An abdominal exercise device includes a frame comprising top, middle, and bottom frame sections. The middle frame section has a curved shape for creating a teeter-totter movement during exercise. The device includes a headrest connected to the bottom frame section, a plurality of connectors for connecting elastic bands to the frame, and an elastic band connected to at least two connectors. The two ends of the elastic band are connected to two straps. The device creates the teeter-totter movement to exercise the abdominal muscles in response to a person lying down in supine position with the back of the head on the headrest and the feet in the two straps, the person applying a downward pressure with the feet to the straps to move the headrest from a resting position, and the person removing the downward pressure to allow the headrest to go back to the resting position.

A kit has an elongate bar connectable to a cable of a pulley cable exercise machine, left hand grip, right hand grip, and a plurality of fasteners that make the left and right hand grips repeatedly, removably attachable to the bar. The bar has a plurality of elongate slots and a plurality of bores, each oriented transverse to a respective slot. Each of the left and right hand grips are freely rotatable in two dimensions and has a connector pivot shaped to be received in any of the slots with a second eyelet aligned with a respective one of the bores. When assembled, a fastener is received in the bore having the second eyelet of the left hand grip and in the bore having the second eyelet of the right hand grip. Each fastener defines a pivot point about which the respective hand grip pivots within the respective slot.

Provided are a bilateral limb coordination training system and a bilateral limb coordination training control method. The bilateral limb coordination training control method includes: detecting, by a force sensor, force information of a three degree-of-freedom bilateral motion mechanism and sending the force information to a main controller; determining, by the main controller, target motion information of the three degree-of-freedom bilateral motion mechanism of a robot according to the force information; and controlling, by the main controller, the three degree-of-freedom bilateral motion mechanism to perform a corresponding motion based on the target motion information and sending training data and running status information generated during training to an upper computer; where a training instruction includes a bilateral non-association motion training instruction, a bilateral flexible-association motion training instruction or a bilateral rigid-association motion training instruction.

A therapeutic exercise device for improving arm mobility and strength is provided. The device can be used by any person but is particularly helpful for infants who suffer from the disease of arthrogryposis. The device includes a base having a first upright leg member and a second upright leg member. The leg members are height-adjustable. The leg members are joined at their upper ends by an upper crossbar member. Preferably, a pair of elastic straps are coupled to the crossbar. The elastic straps can have handles so the infant can reach up and grasp them. The infant can pull downwardly on handles and move the straps. These exercises help infants to improve their strength, range of motion, and sensorimotor development.

An exercise device having a first handle, a second handle, and a cylindrical chamber. The cylindrical chamber is oriented in that the first handle is attached at one end of the cylindrical chamber and the second handle is attached at the other end of the cylindrical chamber. The cylindrical chamber contains a system that facilitates magnetic, tension resistance. Bisecting the surface of the cylindrical chamber, is a knob connected to a fixed component that adjusts the magnetic, tension resistance within the cylindrical chamber.

An exercise machine comprises a motor. The exercise machine comprises a lockable translatable mount. The exercise machine comprises a cable coupled to the motor via the lockable translatable mount. The exercise machine comprises a sensor coupled to the lockable translatable mount. The sensor is used at least in part to determine mount lock state.

A virtual reality (VR) system includes a VR display and a VR movement apparatus that includes hand user interfaces (UIs) and foot UIs that can support the hands, feet, seat, and total weight of a user. The VR movement apparatus allow the user's hands and feet to move in 3-dimensional space that include vertical, lateral, and fore-aft direction movements. A computer running VR software coordinate and synchronizes the VR movement apparatus and the VR display to provide system users with simulated activities in a VR environment.

Disclosed herein are robust disposable alternating tangential flow (ATF) housing and diaphragm pump units and associated methods of manufacturing, testing, wetting, and using the same.

An exercise bar assembly includes a pair of rotating grip assemblies, each including a generally planar frame and a hand grip mounted within the frame for rotation within in the plane of the frame. The rotating grip assemblies are attachable to opposite ends of a center bar assembly along the longitudinal axis of the bar assembly. A plate bar assembly is attachable to each of the rotating grip assemblies opposite the center rod, with the plate bar assembly aligned with the longitudinal axis to form a weight lifting bar. A user-selectable elastic band is engageable between the pair of rotating grip assemblies along the longitudinal axis so that the elastic band resists rotation of each hand grip in each of the rotating grip assemblies. The rotating grip assemblies of the exercise bar assembly allow for the full range of motion of the bicep, and the elastic band creates a resistance exercise through the bicep's full range of motion.

A supporting device for users of a Pilates exercise machine to maintain them at an inclined angle upon the platform or carriage of the exercise machine during use. The device features a body having a bottom adapted for positioning on the moving or stationary carriage of the Pilates machine and an inclining top surface to support the body of the user inclined.