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The Ab Crunch is one of the most common exercises used to strengthen the core abdominal muscle group.
START with your knees bent and your feet flat on the floor. Fold your arms across your chest or hold your hands behind your ears. Do not lock your hands together behind your head.
Use your abs to lift your head and upper torso while keeping your lower back against the floor.
Pause with your shoulder blades a few inches off the floor than slowley return to the starting position using a controlled movement.
Variotions of the Ab Crunch include:
