A method of varying a dynamic resistive force during a strength training exercise includes receiving a selection of the strength training exercise from a set of available strength training exercises and obtaining exercise logic for the strength training exercise from computer memory. The exercise logic provides instructions for generating a vector that defines the dynamic resistive force provided at an end effector of a strength training apparatus during the strength training exercise. The method includes determining a real-time geometric arrangement of a plurality of cables coupled to the end effector, generating, based on the real-time geometric arrangement of the plurality of cables and the exercise logic, time-varying operating setpoints for a plurality of actuator assemblies coupled to the plurality of cables, and exerting the dynamic resistive force at the end effector by controlling the plurality of actuator assemblies in accordance with the time-varying operating setpoints.

An exercise machine is disclosed. The exercise machine comprises a pancake motor. The exercise machine comprises a torque controller coupled to the pancake motor. The exercise machine comprises a high resolution encoder coupled to the pancake motor.

A system and a method of treatment using a universal cage creating a coordinate method of exercise. Physical therapy or fitness exercises are provided to a patient through a system of cords, blocks and belts disposed on a plurality of grid panels through a plurality of mounting devices. Placement of the mounting devices on the grid panel is determined by which muscle groups are receiving therapy and the type of movement required. Once the placement for each movement is determined, the coordinates of the mounting device are captured so that the mounting devices can be preset consistently for each therapy session.

A portable exercise device provided includes: a base disc, two pulley assemblies, a support plate, and a fan wheel assembly. A support plate is disposed on the base disc, the two pulley assemblies are provided on the base disc, and the fan wheel assembly is provided on the support plate, so that the fan wheel assembly and the two pulley assemblies are vertically arranged on top of each other, thereby reducing the overall volume. More preferably, because the volume is reduced, the user can arbitrarily move and hang the portable exercise device at the desired position, and because the portable exercise device of the invention can be hung at different positions, which allows the user to train different muscles according to the different positions.

A resistance device includes a resistance source, a winch, a draw rope, a pulley block, a wire management mechanism, a draw wire and a fixed plate. The output end of the resistance source is connected to one end of the winch, and the other end of the winch is pivotably connected to the fixed plate. The wire management mechanism is arranged between the fixed plate and the resistance source. One end of the draw rope is fixedly arranged on the winch, and the other end of the draw rope protrudes out of the wire management mechanism. A bobbin is convexly arranged at an end portion of the other end of the winch. The pulley block includes at least one fixed pulley and at least one movable pulley. The fixed pulley is fixedly arranged on the fixed plate, and the movable pulley is fixedly arranged on the wire management mechanism.

A resistance device includes a resistance source, a winch, a draw rope, a pulley block, a wire management mechanism, a draw wire and a fixed plate. The output end of the resistance source is connected to one end of the winch, and the other end of the winch is pivotably connected to the fixed plate. The wire management mechanism is arranged between the fixed plate and the resistance source. One end of the draw rope is fixedly arranged on the winch, and the other end of the draw rope protrudes out of the wire management mechanism. A bobbin is convexly arranged at an end portion of the other end of the winch. The pulley block includes at least one fixed pulley and at least one movable pulley. The fixed pulley is fixedly arranged on the fixed plate, and the movable pulley is fixedly arranged on the wire management mechanism.

An exercise machine may include a support frame with a first and second column; a plurality of guide members movably mounted along both columns; and at least one attachment detachably mounted onto either column, thereby securing the at least one attachment to the support frame. The at least one attachment may include a first portion; a second portion extending from the first portion; and a locking mechanism extending from the second portion. The locking mechanism may include at least one stationary locking pin received by either column; and a movable locking pin configured to be received by either column. The at least one attachment is detachably mounted onto either column simultaneously with the plurality of guide members, and at least one of the plurality of guide members positions an operative portion of a weight arrangement at a location along the support frame.

A motion training apparatus compact in a height direction is provided. The motion training apparatus includes an operation unit movable in an XY plane, a first actuator mechanism AX which moves the operation unit in an X-axis direction, and a second actuator mechanism AY which moves the first actuator mechanism AX in a Y-axis direction. A first belt included in the first actuator mechanism AX, a first guide rod, a second belt included in the second actuator mechanism AY, a second guide rod, a third belt, and a third guide rod are arranged between a fourth belt and a fifth belt as overlapping in a height direction.

A pulley system for a weight rack includes an overhead pulley unit and a lower pulley unit. The overhead pulley is installed on an overhead crossmember of the weight rack to provide a plate loaded pull-down system. The overhead pulley has a main body and a mounting member recessed into it. A rear sheave is set off from the crossmember by the main body further than a front sheave. The front and rear sheaves support a cable for pull-downs. A lower pulley unit including a front lower body and a rear lower body is attached to a lower crossmember under the front sheave of the overhead pulley. The front lower body includes a sheave to redirect the cable laterally from the overhead pulley and a front face including a footrest and a notch to allow passage of the cable there through.

A resistance exercise apparatus includes a support formation or platform for supporting the bodyweight of a user. The apparatus includes a pulley system with pulleys around which a cable is threaded, as well as a resistance mechanism with a pneumatic actuator connected to the pulley system. The cable has a handle on which the user can exert a muscular load so that the muscular load is transferred by the cable as a tensile load, to the resistance mechanism and the resistance mechanism being configured such that the pneumatic actuator exerts a resistive force against said tensile load.