Abstract: 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.

Abstract: A rotation mechanism of a wrist exerciser is provided. The rotation mechanism includes a sleeve ring, a spinning mass, and a driving assembly. The sleeve ring is rotatable along an annular groove. The sleeve ring includes an annular body and a mount component. The annular body has a first mount portion and a first insertion hole respectively located at two opposite sides of the annular body. The mount component has a second mount portion and a second insertion hole. The second mount portion of the mount component is engaged with the first mount portion. Two shaft portions of the spinning mass are respectively and rotatably located in the first insertion hole and the second insertion hole, allowing the spinning mass to be rotatable. The driving assembly includes a stator fixed to the mount component and a rotor mounted on the spinning mass.

Abstract: A swim training system, a swim data computation method using the same, and a swim training method using the same are provided. The swim training system includes a training device and a processing device. The training device measures a tension in a connecting component which is fastened to a swimmer. The processing device selects a conversion parameter from a conversion parameter table in the processing device according to a swimmer information. Then the processing device performs a conversion between the tension and a swimming speed with the conversion parameter to obtain the swimming speed of the swimmer.

Abstract: A pumpless wearable sphygmomanometer includes a wearable element, a first fluid strip, a second fluid strip and a control module. A first side of the wearable element is for contacting with a wearer. The first and second fluid strips are arranged in parallel on the first side and spaced apart for a predetermined distance. The control module is disposed on the wearable element and includes a first pressure sensing element, a second pressure sensing element and a processing unit. The first and second pressure sensing elements communicate with the first and second fluid strips, respectively, and are configured to sense a first fluid pressure and a second fluid pressure in the first and second fluid strips, respectively. The processing unit is electrically connected to the first and second pressure sensing elements and configured to analyze a difference between the first fluid pressure and the second fluid pressure.

Abstract: A wrist exerciser includes a housing and a gyroscopic member. The housing includes a first cover, a second cover, a supporting portion and a protective assembly. The supporting portion and the protective assembly are disposed between the first cover and the second cover. Two ends of the supporting portion that are opposite to each other are in contact with the first cover and the second cover, respectively. A stiffness of the supporting portion is greater than a stiffness of the protective assembly. The protective assembly includes a rail and a buffer portion that are corresponding to each other. The gyroscopic member includes a ring and a rotor. The ring is slidably disposed on the rail. The rotor includes a ball disposed in the housing and a shaft which penetrates the ball. Two ends of the shaft that are opposite to each other are pivotally connected to the ring.

Abstract: A wrist exerciser including a housing and a gyroscopic member is disclosed. The housing has a rail and a buffer portion. The position of the buffer portion corresponds to the rail. The gyroscopic member is moveably disposed on the rail, and includes a ring and a rotor. The ring is located inside the housing and is slidably disposed on the rail. The rotor includes a ball and a shaft. The ball is located inside the housing. The shaft penetrates through the ball and the two opposite sides of the shaft are connected to the ring for the shaft to rotate relatively to the ring.

Abstract: A wrist exerciser including a housing and a gyroscopic member is disclosed. The housing is structured to include a casing structure, a rail, and one or more channels along a direction of the casing structure, in which the channels penetrate through the casing structure forming an empty space to buffer a force caused by an impact to the housing. The gyroscopic member is moveably disposed at the rail and includes a ring being inside the housing and slidably disposed at the rail; and a rotor being inside the housing and comprising a ball and a shaft, the shaft penetrating the ball, with its two opposite ends connected to the ring for the shaft to rotate relatively to the ring. The housing is structured to absorb an impact force to protect the structure and functionality of the wrist exerciser.

Abstract: A wrist training apparatus includes a housing, a rotation component disposed in the housing, a signal emission assembly and a counter. The rotation component includes a shaft and an annular wrapper wrapping the shaft and including an outer and inner surfaces and receptacle hole extending from the outer to the inner surfaces. A hole wall of the receptacle hole includes a stopper part. The signal emission assembly is disposed in the receptacle hole and includes a holding cover disposed in the receptacle hole and including a first holding structure in the receptacle hole and a second holding structure protruding from the inner surface and a signal emission device. The first and second holding structures are leaned against the stopper part and inner surface respectively. The signal emission device is disposed in the holding cover. The counter is disposed in the housing and senses signals from the signal emission device.

Abstract: A wrist training ball includes a housing, a rotating body rotatably disposed in the housing, a magnetic component and an information display and detecting module. The magnetic component, disposed at the rotating body, spins with the rotating body. The information display and detecting module, disposed at the housing, includes a sensing unit, a rectifying unit, a signal transforming unit and a processing unit. The sensing unit generates an induced current when the rotating body is spun. The rectifying unit, electrically connected to the sensing unit, rectifies the induced current into an operating power. The signal transforming unit, electrically connected to the sensing unit, transforms the induced current into a motion datum. The processing unit, electrically connected to the rectifying unit and the signal transforming unit, receives the operating power for operation and processes the motion datum to determine a relative motion relationship between the rotating body and the housing.

