Lie on your back with your knees bent, heels on the floor. Inhale and let your stomach rise, then exhale as you take 4 seconds to draw your belly button toward your spine. Hold for 2 seconds, then repeat for 10 to 12 reps. As your core grows stronger, inch your feet farther out in front of you until you can do this move with your legs straight and your back pressed against the floor.
Lean against a wall at 45 degrees, your hands against the wall, arms straight. Punch your left knee toward the wall, your foot nearly skimming the floor. Then drive your leg back to the floor as you move your other knee toward the wall. Pause after one such "stride" and check your angle. Aim for eight to 16 reps.
Stand with one foot on a box or bench, the other on the floor. Push off your front foot with enough force so both feet are in the air. Land in the starting position and repeat. Do two sets of 10 reps with each leg.
Stand in front of a plyometric box, exercise step, or bench. Bend at the knees to lower your body a few inches, then jump up and land with your knees bent and arms straight in front of you for balance. Step back down and repeat for two sets of 10 repetitions.
