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The basis of working is the usage of body weight as a force load and changing the tilt angle of movement surface allows to modify the load value. Kinematics of possible exercises is based on squats with load which can be less or equal body weight. With using additional weights, exercise load can be increased to value over body weight. At this moment, kinematical and structural analyses were done....
Methodology of experimental investigation into fatigue of muscles as well as results obtained during research are presented in the paper. Measurements were carried out on a rehabilitation chair that enables taking measurements of moment of muscle forces during isometric flexion and extension.
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