A retractable exercise rack system for efficiently securing an exercise rack against or near a wall when the exercise rack is not in use. The retractable exercise rack system may thus be adjustable between a retracted position against or near the wall, and an extended position which is distally-positioned with respect to the wall. The retractable exercise rack system generally includes a first support member a second support member, with an exercise bar connected between the support members. Wall mounts may be secured to the wall, with the first and second support members being adjustably connected to the wall mounts by linkages, scissor connectors, or arms. Latches and strikers may be utilized to releasably lock the support members in the extended and/or retracted positions. One or both of the support members may include a button for releasing the latches from the strikers.

A chin-up/pull-up exercise apparatus is disclosed. The exercise apparatus includes a frame, an overhead assist module, and a chin bar. The chin bar is connected to the frame. The overhead assist module includes a set of pulleys, a harness, and a counter-weight. The set of pulleys, which is connected to the frame, is positioned vertically above the chin bar. The counter-weight is connected to the harness via a cable traveling on the set of pulleys. The exercise machine enables real, full arm extension pull ups regardless of one's upper body strength with applications for physical therapy; physical exercise training; muscle, tendon, and joint rehabilitation; and upper and lower body strength building.

A chin-up/pull-up exercise apparatus is disclosed. The exercise apparatus includes a frame, an overhead assist module, and a chin bar. The chin bar is connected to the frame. The overhead assist module includes a set of pulleys, a harness, and a counter-weight. The set of pulleys, which is connected to the frame, is positioned vertically above the chin bar. The counter-weight is connected to the harness via a cable traveling on the set of pulleys. The exercise machine enables real, full arm extension pull ups regardless of one's upper body strength with applications for physical therapy; physical exercise training; muscle, tendon, and joint rehabilitation; and upper and lower body strength building.

An exercise assistance device, in order to be able to easily increase exercise intensity, inhibit an injury by applying a load to a user only when the user works out, and effectively improve muscular power of various parts, includes a main body configured to be worn on the body of a user, an elastic band formed in a band shape having elasticity and having a first end configured to be connected to the main body and a second end configured to be connected to a fixed supporting structure, in which the elastic band applies a predetermined load to a user wearing the main body when the user works out at a predetermined distance from the second end of the elastic band fixed to the supporting structure.

A stationary bicycle having a ballet barre coupled thereto is disclosed herein. While the stationary bicycle can have any suitable feature, in some cases, it includes a seat assembly having a seat post that is configured to be selectively raised and lowered with respect to a pedal axis of the stationary bicycle, a seat slide that is coupled to the seat post so as to selectively slide forward and backward with respect to the seat post, and a bicycle seat that is coupled to the seat slide. In some cases, the ballet barre is coupled, in a horizontal orientation, to at least one of: the seat post, the seat slide, and the bicycle seat such that the ballet barre is configured to be selectively raised and lowered with respect to the pedal axis of the stationary bicycle. Other implementations are described.

A stationary bicycle having a ballet barre coupled thereto is disclosed herein. While the stationary bicycle can have any suitable feature, in some cases, it includes a seat assembly having a seat post that is configured to be selectively raised and lowered with respect to a pedal axis of the stationary bicycle, a seat slide that is coupled to the seat post so as to selectively slide forward and backward with respect to the seat post, and a bicycle seat that is coupled to the seat slide. In some cases, the ballet barre is coupled, in a horizontal orientation, to at least one of: the seat post, the seat slide, and the bicycle seat such that the ballet barre is configured to be selectively raised and lowered with respect to the pedal axis of the stationary bicycle. Other implementations are described.

A treadmill has a front or rear set of pulleys and a looped running belt. The pulleys rotate with the movement of the belt, e.g., when a user walks, jogs, or runs on the treadmill. The pulleys are mounted on a rotating roller tube so that the roller tube rotates with the pulleys. The roller tube is mounted on a stationary shaft using bearings on each side and a one-way device that allows the pulleys to rotate in one direction. The rotation direction corresponds to the movement of the top of the belt from the front to the rear of the treadmill. The one-way device prevents the pulleys from rotating in the opposite direction, preventing the top of the belt from moving from the rear of the treadmill to the front. The one-way device may be a sprag clutch. The treadmill may be a motor-less, curved treadmill.

A treadmill has a front or rear set of pulleys and a looped running belt. The pulleys rotate with the movement of the belt, e.g., when a user walks, jogs, or runs on the treadmill. The pulleys are mounted on a rotating roller tube so that the roller tube rotates with the pulleys. The roller tube is mounted on a stationary shaft using bearings on each side and a one-way device that allows the pulleys to rotate in one direction. The rotation direction corresponds to the movement of the top of the belt from the front to the rear of the treadmill. The one-way device prevents the pulleys from rotating in the opposite direction, preventing the top of the belt from moving from the rear of the treadmill to the front. The one-way device may be a sprag clutch. The treadmill may be a motor-less, curved treadmill.

This technology relates generally methods of making and using systems designed to enhance athletic skill development and, more particularly, to methods of maintaining proper foot alignment for certain activities that require agility and consistency. There exists a need for a training device that not only allows a user to dynamically transition back-and-forth between a wider and narrower stance, but also protects the lower extremities of the user when in a narrower stance. In particular, during the process of bringing their legs together, the user's foot and ankle could be injured if the training device is not designed in such a way to ergonomically accommodate the ankle and/or have appropriate cushioning features to insulate the foot and/or ankle from full impact against blunt or sharp surfaces.

An airbag compartment enclosure assembly is disclosed, including a compartment containing an uninflated airbag and a closure device fixed proximate an opening of the compartment. The closure device has an open position allowing expansion of the airbag through the opening and a closed position retaining the uninflated airbag. The closure device includes a first flap extending from a first edge of the opening and a second flap extending from a second, opposing edge of the opening. The first and second flaps are folded over one another in the closed position.