A:Answer Hey there! If you have specific questions or concerns about using your products, we highly encourage consulting your physician since he/she has the most knowledge on your personal health records and how our technology will work on your body. NormaTec Recovery Systems are dynamic pneumatic compression systems. They use compressed air to massage the limbs with a sophisticated sequence that works in harmony with the body’s circulatory system. NormaTec’s patented Pulse Technology synergistically combines three distinctive massage techniques to speed the body’s normal recovery process: pulsing, compression, gradients, and distal release. Through these mechanisms, the NormaTec Recovery System maximizes blood flow throughout the body to help with reduced muscle soreness and enhanced circulation throughout your legs, including around your ankle.