable magnetic quick-link coupler comprises at least one magnet and at least two mating members. The system also includes a second attachment member having a first end and a second end and a second rotatable and releasable magnetic quick-link coupler rotatably and releasably coupling the second end of the first roller member and the first end of the second attachment member, wherein the second rotatable and releasable magnetic quick-link coupler comprises at least one magnet and at least two mating members. 
     According to another illustrative embodiment, a method of manufacturing a modular system for exercise and muscle manipulation work includes providing a first longitudinal tubular member; disposing a plurality of adhesion roller disc members about the longitudinal tubular member to form a first roller member having a first end and a second end and having a diameter greater than four inches; providing a first attachment member formed with a second longitudinal tubular member and having a first end and a second end; and providing a first rotatable and releasable magnetic quick-link coupler having a first member and a second member. The method also includes coupling the first member of the first rotatable and releasable magnetic quick-link coupler to the second end of the first attachment member; coupling the second member of the first rotatable and releasable magnetic quick-link coupler to the first end of the first roller member; providing a second attachment member formed with a third longitudinal tubular member having a first end and a second end; providing a second rotatable and releasable magnetic quick-link coupler having a first member and a second member; coupling the first member of the second rotatable and releasable magnetic quick-link coupler to the second end of the first roller member and first end of the second attachment member; and coupling the second member of the second rotatable and releasable magnetic quick-link coupler to the first end of the second attachment member. Other systems and methods are presented herein. 
    
    
     
       DESCRIPTION OF THE DRAWINGS 
       Illustrative embodiments of the present invention are described in detail below with reference to the attached drawing figures, which are incorporated by reference herein and wherein: 
         FIG. 1  is a schematic, perspective view of a person using an illustrative embodiment of a modular system for exercise and muscle manipulation work shown in one configuration; 
         FIG. 2  is a schematic, elevation view of the modular system for exercise and muscle manipulation work of  FIG. 1 ; 
         FIG. 3  is a schematic, exploded, elevation view of an illustrative embodiment of a modular system for exercise and muscle manipulation work; 
         FIG. 4  is a schematic, elevational cross section of a portion of the modular system for exercise and muscle manipulation work of  FIG. 3  showing one illustrative embodiment of a rotatable and releasable quick-link coupler; 
         FIG. 5  is a schematic, side elevation view of a portion of an illustrative embodiment of a modular system for exercise and muscle manipulation work; 
         FIG. 6A  is a schematic, elevation view with a portion in cross section of an illustrative embodiment of a modular system for exercise and muscle manipulation work shown in another configuration; 
         FIG. 6B  is a detail of one end of the modular system for exercise and muscle manipulation work of  FIG. 6A ; 
         FIG. 6C  is a detail of one end of the modular system for exercise and muscle manipulation work of  FIG. 6A ; 
         FIG. 7  is a schematic, elevation view of an illustrative embodiment of a modular system for exercise and muscle manipulation work in another configuration; 
         FIG. 8  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing a trigger point tool; 
         FIG. 9  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing a trigger point tool coupled with a first handle tool, a second handle tool, and an adhesion release ball; 
         FIG. 10  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing a first handle tool coupled with a second handle tool; 
         FIG. 11  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing a trigger point tool coupled with an adhesion release ball; 
         FIG. 12  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing a trigger point tool coupled with a first handle tool; 
         FIG. 13  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing a first handle tool coupled with an adhesion release ball; and 
         FIG. 14  is a schematic, elevation view of an illustrative embodiment of a portion of a modular system for exercise and muscle manipulation work showing an adhesion release ball. 
     
    
    
     DETAILED DESCRIPTION 
     In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings that form a part hereof, and in which is shown, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is understood that other embodiments may be utilized and that logical structural, mechanical, electrical, and chemical changes may be made without departing from the spirit or scope of the invention. To avoid detail not necessary to enable those skilled in the art to practice the invention, the description may omit certain information known to those skilled in the art. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the claims. Unless otherwise indicated, as used throughout this document, “or” does not require mutual exclusivity. 
     The disclosure presents systems and devices that allow a person, or user, to use a single modular system to quickly accomplish different exercises and muscle manipulation work. Various possible components of the system may be interchanged using a plurality of rotatable and releasable quick-link couplers. The rotatable and releasable quick-link couplers allow the components to be held together, released when a releasing force is applied beyond a threshold, and when assembled to provide for relative motion between the components. The various possible configurations of the system and the relative movement between modules are useful. For example, a personal trainer could carry one system to a client&#39;s locale and yet provide many different exercises or avenues for muscle manipulation work with that one system. 
