A chair includes a movable part including a seat on which a user sits, a supporting part configured to support the movable part in such a way that the movable part can be moved to the right and to the left; and a restoration unit, which is a biasing member configured to bias the movable part toward the neutral position in the right and the left. The supporting part supports the movable part in such a way that the movable part descends as the movable part is away from the neutral position.

An article of manufacture for providing a lower leg and Achilles tendon exercise device according to the present invention, the exercise device includes a top frame structure having a first plurality of connection hooks about its perimeter, a bottom frame structure oriented in parallel to the top frame structure having a second plurality of hooks about its perimeter, a plurality of vertical support members coupled between the top frame structure and the bottom frame structure, a shoe support member having a plurality of connection hooks positioned about an outer edge, and a plurality of stretchable cords configured to couple the shoe support member to the top frame structure and the bottom frame structure, the stretchable cords coupled to the top frame structure position the shoe support member above the bottom support structure.

Balance measurement systems and methods thereof include at least one measurement device or indicator and an unstable or dynamic device or surface or other balance device. In example forms, the at least one measurement device is generally removably mounted to a portion of the body of a user (and/or to a portion of the balance device) such that the movements and body behavior of a user (and/or the balance device) can be measured as the user attempts to balance on the balance device. According to one example form, the unstable device includes a suspended rope or slackline. According to other example forms, the balance device includes a generally unstable platform.

Disclosed is a device for exercising muscles and balance including a board with a support surface to accommodate at least one person performing a physical exercise, a static support structure, a suspension between the static structure and the board adapted to maintain this latter suspended and raised off the ground and first actuator of the suspension mounted on the static structure, in which the suspension includes elongated flexible elements with a first end connected to the first actuator and a second opposite end connected to the board, the actuator being controllable by a control unit adapted to generate a sequence of activation and deactivation signals to move the suspension and, therefore, to vary the height or the tilt of the board or both.

An article of manufacture for providing a lower leg and Achilles tendon exercise device according to the present invention, the exercise device includes a top frame structure having a first plurality of connection hooks about its perimeter, a bottom frame structure oriented in parallel to the top frame structure having a second plurality of hooks about its perimeter, a plurality of vertical support members coupled between the top frame structure and the bottom frame structure, a shoe support member having a plurality of connection hooks positioned about an outer edge, and a plurality of stretchable cords configured to couple the shoe support member to the top frame structure and the bottom frame structure, the stretchable cords coupled to the top frame structure position the shoe support member above the bottom support structure.

The present invention addresses the technical problem of providing an ankle muscle resistance-training apparatus which induces an angle change of the ankle while the ankle is actively moving, and can improve strength of the ankle muscle by applying resistance force to the ankle movement. To this end, the ankle muscle resistance-training apparatus according to the present invention comprises: a support member; a first movement guiding shaft; an intermediate member; a second movement guiding shaft; a foot support; a first resistance force application part; and a second resistance force application part. The first resistance force application part is linked with the first movement guiding shaft and applies resistance force of an adjustable intensity against the active ankle movement of a user made with respect to the first movement guiding shaft in a state in which the foot is placed on the foot support, and the second resistance force application part is linked with the second movement guiding shaft and applies resistance force of an adjustable intensity against the active ankle movement of a user made with respect to the second movement guiding shaft in the state in which the foot is placed on the foot support.

A multifunctional balance exercise machine comprises a balancing mechanism including loading board, spring, elastic column, and motion-tracking sensor; a first display unit and an electronic control device loaded with motion sensor game program arranged on the exercise equipment; whereby when the fitness user stands on the loading board, the user body weight and the stress applied by feet transmit to the elastic column and the spring via the loading board, cause the elastic column and the spring compressed or stretched, and force the loading board to oscillate, then achieve the effect of balance exercise; furthermore, the motion tracking sensor transmit signal of oscillation data to electronic control device, the processor unit operates the data, and present the image of the motion sensor game via the first display unit to achieve entertaining effect of virtual reality game.

Disclosed is a device for exercising muscles and balance including a board with a support surface to accommodate at least one person performing a physical exercise, a static support structure, a suspension between the static structure and the board adapted to maintain this latter suspended and raised off the ground and first actuator of the suspension mounted on the static structure, in which the suspension includes elongated flexible elements with a first end connected to the first actuator and a second opposite end connected to the board, the actuator being controllable by a control unit adapted to generate a sequence of activation and deactivation signals to move the suspension and, therefore, to vary the height or the tilt of the board or both.

A balance pad includes a base. A plurality of first pillars and a peripheral wall are uprightly disposed on the base. The peripheral wall surrounds the first pillars so that the first pillars are located within the peripheral wall. Thereby, the first pillars reduce the stability of the balance pad to increase the difficulty of doing balance exercise. The peripheral wall surrounds the first pillars, so that the first pillars can abut against the peripheral wall to avoid excessive inclination of the first pillars to cause injury to a user.

The present invention addresses the technical problem of providing an ankle muscle resistance-training apparatus which induces an angle change of the ankle while the ankle is actively moving, and can improve strength of the ankle muscle by applying resistance force to the ankle movement. To this end, the ankle muscle resistance-training apparatus according to the present invention comprises: a support member; a first movement guiding shaft; an intermediate member; a second movement guiding shaft; a foot support; a first resistance force application part; and a second resistance force application part. The first resistance force application part is linked with the first movement guiding shaft and applies resistance force of an adjustable intensity against the active ankle movement of a user made with respect to the first movement guiding shaft in a state in which the foot is placed on the foot support, and the second resistance force application part is linked with the second movement guiding shaft and applies resistance force of an adjustable intensity against the active ankle movement of a user made with respect to the second movement guiding shaft in the state in which the foot is placed on the foot support.