Adjustable exercise device

Abstract

A sliding clip is disclosed. The clip may slide along a strap, for example on a belt. Optionally the clip includes a fastener. Optionally, the fastener may be configured to hold one or more cords, for example bungee cords. For example, the cords may fit into a channel and/or be immobilized by a pressing them with a clamp and/or a threaded knob. Optionally the positions of the cords may be adjusted and/or the fastener may be opened for replacement of the cords. Optionally the fastener is configured for one handed use. For example the parts may be retained together even when the fastener is opened. Optionally one or more clips and/or bungee cords are mounted of a belt assembly forming an exercise device.

What is claimed is: 
     
         1 . A clip comprising:
 a connector for slidably connecting the clip to a textile strap;   a fastener for reversibly attaching and detaching an object to the clip   a closure for said fastener having a closed position wherein said object is prevented from detaching from said fastener and an open position wherein said object can be detached from said fastener and   a retainer for retaining the closure to the clip in said open position.   
     
     
         2 . The clip of  claim 1 , wherein said fastener includes a channels sized and shaped to hold at least two bungees. 
     
     
         3 . The clip of  claim 2 , wherein said closure is configured to fix a position of said at least two bungees in said channel. 
     
     
         4 . The clip of  claim 3 , wherein said closure includes a knob and a screw thread for screwing to said channel by rotating with respect to said channel. 
     
     
         5 . The clip of  claim 4 , wherein said retainer includes a flexible strip rotatably connecting said closure to said channel. 
     
     
         6 . The clip of  claim 5 , further comprising a belt for holding said strap around a waist of a person and wherein said flexible strip is positioned below said channel such that when said belt is worn upright said strip underlies said channel and catches said bungees when they fall out of the channel. 
     
     
         7 . The clip of  claim 2 , wherein said retainer retains said closure within 5 cm of said channel in said open position. 
     
     
         8 . An exercise device comprising:
 a belt including a strap; and   a clip including
 a connector for slidably connecting the clip to said strap and 
 a fastener for reversibly attaching and detaching a elastic tension element to the clip. 
   
     
     
         9 . The exercise device of  claim 8  further comprising:
 a closure for said fastener having a closed position wherein said elastic tension element is prevented from detaching from said fastener and an open position wherein said elastic tension element can be detached from said fastener and 
 a retainer for retaining the closure to the clip in said open position. 
 
     
     
         10 . The device of  claim 9 , wherein said fastener includes a channels sized and shaped to hold at least two bungees. 
     
     
         11 . The device of  claim 10 , wherein said fastener includes a closure configured to fix a position of at least two bungees in said channel and wherein said tension element includes at least one of said at least two bungees. 
     
     
         12 . The device of  claim 11 , further including:
 a second clip moving slideably attached to said strap and reversibly attached to at least two more elastic tension elements length of elastic tension elements.   
     
     
         13 . The device of  claim 11 , wherein said closure includes a knob and a screw thread for screwing to said channel. 
     
     
         14 . The device of  claim 13 , further comprising a clamping jaw rotationally fixed with respect to said channel and sliding axially within said channel wherein said knob is joined to said clamping jaw to move axially with said clamping jaw and said knob rotates with respect to said clamping jaw. 
     
     
         15 . The device of  claim 13 , wherein said knob includes a fully tightened position wherein said at least two bungees are prevented from moving with respect to said channel, a loose position in which the at least two bungees can move longitudinally with respect to the channel but cannot be detached from the channel and an open position in which the at least two bungees can be detached from the channel. 
     
     
         16 . The device of  claim 15 , wherein said retainer includes a flexible strip rotatably connecting said closure to said channel. 
     
     
         17 . The device of  claim 16 , further comprising a belt for holding said strap around a waist of a person and wherein said flexible strip is positioned below said channel such that when said belt is worn upright said strip underlies said channel and catches said at least two bungees when they falls out of the channel. 
     
     
         18 . The device of  claim 11 , wherein said retainer retains said closure within 5 cm of said channel in said open position. 
     
     
         19 . A method of exercising by a user comprising:
 wrapping an exercise belt around a waist of the user; and   moving a first limb of the user while applying a resistance to the first limb by means of a first elastic element attached to a clip in a first position on the belt; and   moving said clip to a second position on the belt and performing a second exercise.   
     
     
         20 . The method of  claim 19 , further compromising:
 attaching a second elastic element to said clip and   simultaneously moving said first limb and a second limb of the user while applying a resistance to the first limb by means of said first elastic element attached to said clip in said first position and while applying a resistance to the second limb by means of the second elastic element attached to said clip in said first position.   
     
     
         21 . The method of  claim 20  wherein said belt includes at least a second clip and at least a third elastic element and a fourth elastic element, said third elastic element and said fourth elastic element attached to said second clip the method further comprising:
 moving a third limb and a fourth limb of the user simultaneously to said moving said first limb and said second limb, while applying a resistance to the third limb by means of said third elastic element and while applying a resistance to the forth limb by means of the forth elastic element. 
 
     
     
         22 . The method of  claim 21 , further comprising independently adjusting a length of said first elastic element and said second elastic element and said third elastic element. 
     
     
         23 . The method of  claim 21 , further comprising independently adjusting a respective length of each of said first elastic element and said second elastic element and said third elastic element and said fourth elastic element. 
     
     
         24 . The method of  claim 21 , further comprising independently adjusting an respective elasticity of each of said first elastic element and said second elastic element and said third elastic element and said fourth elastic element. 
     
     
         25 . The method of  claim 19 , further comprising:
 replacing said first elastic element with a second elastic element while said belt remains on said waist.   
     
     
         26 . The method of  claim 25 , wherein said replacing is with one hand of the user.