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Lying rotary torso

Works abs

A. (top left) Lie on your back with legs lifted straight up, arms reaching out to either side and palms down.

B. (lower right) Lower legs a few inches to the left, and hold for 10 seconds. Lower 2 inches more, and hold 10 seconds; repeat 3 more times, ending with legs hovering just above the floor. (Your right hip will lift as you move, so draw your abs in to protect your lower back, and keep your right shoulder down.) Raise legs back to center in 4 (10-second) increments. Repeat on opposite side.

Trainer tip: For variety, try rotating legs left and holding a few inches from the floor for 45 seconds. Return to top position, then repeat on the right side.

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