An exercise system comprises an anchor and at least one extendible tether extending from a mooring on the anchor to a grip end. Each extendible tether is longitudinally movable between an extended configuration and a retracted configuration. At least one sensor alignment arm is movably coupled to the anchor, and a sensor is associated with each sensor alignment arm and extendible tether. The sensor alignment arm carries a first sensor element and the extendible tether carries a second sensor element. Each extendible tether is longitudinally movable relative to its sensor alignment arm and angular movement of the extendible tether relative to the anchor moves the sensor alignment arm to maintain longitudinal alignment between the first sensor element and the second sensor element. The sensor detects movement of the second sensor element past the first sensor element as the extendible tether moves between the extended configuration and the retracted configuration.

A portable and kinetic motion resistance upper body invention that can be used for a variety of exercises. This invention combines dial tension adjustment clutch sheaves, a variable linear tract bearing and a one piece resistance shock-cord, together these core components achieve a unique minimal impact work-out. The multi-motion and changeable adjustments for this invention, result in a wide variety of muscular stimulation and therapeutic exercises that are non-existent in the fitness and health industry. The outcome of the mechanism can be customized for a particular sport requirement or physio and other therapeutic restorations, or even for case specific industrial and robotic counter-balancing controls. This invention is can also be used as a lift-assist device.

Disclosed herein is exercise equipment for strengthening the pelvis, by which the exercise effect of enabling the pelvis, the genitourinary sphincter inside the pelvic cavity, etc. to be strongly contacted and relaxed may be obtained during the exercise of collecting and spreading the knees. The exercise equipment includes: grip parts (110); cylindrical insertion/separation pipes (120); cylindrical support pipes (130); packing parts (140); cylindrical cushion parts (150); side fastening U-shaped plates (160); fastening plate supports (170); a side support connection bar (180); and fastening belts (200). Rotating grips (190) are attached to the bottoms of coupling bolts (B), respectively, by which the side support connection bar (180) connects and fastens the side fastening U-shaped plate supports (170), and the side support connection bar (180) is fastened to the bottom of the cushion part of a chair by using the two fastening belts (200) and coupling bolts (B).

An office chair that is ergonomically configured to allow for the coordination of stretches to the pectoralis minor muscle, trapezius muscle, and scalene muscles to open up the thoracic outlet, release muscle tension, and reinforce proper structure is provided. The stretches may be performed by an average human user while sitting in the office chair throughout the workday. The ergonomically configured chair assembly may have a brace supported by the seatback and extending downwardly therefrom over a left and right shoulder of the seated average human in a cantilevered fashion and an arm restraining device positioned rearward with respect to the rear face of the upstanding seat back.

A ball chair may comprise a chair frame, a ball body and an adjusting unit. The chair frame has a connecting base and a legs base, and a supporting column formed therebetween is configured to achieve a telescopic action thereby adjusting a height of the ball chair. The connecting base is formed in a concave shape to form a housing space therein, and an annular frame is formed at an upper end of the connecting base. The ball body is configured to be coupled on the connecting base of the chair frame, and the annular frame is configured to couple with an outer periphery of the ball body thereby limiting a position thereof. As a result, the ball chair is suitable for different statures of users and enables the users to sit thereon for training or rehabilitation.

Handles for use in exercise apparatus and in lifting apparatus are provided.

A chair for providing support to a user's spine to improve posture and for providing ways for the user to perform exercises. The chair may include a flexible connection that enables a back support to move side to side through a sidebending range of motion of the user. The back support, which may include a flexible chair spine, may be configured to adapt to the curvature of the user's spine when the user is seated in the chair. A seat of the chair may include channels and vents to improve air circulation within the seat.

An exercise apparatus having a pulley, a pair of stabilizing assemblies each configured to couple a front portion of a respective pedal element to each side of the pulley, a looped belt configured to couple the pulley to a resistance assembly, a tension stabilizer configured to maintain a tension of the looped belt on the pulley, and the resistance assembly configured to assert an adjustable resistance to the pedal elements through the looped belt. The exercise apparatus also comprises a resistance band extension for performing additional exercise using resistance bands and a transport mechanism for transporting the exercise apparatus and securing the exercise apparatus to a chair wheel or other structure during exercise.

A system for monitoring use of knee joint flexibility rehabilitation apparatus comprises a knee joint flexibility rehabilitation apparatus, a sensor and a monitor configured to receive and display a signal from the sensor

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.