In one example, an exercise apparatus comprises: a shaft; a roller wheel mounted on and rotatable around the shaft; a first pair of gripping members formed on two opposite ends of the shaft; a second pair of gripping members, each of the second pair of gripping members being formed on the shaft between one of the first pair of gripping members and the roller wheel; and a wall-mounting device connected to the shaft, the wall-mounting device being configured to be mounted on a wall above a top portion of a door frame to suspend the second pair of gripping members and the roller wheel in a space below the top portion of the door frame while the first pair of gripping members is in contact with two side portions of the door frame.

In one example, an exercise apparatus comprises: a shaft; a roller wheel mounted on and rotatable around the shaft; a first pair of gripping members formed on two opposite ends of the shaft; a second pair of gripping members, each of the second pair of gripping members being formed on the shaft between one of the first pair of gripping members and the roller wheel; and a wall-mounting device connected to the shaft, the wall-mounting device being configured to be mounted on a wall above a top portion of a door frame to suspend the second pair of gripping members and the roller wheel in a space below the top portion of the door frame while the first pair of gripping members is in contact with two side portions of the door frame.

A seated exercise system is provided having a pair of sliders devices, each slider device including a body portion having a continuous side wall and a support surface. The support surface is sized and shaped to receive a foot of a user. A floor portion configured to slide on a floor surface during operation is provided. A grip portion is attached to the support surface, wherein the grip portion is constructed from a traction material providing traction to the foot during operation. Motion tracking components configured to detect movement data of the foot and during operation are provided. At least one slider of the pair of floor sliders is configured to communicate the detected movement data to the other slider; and, wherein at least one slider of the pair of floor sliders includes a wireless communication device configured to send the detected movement data a computerized device such that the detected movement data is available to the user.

A seated exercise system is provided having a pair of sliders devices, each slider device including a body portion having a continuous side wall and a support surface. The support surface is sized and shaped to receive a foot of a user. A floor portion configured to slide on a floor surface during operation is provided. A grip portion is attached to the support surface, wherein the grip portion is constructed from a traction material providing traction to the foot during operation. Motion tracking components configured to detect movement data of the foot and during operation are provided. At least one slider of the pair of floor sliders is configured to communicate the detected movement data to the other slider; and, wherein at least one slider of the pair of floor sliders includes a wireless communication device configured to send the detected movement data a computerized device such that the detected movement data is available to the user.

An exercise machine handle system for providing a gripping structure that substantially surrounds a stationary or movable exercise platform. The exercise machine handle system generally includes a stationary or movable exercise platform and a perimeter handle surrounding the exercise platform. A space is formed between an outer edge of the exercise platform and an inner edge of the perimeter handle that allows a plurality of fingers of an exerciser to extend through.

A portable lower limb therapy device having a support base and a force transfer system. The support base includes an exterior surface suitable to slide on smooth surfaces and an interior surface suitable to receive and conform to a foot of a user. The force transfer system embodied through one or two cords integrated with the support base and operates to transfer force applied behind and above the foot of a user that is in the support base to the support base. The portable lower limb therapy device may be used with a wearable anchor that is attachable to the thigh of the user of allows for the cord or cords to be fixed in place for the performance of static progressive stretch therapy motions without requiring ongoing manual force.

An exercise machine support system for providing increased versatility including inclination or declination of an exercise surface, a reduction in the overall length and width of the exercise machine, and an enhanced user interface which reduces the risk of injury. The exercise machine support system generally includes a cantilevered exercise machine which is adapted to have a variable angle of incline or decline with respect to a horizontal ground surface. The exercise machine will generally include a base and a support which extends between the base and the exercise machine. The upper end of the support is connected to the exercise machine by a first pivot such that the exercise machine pivots about the support. An adjustment device may be utilized to pivot the exercise machine and thus adjust its angle of incline. Various types of adjustment devices are disclosed, including an actuator, ratchet-and-pawl, gears, and cam.

A weight sled for fitness training that uses a plurality of resistance mechanisms to allow for adjustment of resistance. Depending on the configuration, wheel skid or slippage control may be provided by electronic monitoring of the angular velocity of one or more wheels and electronic adjustment of the resistance of any skidding or slipping wheels, bias correction and directional control may be provided by using a plurality of resistance mechanisms via differential adjustment of the resistance of the plurality of resistance mechanisms, and differential adjustment of the resistance mechanisms may be used to manually or automatically offset a directional bias in the sled, ground surface, or the athlete's abilities to keep the sled moving in a linear motion, and to prevent wheel skid on surfaces with differing friction coefficients.

A weight sled for fitness training that uses a plurality of resistance mechanisms to allow for adjustment of resistance. Depending on the configuration, wheel skid or slippage control may be provided by electronic monitoring of the angular velocity of one or more wheels and electronic adjustment of the resistance of any skidding or slipping wheels, bias correction and directional control may be provided by using a plurality of resistance mechanisms via differential adjustment of the resistance of the plurality of resistance mechanisms, and differential adjustment of the resistance mechanisms may be used to manually or automatically offset a directional bias in the sled, ground surface, or the athlete's abilities to keep the sled moving in a linear motion, and to prevent wheel skid on surfaces with differing friction coefficients.

An exercise system that may be rail-less, frameless, and/or portable is described. The exercise system includes a carriage having a plurality of wheels and a stationary platform. The stationary platform is independent of and separate from the carriage, and the stationary platform is freestanding. At least one tension member having a first end is attached to the carriage and a second end is detachably attached to the platform such that the carriage is movable on a horizontal plane parallel to a ground surface while the stationary platform remains in a fixed position.