     The exterior of at least some of the components are covered with foam to be used as adhesion rollers. An adhesion roller, or roller, is typically a device designed to provide muscle manipulation by the transfer of force created by body weight. The force is distributed from the body to the surface of the adhesion roller and to the foundation surface (e.g., floor, block, table, etc.). The adhesion roller may be used as a static device with the load path from the body to the roller to the stable foundation surface or as a dynamic device in that the rolling action of a cylindrical section of the roller relative to both the foundation surface and the body creates a moving load path between the body, adhesion roller, and the foundation surface to cover more area range as demanded by the required muscle manipulation. Other uses may be made of the adhesion roller as well for the purpose of manipulating muscles. 
     In one illustrative embodiment, the disclosure includes a product for the fitness industry that involves a selectable combination of modules, to be configured by the user for specific targeted function to address myofascial muscle adhesion phenomenon, as well as the release of muscle tissue contraction, as well as being, in a group of configurations, an active applied exercise mechanism used to target specific muscle groups. The modular system includes mechanisms, that when combined into differing configurations, present differing mechanical features to accomplish specific tasks based on each reconfiguration. 
     Referring now to the FIGURES, and initially to  FIG. 1 , a modular system for exercise and muscle manipulation work  100  is shown in use. The modular system for exercise and muscle manipulation work  100  is shown being used by a participant  102 , or user, as an abdominal exercise roller  104 . The modular system for exercise and muscle manipulation work  100  may be used for various exercises or for muscle manipulation work on the participant  102  as will explained further below. 
     The participant&#39;s left hand  106  is shown grasping a first handle tool  108 , and the participant&#39;s right hand  110  is shown grasping a second handle tool  112 . The abdominal exercise roller  104 , which may be made up of one or more rollers, e.g., first roller member  122 , is rotatably and releasably coupled to the first handle tool  108  by a first rotatable and releasable magnetic quick-link coupler (described further below) and to the second handle tool  112  by a second rotatable and releasable magnetic quick-link coupler (described further below). The rotatable and releasable magnetic quick-link couplers allow rotation like a bearing so the participant  102  may hold the handle tools  108 ,  112  in place while the roller member  122  rotates relative to the handle tools  108 ,  112 . At the same time, an axial, separating force beyond a separating threshold may cause the rotatable and releasable magnetic quick-link couplers to release from the roller member  122 . 
     The modular system for exercise and muscle manipulation work  100  may include numerous other components and couplers as will be apparent to those skilled in the art after reading the disclosure herein. The modular system for exercise and muscle manipulation work  100  is shown with an adhesion release ball  116 , or ball, rotatably and releasably coupled to a first end (not explicitly shown) of the first handle tool  108 , and the system  100  includes a trigger point tool  118  rotatably and releasably coupled to a second end  120  of the second handle tool  112 . 
     Referring now primarily to  FIG. 2 , the illustrative embodiment of the modular system  100  for exercise and muscle manipulation work is shown in a different configuration. This illustrative embodiment of the modular system  100  for exercise and muscle manipulation work in this instance includes a central member, which in this embodiment is a first roller member  122 , having a cylindrically-shaped body  124  and a first end  126  and a second end  128 . The system  100  also includes a first attachment member  130  having a first end  132  and a second end  134 . In this instance the first attachment member  130  is a second handle tool  112 . The first handle tool  108  having a first end  136  and a second end  138  may be coupled at the second end  138  to the first end  132  of the second handle tool  112 . The system  100  also includes a second attachment member  140  having a first end  142  and a second end  144 . In this example the second attachment member  140  comprises a second roller member  146 . 
     The modular system  100  for exercise and muscle manipulation work also includes a first rotatable and releasable magnetic quick-link coupler  148  associated with the central member, e.g., first roller member  122 , and the first attachment member  130  for releasably and rotatably coupling the first roller member  122  to the first attachment member  130 . The system  100  also includes a second rotatable and releasable magnetic quick-link coupler  150  associated with the central member, e.g., first roller member  122 , and the second attachment member  140  for releasably and rotatably coupling the first roller member  122  to the second attachment member  140 . 
