Pull-ups are also known as chin-ups. They can be executed in different variations (overhand grip, underhand grip, neutral grip, wide-grip, close-grip, …) and belong, next to push-ups and a couple other exercises, to the supreme disciplines of bodyweight training. Many people who work out think that the number of repetitions are an indicator for masculinity. Of course, this is nonsense, but someone who can do many pullups can be certain to be admired by other sportspeople. Pull-ups are suitable as a back exercise for a wide upper body. Apart from this, pull-ups also engage the muscles of the arms to an extent that should not be underestimated. This means the biceps and the brachioradialis muscle also profit from pull-ups.