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Portable exercise apparatus comprising a collapsible support bench having a pair of movably connected leg members at both ends thereof, the leg members being movable between a storage position wherein they are disposed adjacent to each other and an open support position wherein they are disposed at

Portable exercise apparatus comprising a collapsible support bench having a pair of movably connected leg members at both ends thereof, the leg members being movable between a storage position wherein they are disposed adjacent to each other and an open support position wherein they are disposed at an angle to each other with their ends separated. Generally laterally extending and substantially parallel support rods are connected to and extend between the upper and lower portions of the leg members at both ends of the support bench. A seat member is movably connected to one of the adjacent upper support rods and is movable between a storage position wherein it is disposed adjacent and substantially parallel to the leg members when they are in the storage position, and a support position wherein it extends across the upper portions of the leg members when they are in the open position and is supported on the upper support rods. Attachment devices are mounted in spaced relation on the outer portions of the upper and lower support rods. Flexible and resilient resistance exercise members can be removably attached to different or selected attachment devices for the performance of different exercises on the support bench when the leg members and seat member are in the open support position.

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What is claimed is: 1. Portable exercise apparatus comprising: a support bench having a pair of movably connected leg members at both ends thereof, said leg members being movable between a storage position wherein they are disposed adjacent to each other and in substantially parallel relation, and

What is claimed is: 1. Portable exercise apparatus comprising: a support bench having a pair of movably connected leg members at both ends thereof, said leg members being movable between a storage position wherein they are disposed adjacent to each other and in substantially parallel relation, and an open support position wherein the leg members are disposed at an angle to each other with their ends separated; a generally laterally extending support rod connected to and extending between the upper and lower portions of each leg member on one end of said bench and the corresponding leg member on the opposite end of said bench wherein there are two upper support rods and two lower support rods disposed in substantially parallel relation; a seat member movably connected to one of said upper support rods disposed adjacent thereto, said seat member being movable between a first position wherein it is disposed adjacent and substantially parallel to said leg members when they are in said storage position, and a second position wherein it extends across the upper portions of said leg members when they are in said open position and is supported on said upper support rods; and attachment devices mounted in spaced relation on the outer portions of said upper and lower support rods, said attachment devices being constructed to be connected to flexible and resilient resistance exercise members for the performance of different exercises on said support bench when said leg members are in said open support position and said seat member is in said second position. 2. The portable exercise apparatus of claim 1 wherein said attachment devices are generally laterally aligned on said support rods for connection to pairs of resistance exercise members. 3. The portable exercise apparatus of claim 1 wherein said leg members of each pair are pivotally connected at their midportions. 4. The portable exercise apparatus of claim 3 wherein each of said leg members comprises a central angled support plate and leg portions extending outwardly from said support plate and being disposed in offset, substantially parallel relation. 5. The portable exercise apparatus of claim 4 wherein the angled support plates of the adjacent leg members of each pair are pivotally connected together. 6. The portable exercise apparatus of claim 1 wherein said seat member is slidably and pivotally connected to said one upper support rod. 7. The portable exercise apparatus of claim 6 wherein said seat member comprises a plurality of substantially parallel tracks on the lower portion thereof, a plurality of pivot members are rotatably mounted on said one upper support rod and comprise pins that are slidably mounted in said tracks of said seat member, whereby said seat member can be moved from said first position to said second position by sliding it upwardly on said pins until they reach the lower portions of said tracks and then pivoting said seat member to said second position wherein it extends across said leg members and is supported on said upper support rods. 8. The portable exercise apparatus of claim 7 wherein the outer portion of said seat member has a pad thereon. 9. The portable exercise apparatus of claim 7 wherein said pivot members are generally annular in shape. 10. The portable exercise apparatus of claim 1 wherein said attachment devices are in the form of closed loop portions. 11. The portable exercise apparatus of claim 1 wherein said leg members and said support rods are formed of a lightweight, strong material. 12. The portable exercise apparatus of claim 11 wherein said leg members and said support rods are formed of aluminum. 13. The portable exercise apparatus of claim 1, further comprising a portable carrying case for supporting and enclosing said support bench when said leg members are in said storage position and said seat member is in said second position. 14. The portable exercise apparatus of claim 5, wherein said seat member is slidably and pivotally connected to said one upper support rod. 15. The portable exercise apparatus of claim 14 wherein said seat member comprises a plurality of substantially parallel tracks on the lower portion thereof, a plurality of pivot members are rotatably mounted on said one upper support rod and comprise pins that are slidably mounted in said tracks of said seat member, whereby said seat member can be moved from said first position to said second position by sliding it upwardly on said pins until they reach the lower portions of said tracks and then pivoting said seat member to said second position wherein it extends across said leg members and is supported on said upper support rods. 16. A method of performing different exercises on a portable support bench having pairs of movably connected leg members at both ends, said leg members being movable between a collapsed storage position and an open support position, generally laterally extending and substantially parallel support rods connected to and extending between the upper and lower portions of the leg members of each pair, and a seat member movably connected to one of the upper support rods disposed adjacent thereto and being movable between a storage position wherein it is disposed adjacent and substantially parallel to said collapsed leg members and a support position wherein it extends across the upper portions of said leg members and is supported by said upper support rods when said leg members are in said open support position, and attachment devices mounted in spaced relation on the outer portions of said upper and lower support rods; said method comprising: attaching one or more elongated flexible and resilient resistance exercise members to one or more of said attachment devices for the performance of different selected exercises on said support bench when said leg members and said seat member are in said support positions. 17. The method of claim 16 wherein said attachment devices are closed loop portions and are mounted in generally laterally aligned relation on the outer portions of said upper and lower support rods. 18. The method of claim 17 wherein said flexible and resilient resistance exercise members are formed of resistance tubing having a gripping portion at one end thereof and an attachment portion at the other end thereof constructed to be removably attached to one of said attachment devices. 19. The method of claim 18 wherein said resistance tubing is formed of rubber or plastic. 20. The method of claim 17 wherein said resistance exercise members are attached in pairs to laterally aligned attachment devices on the upper or lower support rods.