Abstract: The invention provides a system for aiding a person in stretching his or her muscles, such as a gymnast. The system comprises a trapezoid shaped base having a pair of pivot grooves formed in a top surface thereof to accommodate adjacent ends of a pair of boards. The spacing of the primary base from the floor or other support surface may be varied by using one or more secondary bases. The various components of the system may be arranged or configured to meet the stretching needs of the user or may be arranged to function as a step for step aerobics. The purpose of the muscle stretching trainer system is to allow for the isolation of muscle groups in order to develop flexibility.

Abstract: A vaulting device for use by a gymnast in vaulting comprising a top member connected to a base member, via a rigid control member and a movable pivot, with a plurality of resilient members positioned between the base member and the top member to bias the base member away from the top member. When the top member is compressed toward the base member, the control arm and the movable pivot combine with one another to cause the top member to move longitudinally relative to the base member during compression and expansion strokes of the vaulting device.