Effect of Antigravity Treadmill in Knee Osteoarthritis (AGTreadmill)

An Alter G treadmill (Alter G Pro 200, Alter G Inc, USA) was used to provide training to the patients in the antigravity treadmill group. The Alter G allows the patient to change their body weight from 20% to 100% in 1% increments. The air pressure inside the lower body positive pressure chamber can be adjusted from 0 to 2.0 kilopascal above atmospheric pressure. They are very comfortable to train in for long periods of time and have simple controls for adjusting body weight, speed, and inclination.

Both groups received the same traditional physical therapy program for 12 weeks, three times a week, for 30 min each. The conventional physical therapy treatment consisted of acupuncture transcutaneous electrical nerve stimulation, Hot moist pack, Ultrasound and quadriceps setting