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Step 1
Stand with your feet 12 inches apart and your arms on your hips. Tighten your abdominal muscles to pull your pelvis forward and straighten the curve in your lower back.
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Step 2
Take a large step back with your right leg while keeping your weight on your left leg. Don't put your right heel on the floor; instead, bend your right knee until it almost touches the floor. Lean forward as necessary to maintain your balance.
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Step 3
Push yourself up with your left leg and bring your right leg back to its starting position.
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Step 4
Repeat the exercise, stepping back with your left leg. Continue alternating legs, working in sets and resting briefly in between.
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Step 5
Alter the exercise by moving backward several steps instead of returning to the starting position. Combine rear lunges with forward lunges to move back and forth across the floor.








