Sit on the bench, put your hands on the edge of the bench, and place your feet hip width apart.
Press your body weight off of the bench so that your arms are straight, then slowly lower your hips below the bench until your shoulders reach elbow height (you do not need to go that low, however), then press your arms straight slowly.
Bench or chair
Triceps brachii, pectoralis minor, posterior deltoids
TIP: Keep your chin up, sternum lifted, and shoulder blades pulled towards each other in order to prevent damage to your rotator cuffs. Your shoulders should only lower to elbow height.
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