Stand with your back against a wall and your feet shoulder-width apart. Place your hands on your hips or let your arms hang at your sides, whichever is more comfortable. Keep your head level by focusing directly in front of you. Slide gracefully down the wall into a crouched position with your knees bent to about 90 degrees, as if you were sitting in a chair. If you have trouble going down this far, slide down halfway. Hold for 5 seconds. Slide smoothly up to your starting point. Do 5 repetitions.