Abstract: A device for assisting a runner, walker, or jumper comprising an elongated biasing means such as a flexible pole, torsional spring, or coil spring, etc., having a handle at its top end and a shoe extension including a flexible bridge having one end swingably attached to the user's footwear and another end swingably attached to the ground end of the biasing means. The impact of a landing stores energy in the biasing means which is then returned to assist in the movement of running walking or jumping.