Hip Extension on Ball

How to Do It

1. Lie on the floor with feet propped on the ball, legs straight.
2. Keeping abs tight, slowly lift your hips off the floor (squeezing the buttocks) until body is in a straight line.
3. Hold for a few seconds and lower, repeating 10 to 15 times.
4. To make it easier, place ball under knees rather than under heels. To make it more difficult, cross your arms across your chest, which will challenge your balance even more.