AlterG ANTI GRAVITY TREADMILL is the walker integrated into a pneumatic technology load-relieving system developed by NASA, called DAP (Different Air Pressure), to reduce the impact on the patient's joints and muscles and to allow protected and safe exercise by eliminating fall risks. AlterG's VIA antigravity walker thus provides patients with a rehabilitation and training experience integrated with intuitive, real-time gait analysis. Absolutely must try! You can do it at the stand in circle, we are waiting for you! We don't make you walk, we make you fly.