     The modular system  100  for exercise and muscle manipulation work may also include the adhesion release ball  116 , or ball, that is coupled to the first end  136  of the first handle tool  108  by a third rotatable and releasable magnetic quick-link coupler  152 . The system  100  may further include the trigger point tool  118  that is coupled to the second end  144  of the second attachment member  140  by a fourth rotatable and releasable magnetic quick-link coupler  154 . The trigger point tool  118  has a first end  156  and a second end  158 . The two handle tools  108 ,  112  are coupled by a fifth rotatable and releasable magnetic quick-link coupler  155 . A longitudinal axis (not explicitly shown) runs from the adhesion release ball  116  to the second end  158  of the trigger point tool  118 . 
     In this illustrative embodiment, each of the first handle tool  108 , second handle tool  112 , first roller member  122 , and second roller member  146  have an exterior surface formed from a flexible material, such as a relatively stiff polymer foam, e.g., 4 lb./ft 3  to 9 lb./ft 3 . Examples of suitable foam may include mono-cellular cross link polyethylene foam or closed-cell foam. Moreover, in this embodiment, a plurality of optional longitudinal grooves  160  is formed on the exterior of the surface of the flexible material. The plurality of longitudinal grooves  160  may be formed using any of number techniques, e.g., water jet, laser, mechanical cutting, for removing a portion of the flexible material to form the grooves  160 . The grooves  160  may be spaced radially and equally or with a pattern about the longitudinal axis. The longitudinal grooves  160  may be formed substantially parallel to the longitudinal axis (e.g.,  170  in  FIG. 3 ). 
     The modular system  100  for exercise and muscle manipulation work may include a first strap holder  162  coupled to the first end  126  of the first roller member  122  and a second strap holder  164  coupled to the second end  144  of the second attachment member  140 . A strap  166  may be coupled to the first strap holder  162  and the second strap holder  164 . One embodiment of the strap holders  162 ,  162  is presented further below in  FIG. 5 . The strap  166  may form a loop going through each of the strap holders  162 ,  164  and having an adjustment or release buckle  168 . The strap  166  may be applied for convenience of carrying the system  100  and then may be removed during use. It should be appreciated that the strap  166  and strap holders  162 ,  164  are optional. In another embodiment, a carrying case or bag sized and configured to fit over a full embodiment of the system  100  may be used and may have a strap for carrying the system  100 . 
     Referring now primarily to  FIG. 3 , another illustrative embodiment of the modular system  100  for exercise and muscle manipulation work is presented with a different configuration and in an exploded view. While presented as serpentine for space reasons in the figure, the system  100  has a longitudinal axis  170  that in the assembled position would obviously be straight. The components remain the same in this embodiment as compared to  FIG. 2 , but the second handle tool  112  is now on the other side. The parts numbers remain the same. 
     In this view, the first rotatable and releasable magnetic quick-link coupler  148  is seen to comprise a first member  147  and a second member  149 . In this instance, the first member  147  is a female receptacle member, and the second member  149  is a protruding member, but they could be reversed. The members  147 ,  149  are sized and configured to mate and remain magnetically attracted when in an assembled position as will be explained in connection with  FIG. 4  below. The other rotatable and releasable magnetic quick-link couplers are analogous. The second rotatable and releasable magnetic quick-link coupler  150  couples the central member, e.g., roller member  122 , and the second attachment member  140 . The third rotatable and releasable magnetic quick-link coupler is formed with a first member  151 , which in this instance is a female receptacle member, and a second member  153 , which in this case is a protruding member. 
     The adhesion release ball  116 , or adhesion ball, is coupled with another rotatable and releasable magnetic quick-link coupler to the first handle tool  108 . The rotatable and releasable magnetic quick-link coupler for this coupling is formed with a first member  172  in the adhesion release ball  116  and a second member  174  on the first end  132  of the first handle tool  108 . The adhesion release ball  116  has a first end  176  and a second end  178 . The first member  172  is a female receptacle member formed in the adhesion release ball  116  at the second end  178 . 
     In many embodiments, the handle tools  108 ,  112 , first roller member  122 , and second roller member  115  are formed in a similar manner. In each instance an analogous construction may be used. For illustrations purposes, consider the first roller member  122  as shown in  FIG. 3 . A tube member  180  is supplied. The tube may be formed from aluminum, steel, titanium, hard plastic, or any rigid material. In one illustrative, non-limiting embodiment, a 6061 alloy t6 aluminum tube of about 0.75 inches (1.9 cm) diameter (outside) and a 0.065 inch (1.65 cm) wall thickness was used, but a person of skill in the art will appreciate that a wide variety of materials and sizes may be used. In other embodiments, different techniques may be used on each. 
