Abstract: A full body stretching assist device includes a base, a central support shaft mounted on the base, left and right arm support stretching sections extending outwards therefrom, and left and right leg support stretching sections. The left and right arm support stretching sections each include a shoulder multi-axis joint and an elbow hinge joint, while the left and right leg support stretching sections each include a hip multi-axis joint and a knee hinge. Powered movement devices such as pneumatic, hydraulic, mechanical or other such actuating devices are operatively connected to the left and right arm support stretching sections and the left and right leg support stretching sections for alternatively extending, retracting and pivoting them in response to computer commands from a computing device, thus causing controlled movement to stretch and move arm and leg limbs being supported therein.

Abstract: A free weight assistance and training device includes a base and a generally upright weight support structure mounted on and extending upwards from and over the base. A free weight support bar is connected to a computer-controlled weight tensioning device which is mounted on the base generally adjacent the upright weight support structure, the connection between the free weight support bar and the computer-controlled weight tensioning device consisting of at least two cables movably mounted on the upright weight support structure. The computer-controlled weight tensioning device, the at least two cables and the free weight support bar operatively cooperate with each other such that tensioning force applied by the computer-controlled weight tensioning device via the at least two cables to the free weight support bar controllably decreases the amount of downwards force exerted by the free weight support bar and weights thereon.

Abstract: For enabling weightlifting athletes to rapidly and efficiently improve concentric-type muscular development, exercising apparatus having two shafts provided with motor-driven barbell-tethered cables is adapted to supplement the athlete's total physiological energy with motor-assist poundage. The motor-assists are of the unidirectional type to rapidly and efficiently improve eccentric-type muscular development. Shafts-mounted braking system protect a weary athlete from the contingency of a rapidly descending barbell.