“Stand comfortably with feet shoulder-width apart and about 2 feet from the wall, with your back against a smooth vertical wall. Slowly slide your back down the wall to assume a position with both your knees and hips at a 90° angle. Move the foot’s distance from the wall if required. Ensure that the feet are flat on the ground, the back flat against the wall, and the knees and hips are at right angles. The knees should be directly above your ankles (rather than over your toes), and the thighs parallel to the ground. The timing starts when the correct position is assumed and is stopped when the subject cannot maintain that position.” Which health component is being tested?
