4 Steps to a Stronger Back

Credit: Jay Sullivan

Straight leg raise

Lie on your back with your left knee bent and left foot on the floor; keep your right leg straight.

Tighten your ab muscles and raise your right leg about 6 inches off the floor; hold for 5 seconds. Slowly lower leg back down, keeping your hips still.

Do 10 to 15 reps, then switch legs and repeat.

Next: Opposite arm & leg lift