Stand with feet hipwidth apart, hands on hips and abs contracted. Step into a side lunge with your right leg, bending your knee 90 degrees [a]. Return to starting position and repeat with your left leg. Do 10 lunges, alternating sides, working up to 30. Shift your weight to the right foot and tap your left foot on the floor [b]. Repeat taps for 30 seconds, alternating feet. Repeat this sequence three times.
BENEFITS: Strengthens butt and thighs