Toughest exercises They work on your shoulders biceps chest and back muscles Using a simple homemade pull up bar you can Megadrox perform a variety of pull ups such as: Close grip pull ups Wide grip pull ups Kipping Inward palm pull ups Outward palm pull ups They require considerable amount of shoulder and arm power So if at first you are able to do only Megadrox Reviews one or two or three repetitions do not fret Keep working at it and as your power and stamina increases gradually so will the number of repetitions.