Abstract: An exercising device which can train the user in a particular sport, while simultaneously strengthening the muscles used in that sport. Weights are connected via a cable and pulley mechanism to a slider which slides along a track having a selected length and curvature depending upon the sport of interest. The track is interchangeable thus allowing the device to be used for any number of different sports. A handle attached to the slider enables the sliding means to be pulled along the track by the user.

Abstract: The present invention is a plyometric exercising device which a hand bar for movement in opposite directions by a user, a bar guide which guides the movement of the hand bar, a gas supply and at least one cylinder which has a piston which is disposed within and attached to the bar guide and which is interconnected to gas supply. A switch activates the gas supply and is electrically connected to the gas supply. A switch activating mechanism activates the switch and is attached to the hand bar.