Door Gym
GRIP POSITIONS Basic Workout Reverse Close-Grip Pull-up: (works the lower portion of the latissimus dorsi, the back muscles that wrap around the sides of the upper body. This move also hits the biceps) Lock the Door Gym into your doorway and grab the bar with your palms facing toward you, hands about 6 inches apart. Pull yourself up until the bar is directly under your chin. Hold for a second, t..