Stand with feet hip-width apart. With your arms straight out in front of you at chest height, lower into a squatting position until your thighs are parallel to the floor or as low as they can go so hips stay in line with knees. Exhale as you rise back up to standing. Repeat for reps. When you're ready for more of a challenge, perform lunges while holding a 5- to 10-pound weight in each hand.
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