     A plurality of flexible discs, e.g., adhesion roller disc members  182 , are made from a flexible material, e.g., a foam material, and then added to the tube member  180 . The tubular member  180  extends through a center portion of each of the adhesion roller disc members  182 . In some embodiments, the roller disc members  182  may not be attached but may be free to rotate. In other embodiments, the roller disc members  182  may be attached to the tube member  180  using glue, bonding, fastener, interference fit, or other technique. The size of the roller disc members  182  may vary with different parts. For example, the first roller member  122  and second roller member  146  may have an outside diameter between 4 and 18 inches (10.6-45.7 cm) or other dimension, and often each is about 5 inches (12.7 cm). The outside diameter of the first and second handle tools  108 ,  112  may be in the range of 1.5 to 3 inches (3.8-7.62 cm). The adhesion release ball  116  may have a diameter between 1 and 5 inches (2.54-12.7 cm). 
     As previously noted, the exterior of the roller disc members  182  may have longitudinal grooves  160  formed. In an illustrative embodiment, at least one of the roller disc members  182  may be less rigid than an average stiffness for the plurality of adhesion roller disc members. This may be desirable for when the system  100  is being used as an adhesion roller and used on a back or shin or other sensitive body part; in such cases, it may be desirable to have a softer portion for the sensitive body part. In other embodiments, lateral grooves may be formed in lieu or in addition to the longitudinal grooves. In still other embodiments, various shapes may be formed on the foam, or deep, light, medium, and harder may foams may be used and the surface design may be adjusted to impact the angular contact and pressures when used as an adhesion roller. 
     Referring now primarily to  FIG. 4 , for illustration purposes a detail of the rotatable and releasable magnetic quick-link coupler  150  and a portion of the first roller member  122  and second attachment member  140 , which is another roller member in this embodiment, are shown in a cross section. The rotatable and releasable magnetic quick-link coupler  150  is in a separated position. 
     With reference to the first roller member  122 , the tube member  180  may be seen more clearly along with the plurality of disc members  182 . In this view an optional spacer member  184  may be seen between adjacent members of the plurality of disc members  182 . Optional spacer members  182  may be disposed between one or more adjacent members of the plurality of disc members  182  for aesthetics or, in embodiments with the disc members not adhered to the tubular member  180 , to facilitate rotation of the disc members  182 . In one embodiment, the disc members  182  are a first color and a plurality of spacer members  184  are of a different color. 
     As previously suggested, each of the plurality of disc members  182  may be the same and formed from a flexible material, but in other embodiments, one or more discs of the plurality of disc members  182  may have differing stiffnesses or densities. For example, in  FIG. 4 , a first disc member  186  and a second disc member  188  may be formed of a first stiffness and a third disc member  190  may be less stiff or less rigid. The third disc member  190 , or less rigid disc member  190 , may be strategically placed to allow the third disc member  190  to be placed against a sensitive body part, e.g., spine or shin, while allowing the more rigid disc members  186 ,  188  to contact muscles for muscle manipulation work. The less rigid disc member  190  may be held in place by a positioning ring  192 . The positioning ring  192  may be a spacer that has been attached to the tubular member  180  or a ridge formed as part of the tubular member  180 . In other embodiment, the positioning ring  192  may be omitted. 
     In some embodiments, the third disc member  190  may be at least 10 percent less rigid than an average stiffness for the plurality of adhesion roller disc members  182 . The rigidity or stiffness may be measured by any known means. In one approach, an item may be pressed against the exterior of each adhesion roller disc members while noting the distance of inward compression. The distances when compressed may be then be compared for each disc member. Many other approaches to measuring the rigidity or softness of the material are possible. In some embodiments, multiple members of the plurality of disc members may be softer or harder than the average for different impacts. 
     A second end  194  of the tubular member  180  is shown with a flange  194  that holds the plurality of disc members  182  on the tubular member  180  particularly in embodiments where the plurality of disc members  182  are free to rotate. The flange  194  may be attached to the tubular member  180  by interference fit, welded, bonded, or attached with any other technique or formed integrally. 
     The second attachment member  140 , which in this embodiment is a second roller member  146 , is formed in an analogous fashion. Thus, the second roller member  146  also has a tubular member  196 , a flange  198  proximate the first end  142 , and a plurality of disc members  202 . 
