Get slimmer and stronger with these easy-to-do power moves.
Strength training doesn't have to mean hefting weights. Doing two sets of these four exercises will work all your major muscle groups in just over 20 minutes.
Kneel on the floor facing a set of stairs. Place your hands on the edge of the bottom step. Lean forward to balance your body between your hands and knees. (Don't lock your elbows.) Hold for 2 minutes, breathing deeply. If you need a break, sit back on your heels. Then resume until the time is up. Repeat twice.
Sit on a step with your feet and knees together. Place your hands on the step behind you, fingers facing forward. Straighten your arms to lift your hips off the step. (Don't lock elbows.) Hold this position for 1 minute. If you need to rest, do so, then resume the up position for the remaining part of the minute once you've recovered. Repeat twice.
Standing in front of the stairs, place your right foot completely on the first step. Bend both legs into a lunge. When your right thigh is parallel to the floor, push off your right foot, then step up with your left, and continue alternating feet for 1 minute.
Stand in front of the stairs with your left hand on a railing for balance. Extend your right leg behind you, toes a few inches off the ground. Bend your right knee slowly, bringing the heel toward your rear, keeping your hips level. Return to the starting position. Do 10 repetitions on each leg, repeating the sequence for 1 minute.