A device for isometrical exercise having a strap structure, made up as an integral-piece flexible, inextensible strap (1) folded onto itself starting from the two extremities (1'; 1") thereof abutted at the centre (C) of the strap (1), and fixed onto itself along sewing lengths (3', 3"; 5', 5"; 7', 7"; 9', 9"; 11', 11") staggered at a distance along the strap structure, defining a strap mesh chain, made up of the strap lengths left not sewn, connected by the sewing lengths, including a pair of extreme meshes constituting handle meshes (21', 21"), and at least a pair of intermediate meshes (13A', 13B'; 13A", 13B"; 15A', 15B'; 15A", 15B"; 17A', 17B'; 17A", 17B"; 19A', 19B'; 19A", 19B") constituting opening meshes for inserting a respective foot or hand thereinto (FIG. 1).

Disclosed herein is a stretching device which makes it possible for a user to stretch muscles such as the calf muscles and Achilles tendons. The foothold unit (10) includes a base plate (12), and an inclined foothold (11) disposed above the base plate at a position spaced apart from the base plate. A support pole unit (30) is disposed in a central portion of the foothold unit. The support pole unit includes a lower tubular member (31) fixed to the base plate (12), an upper tubular member (32) disposed in the lower tubular member so as to be adjustable in height, with a handle (36) provided on an upper end of the upper tubular member, and a fastener (33) fastening the upper tubular member to the lower tubular member. The inclined foothold is provided so as to be rotatable with respect to the support pole unit.

Die Erfindung betrifft einen Rollstuhl (1), aufweisend an einem Grundgestell (2) drehbar befestigte Räder (3), eine Sitzfläche (6) sowie ein mit der Sitzfläche (6) verbundenes Rückenlehnenteil (7), wobei die Sitzfläche (6) durch einen Schwenkmechanismus relativ zum Grundgestell (2) bewegbar, insbesondere vor- und zurückbewegbar ist. Erfindungsgemäß ist vorgesehen, dass die Sitzfläche (6) während einer Bewegung etwa parallel zu einer Ausgangsposition ist.

An exercise strap comprises an upper strap and a lower strap. A plurality of loop members are located on the lower strap to allow for handles to be easily removed and replaced on different locations on the lower strap. An adjustment member attached to both the upper strap and the lower strap allows for the overall length of the exercise strap to be adjusted. A strap attachment member attached to the upper strap connects the exercise strap to a suitable mounting mechanism.

A simulator obtains muscle activities and joint contact forces by a computer simulation according to an operating condition for moving a support base of a passive exercise machine. A condition limiting unit finds intermediate conditions corresponding to desirable muscle activities and joint contact forces from muscle activities and joint contact forces obtained with the simulator according to different operating conditions. A motion simulator moves the support base according to the intermediate conditions. A myoelectric measurement device measures myoelectric potential of a subject supported by the support base. An evaluation device selects an operating condition corresponding to a larger muscle activity quantity from measurement results of muscle activity to define it as an operating condition of the passive exercise machine.