     The rotatable and releasable magnetic quick-link coupler  150  is formed with a first member  204  and a second member  206 . In this example, the second member  206  is a protruding member  208  having a first magnetic member  210 . The second member  204  is a female receptacle member  212  sized and configured to receive at least a portion (and typically all) of the protruding member  208 . The female receptacle member  212  includes a second magnetic member  214 . The first magnetic member  210  and the second magnetic member  214  may both be magnets with polarity such that they attract each other or one may be a magnet and the other may be a magnetically attractive material such as a metal mass. In short the second magnetic member  214  is a complimentary attractive material—either magnet or attractive metal or other attractive material. In any event, at least one of the first magnetic member  210  and second magnetic member  214  comprises a magnet. The magnets used may be rare earth magnets, e.g., high flux density (c45) or earth magnet. In one illustrative, non-limiting, example a Neodymium-Iron-Boron magnet with 23 pounds attractive force was used. 
     The first magnetic member  204  is shown with a tubular member  216  sized and configured to fit within the first tubular member  180 —the clearance may be 0.002 inches (0.0508 mm) or more. The tubular member  216  has a first end  217  and a second end  219 . The internal tubular member  216  has an outside diameter that is approximately the same as the inside diameter of the first tubular member  180 . The tubular member  216  may be secured within the first tubular member  180  by interference fit, glue, bonding, or any other technique. In this embodiment, a magnet  218  is secured within the tubular member  216  by glue, bonding, interference fit, or any technique. The magnet  218  is flush with the second end  219  of the internal tubular member  216 . The second end  219  is displaced from the flange  194  a distance substantially equal to or greater than that of the protruding member  208 . In still another embodiment, the second member  204  maybe formed as one single magnet with out requiring tubular member  216 . 
     To form the second member  206 , another internal tubular member  220  is introduced into the tubular member  196  to be positioned proximate a flange  198 . The tubular member  220  has an outside diameter that is approximately the same as the inside diameter of the tubular member  196 . The tubular member  220  may be secured in position by interference fit, glue, bonding, or any technique. In securing the tubular member  220  in the tubular member  196 , a protruding portion  222  extends beyond the flange  198  and is sized to be approximately the same length or shorter than the depth with which the second end  219  of the tubular member  216  was displaced from the flange  194 . The protruding portion  222  is sized to have a smaller outer diameter than the inner diameter of the tubular member  180  in order to allow rotation to readily occur between the two when in the assembled position. 
     In going from the separate position shown in  FIG. 4  to the assembled position (e.g., as in  FIG. 2 ), the protruding portion  222  is inserted into the tubular member  180  proximate flange  194  and the first member  204  and second member  206  are brought towards each other such that a magnetic field causes the two members  204 ,  206  to attract each other remain in proximity. This forms the assembled position. When ready to go to the separated position, a user pulls the first member  204  and second member  206  away from each (away axially along the longitudinal axis) with a force that will cause the two members  204 ,  206  to separate once a separation threshold force has been meet. This procedure (going to the assembled position and separated position) may be accomplished by a user very quickly. In one example, it takes less than two seconds to assemble or disassemble. 
     All the rotatable and releasable magnetic quick-link couplers are analogous to the rotatable and releasable magnetic quick-link coupler  150  that has been described. These rotatable and releasable magnetic quick-link couplers allow for not only quick connection and release of components in the system  100  so as to assume a wide variety of configurations, but are configured to allow rotation between components. Because the protruding portion  222  is sized and configured to rotate in the tubular member  180 , rotation between components may be achieved allowing for additional versatility. It should be noted that other embodiments of the rotatable and releasable magnetic quick-link couplers may be used and in each instance they will have at least one magnet to facilitate a quick release. 
     Referring now to  FIG. 5 , an end view of a roller member, e.g., the first end  126  of the roller member  122 , is shown. The first strap holder  162  has a portion that is under a flange  224  that is attached to tubular member  180 . The first strap holder  162  has a body  226  formed with three wings  228 ,  230 ,  232 , which in this embodiment are spaced at approximately 120 degree intervals, but numerous options are possible. Wings  228  and  230  have openings  234  and  236 , which serve as opening to attach accessories. Wing  232  has a strap loop  238  for receiving the strap  166 . It should be understood that numerous variations are possible, but this provides a way to secure the strap  166 . With two strap holders  162 ,  164  displaced from one another along the longitudinal axis of a configured system with all the components, the strap  166  may be applied and the system  100  carried with the strap  166 . 
