Power Tower with Detachable Bench


Sit-up exercise hit your abs hard, helping you to get a toned and ripped abdomen in time for your next visit to the beach or swimming pool. But sit-ups go one step further. Because they involve a greater range of movement and more lifting motion, sit-ups force you to work not just your abdominal muscles, but also the connecting stabilizer muscles, such as your hip flexors and the muscles in your legs and chest.