Abstract: A weight loading apparatus is provided, comprising a base, a fastener unit, at least one rod, and a locking unit. The base is configured to be placed under a user's foot or footwear. The fastener unit is joined to the base and configured to secure the base to the foot. The at least one rod is joined to the base and configured to be traversed by a perforated weight plate. The locking unit is configured to removably lock the weight plate to the rod.

Abstract: A gripper device for gripping a bar, the gripper device comprising a hook, a protective layer, and a handle. The hook has a first end and a second end, a first inner surface curving around a first axis and facing the first axis, and a first outer surface facing away from the first axis. The inner surface of the hook is shaped to partially curve around a bar parallel to the first axis and grip the bar. The protective layer coats the inner surface of the hook and is configured to contact the bar when the hook grips the bar. The handle is joined to the second end of the hook, such that the handle extends along a second axis located at a predetermined distance from the first axis and being at a first angle with the first.

Abstract: A collapsible push-up bar comprises a hollow main shaft and a leg assembly. The collapsible push-up bar is, for example, a pair of push up bars which are modular and portable. The collapsible push-up bar is used for exercising, gymnastics and calisthenics. The hollow main shaft comprises one or more engagement devices that are disposed on a length of the hollow main shaft. The hollow main shaft is configured to be held by a user during a workout. The leg assembly comprises one or more support legs, insertable within the hollow main shaft and configured to be removably secured to the engagement device within the hollow main shaft.

Abstract: The present invention provides a vest assembly, for wearing around a body of a user performing physical activity. The vest assembly includes a front plate and a rear plate each having a perimeter that includes a plurality of slits. The slits allow for insertion of a plurality of straps. A slit of the front plate tensions one of the straps together with a corresponding slit of the rear plate to fit the vest assembly around the body of the user.

Abstract: The present invention provides a vest assembly, for wearing around a body of a user performing physical activity. The vest assembly includes a front plate and a rear plate each having a perimeter that includes a plurality of slits. The slits allow for insertion of a plurality of straps. A slit of the front plate tensions one of the straps together with a corresponding slit of the rear plate to fit the vest assembly around the body of the user.

Abstract: A collapsible push-up bar comprises a hollow main shaft and a leg assembly. The collapsible push-up bar is, for example, a pair of push up bars which are modular and portable. The collapsible push-up bar is used for exercising, gymnastics and calisthenics. The hollow main shaft comprises one or more engagement devices that are disposed on a length of the hollow main shaft. The hollow main shaft is configured to be held by a user during a workout. The leg assembly comprises one or more support legs, insertable within the hollow main shaft and configured to be removably secured to the engagement device within the hollow main shaft.