“I suggest getting [a bar] with various grips because it's good to be able to do all kinds of pull-ups,” says Mosquera. You can get bars that have a close, wide, and neutral grip—all of ...

Chin-ups and pull-ups emphasize muscle groups slightly differently; chin-ups use an underhand grip and are more front-shoulder and bicep-oriented, while pull-ups are more back-body and lats-dominant.

Load a barbell with weight on the ground and stand close to it, so it nearly touches ... with an overhand grip (pull-ups) or an underhand grip (chin-ups), and pull your chest to the bar.