What is pull up?

Pull ups are a type of bodyweight exercise that involves pulling oneself up from a hanging position using only the arms and upper body strength. They primarily work the back, shoulders, and arms, as well as the grip and core muscles. Pull ups can be performed using various grips, such as a pronated (overhand) grip, a supinated (underhand) grip, or a neutral grip, and can be scaled by using resistance bands or assisted machines. They are a challenging exercise that can improve strength, muscle definition, and overall fitness.