Single-Leg Lowering- HOW TO DO IT: Lie on your back with arms at your sides, palms down, legs extended. Lift your legs perpendicular to the ground so the soles of your feet face the ceiling. Keeping your legs straight, lower your right leg until it hovers just a few inches off the ground. Your left leg should still be sticking straight up. Don’t point your toes; keep your foot flexed throughout the move. Return your right leg to the top, lower your left leg and repeat.