A kettlebell may comprise a main body configured to retain one or more removable exercise weights and a handle connected to the main body at two attachment points on a top side of the main body. The main body may have an opening disposed on the top side and between the two attachment points configured to receive the one or more removable exercise weights.

An exercise device is provided having a top face and an open framework body, in which the interior of the body is open, and the faces of the open framework body are defined, at least in part, by hand grips formed at the intersections between the faces of the body. The faces are open between hand grips

A block plate apparatus system, comprising: at least one block plate; a plurality of stackable blocks, wherein the at least block plate is fastened to the plurality of stackable blocks to form a unified stack.

A method is provided for fabricating a unitary element, such as an exercise weight, including a composite material. The method includes providing a plurality of solid fragments including at least one non-thermoplastic material. The method further includes providing a plurality of solid particles including at least one thermoplastic polymer and/or elastomer material, at least 75% of the solid fragments having sizes in a fragment size range from zero to 32 millimeters and at least 75% of the solid particles having sizes in a particle size range from zero to 1.5 millimeters. The method further includes forming a mixture of the plurality of solid fragments and the plurality of solid particles, the mixture including 90% to 20% of the fragments by volume and 10% to 80% of the particles by volume. The method further includes molding or extruding the mixture into a unitary element through the application of heat and/or pressure.

Training equipment includes a hollow shaft having a sidewall defining an internal cavity and at least one polymer material filling at least a portion of the internal cavity. The polymer material may fill the entire internal cavity of the hollow shaft. The polymer material may be a visco-elastic polymer material or polyurethane. A spacer or a filler may fill at least a portion of the internal cavity. A method of making weighted training equipment with a hollow shaft having a sidewall defining an internal cavity may include injecting a curable composition into at least a portion of the internal cavity. The method may further include curing the curable composition into a polymer material.

An exercise apparatus includes at least one resilient member; a first weight connected to a first end portion of the at least one resilient member; a second weight connected to a second end portion of the at least one resilient member, and a holding member connected to a center portion of the at least one resilient member, the center portion being between the first and second end portions. Another exercise apparatus includes a holding member; a first resilient member having first and second end portions, the first end portion being connected to the holding member; a first weight connected to the first resilient member; a second resilient member having first and second end portions, the first end portion being connected to the holding member opposite the first end portion of the first resilient member; a second weight connected to the second resilient member.

An exercise device has a yoke that is joined to a receiver. A detent pin joins a base washer to the yoke. Weights arranged above the base washer are used as a stabilizing support foundation while performing exercise.

A weight plate has an integrally molded center plate including a centrally located bore disposed in the center with an elongated first hand grip and an elongated second hand grip diametrically opposed to each other toward the opposite sides of the center plate. The first hand and second hand grips may have circular cross-sections. The first hand and second hand grip may include an interior perimeter and an exterior perimeter in spaced relation to each other, through which an opening is formed between the interior and exterior perimeter of the center plate so that the fingers and thumb of a user’s hand can be disposed through the opening for sufficient gripping of the weight plate. A mounting member can be passed through the bore for some particular exercises. With many different ways of using, the weight plate is compatible with a number of varied exercises and movements for an individual.

Disclosed is a dumbbell to be used during a weight lifting exercise program. The dumbbell includes a handle assembly and a pair of collars connected at opposite sides of the assembly. First and second sets of weight plates are detachably connected to each other and to the pair of collars. Each weight plate has an electric motor carried in a cavity formed therein. The dumbbell is seated in a portable dumbbell tray which includes a touch activated display at which a user can enter a predetermined weight to be lifted by the dumbbell during his exercise. The dumbbell tray also has a processor and a motor controller by which the electric motors of respective weight plates are selectively activated to cause the weight plates to be connected together to correspond with the weight entered by the user at the display.