     In this view, one can clearly see the plurality of grooves  160 . Each groove has a trough  240  and adjacent ridges  242 . The pitch  244  is the linear distance between adjacent ridges or troughs. The depth from the ridges  242  to the bottom of the trough  240  may be in the range of 1/16 inch to ½ of an inch (15.8 mm to 1.27 cm). The radius of the grooves may be in the range of 1/16 of an inch to a half an inch (15.8 mm to 1.27 cm). The pitch is linear dimension to like locations on adjacent tooth components, e.g., ½ inch pitch is ½ inch between centers of adjacent trough features. In illustrative, non-limiting example, for a diameter less than three inches, a ⅜ inch pitch is used and for a diameter greater than three inches, a ½ inch pitch is used. 
     Referring now primarily to  FIG. 6A , another configuration of the modular system  100  for exercise and muscle manipulation work is presented with a portion shown in cross section. In this embodiment, there is the central member, which in this embodiment is the first roller member  122 , coupled at one end to a first attachment member  130 , which is the first handle tool  108 , and coupled at the other end to a second attachment member  140 , which is the second handle tool  112 . The trigger point tool  118  is coupled to the first end  132  of the first handle tool  108 . The adhesion release ball  116  is coupled to the second end  144  of the second handle tool  112 . The trigger point tool  118  is coupled to the first handle tool  108  by a rotatable and releasable magnetic quick-link coupler  246 . The first handle tool  108  is coupled to the first roller member  122  by another rotatable and releasable magnetic quick-link coupler  248 . The first roller member  122  is coupled to the second handle tool  112  by another rotatable and releasable magnetic quick-link coupler  250 . Finally, the second handle tool  112  is also coupled to the adhesion release ball  116  by another rotatable and releasable magnetic quick-link coupler  252 . Each of the rotatable and releasable magnetic quick-link couplers is analogous to the one presented in connection with  FIG. 4 . 
     Referring now primarily to  FIGS. 6B and 8 , additional aspects of one illustrative embodiment of the trigger point tool  118  are presented. The trigger point tool  118  may or may not be used as part of the previously presented systems  100 . The trigger point tool  118  has the first end  156  and second end  158 . The trigger point tool  118  includes a ball  254  at the first end  156  that is coupled to a longitudinal body  256 . The ball  254  has a first end  258  and a second end  260 . The longitudinal body  256  has a first end  262  and a second end  264 . The second end  260  of the ball  254  may be formed with a threaded opening  266  sized and configured to receive a threaded male portion  268  formed on the first end  262 . The threaded male portion  268  and threaded opening  266  facilitate coupling of the ball  254  to the longitudinal body  256 . The second end  264  of the longitudinal body  256  is coupled to one member  270 , which in this embodiment is a protruding member, of a rotatable and releasable magnetic quick-link coupler. 
     The trigger point tool  118  may be separated from other components and used alone. The trigger point tool  118  is used for working a particular muscle. A force may be applied axially (along the longitudinal axis) to force the ball  254  against the muscle or may be rolled so the longitudinal body  256  works the muscle. 
     Referring now to  FIGS. 6C and 14 , additional aspects of one illustrative embodiment of the adhesion release ball  116 , or adhesion ball, are presented. Like the trigger point tool, the adhesion release ball  116  may be used while coupled other components or alone. The adhesion release ball  116  has the first end  176  and second end  178 . Proximate the second end  178  a cylindrical opening is formed into which a portion of a rotatable and releasable magnetic quick-link coupler is disposed. In this embodiment, the first member  172  is disposed therein and is a female receptacle member. The complimentary protruding member  272  of the second handle  112  is shown in  FIG. 6C  mated with the female receptacle member. Uses for the adhesion release ball  116  are described further below. 
     Referring now primarily to  FIG. 7 , an illustrative embodiment of an extended roller  276 , or adhesion roller, is presented. The extended roller  276  is formed by a first roller member  122  coupled to a second roller member  278  by the rotatable and releasable magnetic quick-link coupler  150 . In one illustrative embodiment, the combined length of the first roller member  122  and second roller member  278  is approximately 24 inches, but of course, other dimensions are possible as desired. The extended roller  276  may be used as an abdominal exerciser  104  when combined with handle tools as shown in  FIG. 1 . The first and second roller members  122 ,  278  may have an outside diameter that is greater than four inches and less than 18 inches. Other dimensions are, of course, possible. The extended roller  276  may be used as an exercise tool or adhesion roller. As an adhesion roller participants place between the extended roller  276  the floor (or foundation surface) and their body and manipulate different muscles. 
