Pull-ups is an upper body compound pulling exercise, the arms must carry and lift the entire weight of the body. Pull-ups will train your muscles in the back, biceps and forearms, so it will enhance your strength of arms. If you make your decision to increase your strength of arms, if you want to break your records of pullups, if you want to do 20 consecutive pullups, follow Pullups Coach, this app is to help you achieving the goal. No matter what level you are in at this moment, just follow…