Gymnastic equipment for performing a general squatting motion while remaining in a supine position

摘要

A metal frame 1 carries a pair of nearly horizontal tubular guides 2 and a pair of nearly vertical tubular guides 3. A slide 5 runs on the guides 2 carrying the seat 6 shaped so that the gymnast assumes a supine position while working with the feet against the oscillating footboard 11 of a loaded slide 9 that runs along the guides 3. As the slides 9 and 5 are attached to the same chain 18 in a closed loop, acting on the first produces synchronised movement of the second that makes the alternate extension and bending of the legs physiological. IMAGE