     At this point it should be appreciated that the various possible components of the system  100  may be used alone or together and may be combined using the rotatable and releasable magnetic quick-link couplers into many different configurations to allow a participant to exercise or work a muscle or to have a personal trainer or other person assist with muscle manipulation work. The components include the two roller members  122 , 146 ; two handle tools  108 ,  112 ; and two additional tools: adhesion release ball  116  and trigger point tool  118 . It should be understood that other tools might be included as well. The remaining figures further amplify aspects of the combinations and components. 
       FIG. 9  presents yet another combination of some of the components that may be included as part of the system  100 . In this instance the first roller member  122  is the first handle tool  108 . The first attachment member  130  is the trigger point tool  118 . The second attachment member  140  is the second handle tool  112 . In addition, the adhesion release ball  116  is coupled to the second end of the second handle tool  112 . This configuration involves three rotatable and releasable magnetic quick-link couplers  278 ,  280 , and  282 . This configuration may be particularly useful for applying a force along the longitudinal axis to apply a force using the spherical surface of the trigger point tool  118  or the adhesion release ball  116 . An operator, e.g., a trainer, may use this configuration to work a particular muscle for the participant or it may be used by the participant directly to manipulate muscles. The rotation of the handle tools may help resolve friction in such a treatment. 
       FIG. 10  shows a configuration with the first handle tool  108  and the second handle tool  112  coupled together by the rotatable and releasable magnetic quick-link coupler  280 . The handle tools  108 ,  112  may, of course, take various dimensions. In one embodiment, each handle tool  108 ,  112  is about 5 inches (12.7 cm) in length with a diameter of about 1.25 inches (3.175 cm). Again, the internal tubular member may have different dimensions, but in one embodiment has 0.75 inch (1.9 cm) diameter and covered with a foam member to avoid slippage and promote comfort. The foam on the handle tools  108 ,  112  may have various patterns formed thereon such as longitudinal grooves. This configuration may be used as a plantar roller or for applying contact pressure to a small projected area. When used on the foot, one or both of the handle tools  108 ,  112  may be placed on the floor and then the participant may place their foot on the roller and roll the muscles on the bottom of the foot. 
       FIG. 11  presents a configuration with the trigger point tool  118  coupled to the adhesion release ball  116  by a rotatable and releasable magnetic quick-link coupler  284 . This configuration may be used to manipulate a particular trigger point on a participant&#39;s body. 
       FIG. 12  shows a configuration with the trigger point tool  118  coupled to the first handle  108  by a rotatable and releasable magnetic quick-link coupler  286 . This configuration may be used again to manipulate a particular trigger point on a participant&#39;s body and may be particularly useful where additional force or mechanical advantage is desired. 
       FIG. 13  presents a configuration with the first handle tool  108  coupled to the adhesion release ball  116  by a rotatable and releasable magnetic quick-link coupler  288 . This configuration may be used to manipulate a particular trigger point on a participant&#39;s body. 
       FIG. 14  presents adhesion release ball  116 , or adhesion ball. The adhesion release ball  116  was discussed previously in connection with  FIG. 6C . The adhesion release ball  116  may be used to roll individual trigger points against a surface. For example, a portion of an arm might be manipulated using the ball  116  by placing the ball between the arm and a wall and causing relative movement. 
     Again in this point the versatility of the system  100  should be clear, but additional uses and configurations will be described. In one embodiment, the system  100  is configured with the various components in this order: adhesion roller  116 , first handle tool  108 , first roller member  122 , second roller member  278 , second handle tool  112 , and trigger point tool  118 . The strap  166  is attached to an outside portion of one roller  122  and to the other outside portion of the other roller member  278 . This configuration is convenient for carrying the system  100  from one place to another. Other orders of the components could be used as well. 
     In another embodiment, shown in  FIG. 1 , the system  100  is assembled with this order: adhesion roller  116 , first handle tool  108 , first roller member  122 , second roller member  278 , second handle tool  112 , and trigger point tool  118 , and is used as an abdominal exerciser. In another similar embodiment, the system  100  is assembled in this order: adhesion roller  116 , first handle tool  108 , first roller member  122 , second handle tool  112 , and trigger point tool  118 , and again used as an abdominal exerciser. 
