A disk-shaped upper body exercise device includes: a disk-shaped body; a drag provision part groove implemented in a circular loop form having a smaller diameter than the disk-shaped body on a top of the disk-shaped body; at least one sensor installed inside or outside the disk-shaped body; a processor installed inside the disk-shaped body, and configured to check at least one of the user's upper body exercise movement, exercise number, and exercise time based on measurement information measured by the at least one sensor, and to generate upper body exercise information; a display installed on a side surface of the disk-shaped body, and configured to provide the upper body exercise information to the user; and a grip portion provided on a bottom of the disk-shaped body, and implemented to enable the user to hold the disk-shaped upper body exercise device with his or her hand.

An exercise apparatus is provided. The exercise apparatus includes a substantially round, hollow element having an exterior surface and an interior cavity, with the round, hollow element having a U-shaped cross-section, the U-shape including two distal ends. The exercise apparatus also includes at least two rims, each rim positioned about a portion of the round, hollow element at each distal end of the U-shape. A spacer member is located between each distal end of the U-shape and between the rims and at least two fasteners extend between both of the at least two rims, the fasteners providing a clamping force to the at least two rims so that the spacer member and both distal ends of the round, hollow element are fixed relative to each other.

A portable, handheld exercise device comprises a spherical outer shell with multiple parallel handles mounted to the outer surface thereof containing a rotating mass therein. An inner shell located within is spaced from but attached to the outer shell. A gyroscopic energy-generating structure (GEGS) is located within the inner shell. The GEGS comprises a rotating disc or a rotating mass configured to simulate a rotating disc. The rotating disc or a rotating mass is powered to spin around a rotational axis orientated in a preselected orientation to the multiple parallel handles. When the one or more handles of the exercise device are held by an individual the spinning characteristics of the rotating disc or mass creates a force against the user's hands. An internal or external controller allows the user to vary the spinning characteristics of the spinning mass and the level and intensity of the resultant exercise provided to the user in counteracting the forces created. Multiple embodiments of the GEGS are provided.

A muscle training apparatus capable of generating a force is disclosed. The muscle training apparatus includes a second support shell, a force-generating unit and an elastic covering unit. The second support shell is spherical and has a second containing space. The force-generating unit is disposed and fixed in the second containing space of the second supporting shell for generating a force. The elastic covering unit covers the second support shell to have a soft surface. The muscle training device can generate a force in a specific direction and intensity by the force-generating unit.

A muscle training apparatus with muscle strength detecting function includes a first supporting shell, a plurality of membrane pressure-sensing units, an arithmetic processing unit and an elastic covering unit. The first support shell is spherical and has a first outer surface and a first containing space. The membrane pressure-sensing unit is disposed on the first outer surface of the first support shell. The arithmetic processing unit is disposed in the first containing space and electrically connected to the membrane pressure-sensing unit. The elastic covering unit covers the first support shell.

An apparatus integrates two gyroscopes into one unit, allowing their forces to unite in such a manner that they work together in balanced harmony. This is achieved by applying a precessional propulsion method of operation to the gyroscopic balance unit to harness balance and direct gyroscopic forces so they flow together and work as a team, developing dual-balanced gyroscopic precession that in turn generates balanced propulsion.

A rotation exercising ball structure includes two shells, two pivot seats, two holding members, a weight unit, a first housing, a second housing, and a PCB (printed circuit board). The two shells are combined together to construct a hollow ball. The weight unit includes a mandrel pivotally connected with the hollow ball, two magnets secured to the mandrel, at least one rotation member connected with the mandrel, and a weight connected with the at least one rotation member. The PCB is electrically connected with a Bluetooth transmission device which is electrically connected with a Hall sensor. When the mandrel is rotated, the Hall sensor detects rotation of the magnets and sends information of rotation of the magnets to the PCB, and the PCB processes and transmits the information to the Bluetooth transmission device.

An upper limbs training device includes a housing, a sleeve ring, and a spinning mass. The housing includes two casings and an annular rail. The casings surround a space. The annular rail is fixed in the space. The sleeve ring is rotatably disposed on the annular rail. The spinning mass includes two shaft portions located at a first and second insertion hole portion of the sleeve ring. Each casing includes a first, second and third protrusion portion. In each casing, the first protrusion portion is located between the second and third protrusion portion. Two recesses are respectively formed between the first and second protrusion portion and between the first and third protrusion portion. The first protrusion portions form a base portion. The annular rail is mounted on the base portion. The second protrusion portions form a first grip portion. The third protrusion portions form a second grip portion.

An upper-limb rehabilitation assisting device includes first and second handles coupled to first and second rotating shafts and rotationally operated by hands on a paralytic limb side and a healthy limb side; first and second biosignal detecting parts that detect first and second biosignals corresponding to the paralytic limb side and the healthy limb side; first and second drive parts that drive the first and second rotating shafts; and a control part that performs a cooperative control of the first rotating shaft and the second rotating shaft. The control part controls the torques of the first and second drive parts at the time of the cooperative control of the first and second rotating shafts the basis of the degree of cooperation between the first and second biosignals.

A handheld bouncing device that is vertically oriented and centrifugally balanced including: (a) an elongated, compressible axle; (b) a planar body having a balanced symmetrical shape and a central aperture, the elongated compressible axle disposed within the central aperture such that a middle section of the elongated compressible axle is rotationally coupled to the planar body, such that the elongated compressible axle protrudes from the central aperture perpendicular to a plane of the planar body.