Lie on your back with your knees bent and your feet flat on the floor (A). Using both hands, pull up one knee and press it toward your chest (B). Tighten the muscles in your belly and pr… See more

Lie on your back with your knees bent and your feet flat on the floor (A). Keep your shoulders firmly on the floor, and slowly roll your bent knees to one side (B). Hold for 5 to 10 secon… See more

Lie on your back with your knees bent and your feet flat on the floor (A). Tighten the muscles in your belly so that your lower back pulls up, away from the floor (B). Hold for five sec… See more

Lie on your back with your knees bent and your feet flat on the floor (A). Keep your shoulders and head relaxed on the floor and tighten the muscles in your belly and buttocks. T… See more

Kneel on your knees and hands (A). Slowly arch your back, as if you're pulling your belly up toward the ceiling as you bring your head down (B). Then slowly let your back and b… See more