Instructions:

1. Position yourself under a bar or a sturdy horizontal surface that is at chest height.
2. Grab the bar or surface with an overhand grip, slightly wider than shoulder-width apart.
3. Hang with your arms fully extended and your body straight.
4. Pull your chest towards the bar or surface by squeezing your shoulder blades together and bending your elbows.
5. Continue pulling until your chin is above the bar or surface.
6. Lower yourself back down to the starting position with control.
7. Repeat for the desired number of repetitions.