A resistance device includes a resistance source, a winch, a draw rope, a pulley block, a wire management mechanism, a draw wire and a fixed plate. The output end of the resistance source is connected to one end of the winch, and the other end of the winch is pivotably connected to the fixed plate. The wire management mechanism is arranged between the fixed plate and the resistance source. One end of the draw rope is fixedly arranged on the winch, and the other end of the draw rope protrudes out of the wire management mechanism. A bobbin is convexly arranged at an end portion of the other end of the winch. The pulley block includes at least one fixed pulley and at least one movable pulley. The fixed pulley is fixedly arranged on the fixed plate, and the movable pulley is fixedly arranged on the wire management mechanism.

A support shirt including a shirt body and a pair of shirt body sleeves positioned adjacent to an upper shirt body is provided. The sleeves are attached to the shirt body at sleeve body holes, with each of the sleeves including sleeve reinforcement regions extending at least a portion of the distance from the sleeve holes to an outer edge of the sleeves. The sleeve reinforcement regions extend substantially along a centerline extending longitudinally across the sleeves and the upper sleeve body to stabilize and provide support to the shoulders of a wearer during an upward lifting motion.

A barbell including a bar member, a first side weight assembly and a second side weight assembly. The bar member has a first side sleeve region and a second side sleeve region opposite the first side sleeve region. The first side weight assembly includes a weight surface and extends over the first side sleeve region, and is rotatively coupled to the bar member through an inner and outer slidable engagement surface. The second side weight assembly includes a weight surface and extends over the second side sleeve region, and is rotatively coupled to the bar member through an inner and outer slidable engagement surface. The bar member includes a first and second surface enhanced region, the first surface enhanced region spanning a portion of the central region and the first side sleeve region, and with the second surface enhanced region spanning a portion of the central region and the second side sleeve region.

Disclosed embodiments may include a trampoline scooter device for practicing scooter tricks on a trampoline. The device may include a foam deck with an upper surface and lower surface, where the upper and lower surface both contain a recess. The recesses are designed to receive, respectively, an upper attachment member and a lower attachment member. The upper and lower attachment members and the recesses contain aligned holes to receive connectors. The connectors, or bolts, extend through both attachment members and the deck to secure the deck to the attachment members using nuts. The upper attachment member is connected to the headtube of the scooter via the neck. The headtube contains connections to the column. The column is attached to handlebars containing grips and grip ends.

Disclosed embodiments may include a trampoline scooter device for practicing scooter tricks on a trampoline. The device may include a foam deck with an upper surface and lower surface, where the upper and lower surfaces both contain a first recess. The first recesses are designed to receive, respectively, an upper attachment member and a lower attachment member. The upper and lower attachment members and the recesses contain aligned holes to receive connectors. The upper attachment member is connected to the headtube of the scooter via the neck. The headtube contains connections to the column, which is attached to handlebars containing grips and grip ends. The foam deck may include one or more deck weights at the end of the foam deck opposite the attachment members, either embedded within the deck, or within a second recess of the upper and lower surfaces. The foam deck may include a spine support.

Electronic training and feedback devices have been developed to provide accurate and impartial data or feedback to athletes of club, bat or racket based sports. However, the due to the requirements for these devices to be small and lightweight, their integral power sources typically have a small capacity and therefore require charging often. To charge these devices, the athlete must typically connect the device or their sports equipment to a mains power source after they have finished playing or practicing. However, the athlete may forget to charge their device, and the device may not hold enough charge to last the athlete's next session. Therefore, it is desirable to provide a charging system capable of simply and conveniently charging smart sports equipment. The present invention provides a smart sports equipment charging system (100) including a storage vessel (105) for storage of sports equipment (110), and at least two charging portions (130) within the storage vessel (105), such that sports equipment (110) including a rechargeable power source stored within the storage vessel (105) is chargeable with the respective charging portion (130).

A ball game apparatus in which movements of a coded ball (20) are detected by detector units (100, 206) and an automatic indication of a player's score is given, where data relating to the ball (20) are stored in a database connected to the detector units (100, 206), the data including the code of a ball (20) and a code relating to a player to whom the ball (20) has been allocated, the ball (20) being configured to temporarily store, and to intermittently transfer to the detector units (100, 206) and thence to the database, data relating to the ball's movements. A rechargeable battery (40) is contained within the ball (20), and is arranged to be charged by a battery charging system. Features of the game may be controlled by means of a player's mobile telephone.

The two-part system includes a modified hockey puck and a set of goal units that can be mounted on a hockey goal. Within the puck are light sources, motion sensors, infrared transmitters, and a power source. Within the goal units are light sources, infrared sensors, and a microcontroller. When the goal units are mounted on the hockey goal, the infrared sensors form a detection area through which the puck must pass in order to count as a goal. The infrared transmitter of the puck and the infrared sensors of the goal units communicate with one another, and when an infrared signal is received the microcontroller triggers the light sources mounted to the goal to illuminate and indicate that a goal has been scored. Additionally, both the puck and the goal units are designed to reduce power consumption by switching between a low-energy mode or an active mode of operation.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

A constant tension mechanism of a training machine is provided, including: a base, configured to be connected to a body of the training machine; an elastic member, abutted against the base; and a tension mechanism, including a movable member movably connected with the base and abutted against the elastic member, and at least one tension pulley rotatably disposed on the movable member and configured to urge a belt connected to the body; wherein relative to the base a direction in which the elastic member forces the movable member and a direction in which the at least one tension pulley moves point toward the same direction.