     In one embodiment, shown in  FIG. 7 , the system  100  is assembled as only a first roller member  122  and second roller member  278 . In this configuration, the system  100  is used primarily as an adhesion roller for all different kinds of body parts, e.g., legs, back, IT band (illiotibial band), etc. 
     In still another illustrative embodiment, the system  100  is assembled with this order: adhesion roller  116 , first handle tool  108 , second handle tool  112 , and trigger point tool  118 . This configuration of the system  100  may be used for trigger point muscle manipulation work such as on thigh or other body part. The handle tools  108 ,  112  may be rolled against the muscle being worked. Alternatively the adhesion roller  116  may be used to work the muscle or the smaller ball of the trigger point tool  118  may be used on the muscle. In another configuration, just the trigger point tool  118  is used alone on muscles. In this scenario, the user may hold the longitudinal body  256  ( FIG. 8 ) of the trigger point tool  118  and apply a force along the longitudinal axis using the ball  254 . 
     In still another embodiment of the system  100 , just the adhesion roller or ball  116  is used. To use it, the ball  116  is placed on the floor and the user puts their foot on top of it and rolls. It may also be used for other body parts in a similar way. As another example, the user may put the ball  116  on the floor and sit on it to work the user&#39;s gluteus maximus muscle. In another similar embodiment of the system  100 , a handle tool  108 ,  112  is placed on the ground and the user places their foot on top of it and rolls to work muscles on the lower portion of the foot. 
     These are only some of the possible configurations. It should be understood that various components might be mixed and matched according to the various permutations for different purposes. Moreover other attachments may be used. For example, in one embodiment medicine balls may have a member of the rotatable and releasable magnetic quick-link couplers installed therein and then mated with a handle tool to make a dumbbell—more than one handle tool may be used. 
     In one illustrative embodiment, a modular system for exercise and muscle manipulation work includes a first roller member having a cylindrically-shaped body and a first end and a second end. The first roller member has a diameter that is greater than four inches and less than 18 inches. The first roller member comprises a plurality of adhesion roller disc members formed from a polymer-based foam and disposed over a first tubular member, each of the plurality of adhesion roller disc members formed with a plurality of lateral grooves and each having a radius of at least ⅛ of inch. The lateral grooves are substantially parallel to a longitudinal axis of the first roller member. The modular system further includes a first attachment member having a first end and a second end and a first rotatable and releasable magnetic quick-link coupler rotatably and releasably coupling the first end of the first roller member and the second end of the first attachment member. The first rotatable and releasable magnetic quick-link coupler comprises at least one magnet and at least two mating members. The system also includes a second attachment member having a first end and a second end and a second rotatable and releasable magnetic quick-link coupler rotatably and releasably coupling the second end of the first roller member and the first end of the second attachment member, wherein the second rotatable and releasable magnetic quick-link coupler comprises at least one magnet and at least two mating members. 
     In another illustrative embodiment, a method of manufacturing a modular system for exercise and muscle manipulation work includes providing a first longitudinal tubular member; disposing a plurality of adhesion roller disc members about the longitudinal tubular member to form a first roller member having a first end and a second end; providing a first attachment member formed with a second longitudinal tubular member and having a first end and a second end; and providing a first rotatable and releasable magnetic quick-link coupler having a first member and a second member. The method also includes coupling the first member of the first rotatable and releasable magnetic quick-link coupler to the second end of the first attachment member; coupling the second member of the first rotatable and releasable magnetic quick-link coupler to the first end of the first roller member; providing a second attachment member formed with a third longitudinal tubular member having a first end and a second end; providing a second rotatable and releasable magnetic quick-link coupler having a first member and a second member; coupling the first member of the second rotatable and releasable magnetic quick-link coupler to the second end of the first roller member and first end of the second attachment member; and coupling the second member of the second rotatable and releasable magnetic quick-link coupler to the first end of the second attachment member. 
     In one illustrative embodiment, a modular system for exercise and muscle manipulation work includes a configuration with at first roller member  122  or a second roller member  146  that have a plurality of roller disc members that are independent in rotation to each other. The disc members may be covered with a mono-cellular foam in the 2 to 10 lb. density. 
     Although the present invention and its advantages have been disclosed in the context of certain illustrative, non-limiting embodiments, it should be understood that various changes, substitutions, permutations, and alterations can be made without departing from the scope of the invention as defined by the claims. It will be appreciated that any feature that is described in a connection to any one embodiment may also be applicable to any other embodiment.