Bicycle Crunches
22 sec
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The bicycle crunch is an effective ab exercise, working not only the upper ab muscles, but also the deep abs and the obliques, or the ab muscles found on the sides of your torso.
22 sec
The bicycle crunch is an effective ab exercise, working not only the upper ab muscles, but also the deep abs and the obliques, or the ab muscles found on the sides of your torso.