Fig. 3.

Loco-Tre. (A) Squat exercise: Legs are opened with the feet a shoulder-width apart, and with toes spread a little, and then the person squats as if sitting. If subjects have knee pain, they should be allowed to stabilize themselves using both hands on a table. (B) One-leg standing exercise: subjects stand on each leg for 30 s with their arms resting. If subjects had balance dysfunction or history of falling, they may be allowed to stabilize themselves using one or both hands on a table.