Opposite Arm and Leg Extension  Bend your left leg, sitting back as far as comfortable. Press your right knee toward the floor, feeling the stretch in your right hip and thigh. Hold for 20 seconds, rise to the starting position, and repeat on the other side. To get a deeper stretch, lean forward from your hips, and press your buttocks back. Do two stretches on each side.  Denise Austin is the author of several books including Sculpt Your Body with Balls and Bands and the host of two Lifetime Television fitness programs.