The present disclosure provides a rotary dumbbell. The rotary dumbbell includes a handle part, a base part, weight parts arranged at two ends of the handle part respectively, and a transmission self-locking mechanism and a driven mechanism which are arranged at the two ends of the handle part respectively and abut against the weight parts respectively. The transmission self-locking mechanism includes a transmission assembly and a self-locking ring; the transmission assembly includes a planetary gear transmission mechanism, a first output screw, a long nut and a first screw spline. The driven mechanism includes a decorative ring, a second handle flange, a second transition flange and a driven assembly. The driven assembly includes a second output screw and a second screw spline; the weight parts are provided with weight plates with a dovetail groove structure; and the base part is provided with an unlocking thimble.

An exercise method and an exercise equipment are provided. The exercise method includes: determining an exercise guiding video according to a selected music input/audio signal, wherein the exercise guiding video includes a first exercise guiding video and/or a second exercise guiding video, the first exercise guiding video is a live video automatically generated according to the selected music input/audio signal, the second exercise guiding video is a video previously recorded according to the selected music input/audio signal; generating CGA and special-effect/animated feedbacks corresponding to the music information/audio signal and instruction/cuing in the exercise guiding video; playing the exercise guiding video, the CGA, the special-effect/animated feedbacks and the selected music input/audio signal on a display and computing device; receiving user performance data; displaying interactive feedback data on the display and computing device, according to a result obtained by matching the user performance data with music information/audio signal analyzed from selected music input/audio signal.

A dumbbell facilitating weight adjustment is disclosed. The dumbbell includes a dumbbell rod assembly, multiple counterweight disks, and a base for placing the dumbbell rod assembly and the multiple counterweight disks. The dumbbell rod assembly includes a mandrel, fixed disks and gear rotating disks fixed on the left and right sides of the mandrel, positioning rings and multiple coupling flanges. Rotation interference devices for preventing a rotation of the mandrel are provided in the fixed disks. Unlocking devices for unlocking the rotation interference devices are provided on the base. The rotation interference devices include push rods arranged on front sides and rear sides of the positioning rings, pressing rods arranged on upper parts of the push rods and return springs arranged on upper parts of the pressing rods. The unlocking devices include push pillars arranged on the base and cooperating with the push rods.

The hinged dumbbell holder for a weight bench is configured for use with one or more dumbbells. The hinged dumbbell holder for a weight bench is configured for use with a stanchion of a weight bench. The hinged dumbbell holder for a weight bench attaches to the stanchion of the weight bench. The hinged dumbbell holder for a weight bench forms a supporting structure that elevates the one or more dumbbells above a supporting surface. The hinged dumbbell holder for a weight bench incorporates a mounting bracket, a dumbbell support structure, a hinge, and a rotation assist structure. The stanchion, the dumbbell support structure, the hinge, and the rotation assist structure attach to the mounting bracket. The dumbbell support structure physically receives and elevates the one or more dumbbells. The hinge and the rotation assist structure rotate the dumbbell support structure into a storage position.

An Internet of Thing (IoT) sport device includes a body with a processor, a camera and a wireless transceiver coupled to the processor.

A cradle for supporting an adjustable free weight assembly that includes first and second weight plate sets. End walls and side walls of the cradle define a cavity sized to receive the free weight assembly. The end walls engage plate portions and locking element portions of outermost weight plates of the free weight assembly when received in the cradle. Inboard surfaces of the side walls engage portions of weight plates in at least the first weight plate set to substantially inhibit the first weight plate set from moving vertically or laterally between the side walls. The configuration of the inboard surfaces of the side walls aligns the weight plates in the first weight plate set both vertically and horizontally so that central openings in the weight plates for receiving a selector shaft are substantially concentric.

A exercise equipment includes a weight bar, a plurality of weight plates slidably coupled at two ends portions of the weight bar from two free ends thereof respectively, and a weight bar stopper built-in at each of the end portions of the weight bar to increase a peripheral size of the weight bar at the end portion thereof to block the weight plate being slid out of the free end of the weight bar. When the weight bar stopper is actuated to adjust the peripheral size of the weight bar back to its original size, the weight plate is allowed to be slid in and out the end portion of the weight bar.

An exercise weight support device includes: a spool connected to a belt to suspend the device, the spool being rotatable to enable more or less of the belt to be wound therearound to change the device vertical position of the device; a ratchet wheel drivingly coupled to the spool to control rotation thereof; an outer frame having a cradle and/or a pair of hooks to support a bar of a free weight; a ratchet pawl connected to the outer frame at a fixed location relative thereto; and a trigger handle coupled to the spool to move the spool relative to the ratchet pawl between a non-operating position of the trigger handle causing the ratchet pawl and teeth of the ratchet wheel to engage, and an operating position of the trigger handle causing the ratchet pawl and the teeth of the ratchet wheel to disengage to control rotation of the spool.

A treadmill includes a platform where the platform includes a first side panel and a second side panel spaced apart at a distance from the first side panel, and a gap defined between the first side panel and the second side panel. The treadmill also includes a running deck contained within the platform and exposed within the gap, a first pulley connected to the running deck, a second pulley connected to the running deck opposite the first pulley, a tread belt surrounding the first pulley and the second pulley. A motor is in mechanical communication with at least one of the first pulley or the second pulley. A cover is located over the motor. A scale mechanism is incorporated into the cover over the motor.

A transformable exercise apparatus is disclosed. The exercise apparatus includes base arms parallel to each other, front legs and rear legs extending from the base arms. The exercise apparatus includes top arms, each connecting respective front and rear leg of each base arm. The exercise apparatus presents telescopic members stored in the front legs. The exercise apparatus includes a first table top and a second table top. The second table top includes collapsible legs. The collapsible legs fold and allow for placing the second table top and the first table top over the top arms, thereby transforming the exercise apparatus into a furniture. The second table top demounts and transforms into a workbench. The telescopic members extend and include a pull-up bar at the top, transforming the exercise apparatus into a pull up exercise apparatus. The apparatus may transfer into a leg press and arm press.