DESCRIPTIONHang under a pullup bar holding it so your palms face forward and hands have a wide grip (far enough so that your elbows are at 90 degrees when they are level with your shoulders).
Exhale as you pull your body up until your chin is above the bar, focusing on squeezing your shoulder blades together.
Inhale as you slowly lower yourself to starting position. That is one rep.
Then switch your grip so that you are holding the bar with your palms facing inwards, as in a chin-up. Again pull yourself up and slowly lower yourself. That is the second rep.