Your back muscles are important not just because you need something sturdy to rest upon when you get to bed at night but also because they power all sorts of subtle body movements, from the power of punches thrown from the hip to how well you perform at pull ups and how strong your overhead throw is. The Homemade Back workout targets all the major muscle groups of your back without forgetting some other, equally important parts of your body.
Extra Credit: 30 seconds rest between sets.
