Lie on your back. Put your hands beneath your buttocks and bend both knees up to your
chest. Extend one leg straight up towards the ceiling. As you bend it with a
pedaling motion, extend the other. Repeat up to 20 times.
Beware Do not
attempt this exercise if you suffer from back pain; consult your doctor about
the exercises that will strengthen your abdominal muscles without damaging your
back.
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