Compared to a chin-up, pull-ups better engage the lower trapezius muscles in your back, between your shoulder blades. The overhand grip of the pull-up improves posterior chain activation, says Sobuta.

Chin-ups and pull-ups are different exercises that target the muscles in varying degrees, so it’s not straightforward to say a specific number of chin-ups equals a pull-up.

You can modify this by using a band to assist in the pull, or you can do it from a seated position and use your legs for assistance. Chin-up 1. Get on a bar and come to a dead hang with your palms ...

The chin-up works many different muscles in your upper body—namely, your biceps, delts, and lats, Traugutt says. That means if you can’t do a chin-up, you probably don’t (yet) have the arm ...

Bobby Natoli, a sophomore at Oswego High School, did 53 chin-ups to earn his place in the Guinness World Records for the most chin-ups done in one minute. "He destroyed my record," Bob Natoli says.

Sit-ups are a simple bodyweight exercise. Here's how to perform sit-ups safely, according to experts, and the muscles worked, along with the benefits.