Weighted pull-ups

Instructions

Attach weights to your waist thanks to a belt.
Hang on a pull up bar, hands with an overhand grip (palms above the bar) and more than your shoulder width apart.
Keeping your body straight and without momentum, move your body up with your arms until your chest is near the bar (or a little lower, depending on your morphology).
Hold the position for one second then slowly go back to the starting position, but do not fully stretch the arms.

Muscles