The, um, lower, looser part of my butt takes a beating from this move. Thankfully.
- Lie on the floor with your arms on your sides.
- Lift your feet, bending both knees to 90 degrees so your thighs are perpendicular to the floor.
- Now slowly and quietly tap your left toes to the floor, then your right.
- Alternate tapping feet for one minute.
- If you feel any lower back pain, don't bring your toes all the way down.