Build power, strength, and speed by improving your athletes explosive movements. The Leg Speed Builder adds versatility, portability, and resistance to any lower body exercise routine. Train specific running movements using this versatile exercise tubing that develops the legs, hips, and glutes. Multiple ring positions on the adjustable foot straps let you isolate and develop the muscles in the lower body. Work one leg or both at the same time. To apply resistance, secure the latex resistance tubing to a sturdy, fixed object or have a partner assist. Each 70-inch tube provides approximately 14 pounds of resistance at 100 percent elongation and 20 pounds at 200 percent elongation. Since 1986, Power Systems’ passion for fitness has been fueled by our customers. Power Systems is committed to ensuring people have the tools to lead active lives with professional-grade products, cutting-edge educational materials, and elite customer service. “Power Your Potential” is the philosophy that guides everything Power Systems stands for.