The Power Harness from Power Systems develops explosive leg drive for improved top speed, acceleration & explosiveness. Increase the rate of force production and develop maximum leg drive for improved acceleration. This harness system uses partner-controlled resistance. It is suitable for short sprints, lateral shuffles, and explosive forward and backward movements. Each unit includes a strong nylon lead, a padded handle constructed of tubular steel, and a waist belt or shoulder harness. The waist belt allows for multi-directional training.