Place your feet on both sides of a vertical structure, grab hold of the structure on each side, and lean back. Keep your elbows close to your body as you pull, and squeeze your shoulders together on top of the movement. The closer your feet are to the object (or the further they are past it), the harder the exercise. You should breathe in as you lower yourself, and breathe out as you pull.

Muscle group: Abdominal

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