Abstract: A low noise wrist strength training ball includes a case, a sleeve ring, a rotary body and a magnetic element. The sleeve ring is slidably disposed inside the case and is adapted for sliding relative to the case. The rotary body includes two protruding shafts opposite to each other. The two protruding shafts are pivotally connected to the sleeve ring and are adapted for rotating relative to the sleeve ring. The magnetic element is disposed in the sleeve ring and corresponds to one of the two protruding shafts. The magnetic element is adapted for magnetically attracting the one of the protruding shafts to press against the sleeve ring.

Abstract: A wrist training apparatus includes a housing, a rotation component disposed in the housing, a signal emission assembly and a counter. The rotation component includes a shaft and an annular wrapper wrapping the shaft and including an outer and inner surfaces and receptacle hole extending from the outer to the inner surfaces. A hole wall of the receptacle hole includes a stopper part. The signal emission assembly is disposed in the receptacle hole and includes a holding cover disposed in the receptacle hole and including a first holding structure in the receptacle hole and a second holding structure protruding from the inner surface and a signal emission device. The first and second holding structures are leaned against the stopper part and inner surface respectively. The signal emission device is disposed in the holding cover. The counter is disposed in the housing and senses signals from the signal emission device.

Abstract: An electronic auxiliary device is adapted for being joined with a wrist strength training device and wirelessly coupled to an information device, as well as the electronic auxiliary device comprises a device body and a function device. The device body has an auxiliary unit and is adapted for being joined with the wrist strength training device. The function device is disposed inside the device body. The function device is capable of acquiring the exercise information and transmitting the exercise information to the information device wirelessly, so as to compute the exercise information by the information device or to interact with the information device through the exercise information. Therefore, the wrist strength training device has both training and entertaining effects.

Abstract: A wrist exerciser with a handle and multiple hold positions includes a first exercise ball body and a handle. The first exercise ball body has a first opening, a rotor, and a first hold position for driving the rotor to rotate. The first opening is disposed at a side of the first exercise ball body. The rotor is disposed inside the first exercise ball body. The handle is connected to the other side of the first exercise ball body where the first opening is disposed. The handle is coaxially corresponding to the first opening, and has a second hold position for driving the rotor to rotate, so as to provide multiple hold modes for a user to carry out wrist exercise modes of different postures, thereby increasing interests and enhancing comprehensiveness of forearm muscle exercises.

Abstract: An exemplary housing of a wrist exercising device includes a first cover, a second cover and a fixing ring. The first cover has a first bowl part and a first annular joining part. The first bowl part has a first opening end, and the first annular joining part extends from the first opening end. The second cover has a second bowl part and a second annular joining part. The second bowl part has a second opening end, and the second annular joining part extends from the second opening end. The fixing ring joins the first and second annular joining parts. A wrist exercising device using the housing is also provided.

Abstract: A housing of a wrist exercising device includes a first cover, a second cover and a fixing ring. The first cover has a first opening end and a first joining portion. The first joining portion includes a first annular bottom wall extending outside from the first opening end and a first annular side wall surrounding the first annular bottom wall. The second cover has a second opening end and a second joining portion. The second joining portion includes a second annular bottom wall extending outside from the second opening end and a second annular side wall surrounding the second annular bottom wall. The fixing ring wraps the first joining portion and the second joining portion which are joined with each other. A wrist exercising device using the housing is also provided.

Abstract: A wrist exerciser with a handle and multiple hold positions includes a first exercise ball body and a handle. The first exercise ball body has a first opening, a rotor, and a first hold position for driving the rotor to rotate. The first opening is disposed at a side of the first exercise ball body. The rotor is disposed inside the first exercise ball body. The handle is connected to the other side of the first exercise ball body where the first opening is disposed. The handle is coaxially corresponding to the first opening, and has a second hold position for driving the rotor to rotate, so as to provide multiple hold modes for a user to carry out wrist exercise modes of different postures, thereby increasing interests and enhancing comprehensiveness of forearm muscle exercises.

Abstract: A light-emitting control circuit and a wrist training ball using the same are described. The wrist training ball includes a light-emitting device. The light-emitting device includes an electricity generating circuit and a light-emitting control circuit. The electricity generating circuit generates electric power by rotational kinetic energy of the wrist training ball and outputs the electric power to the light-emitting control circuit. The light-emitting control circuit includes first and second light-emitting elements.