There are many muscles that can be a primary target in a pull up. This depends on how the push up is performed.
Lattisimus Dorsi
latissimus dorsi
latissimus dorsi
Latissimus Dorsi.
Latissimus Dorsi.
latissimus dorsi
latissimus dorsi
Latissimus Dorsi
The primary muscles worked when doing a pull-up are the lats. They also secondarily work biceps and the middle of the upper back.
biceps brachiilatimus dorsiLatissimus Dorsi.latissimus dorsi
The traditional pull up is a so-called `compound` exercise, which means it targets most of the muscle groups of the upper body (so basically it trains your entire upper body fairly equally). In my experience though, the muscles which grew tired the most after every pull up workout and in long-term grew the most were the obliques and shoulder muscles.
you pull a muscle when you dont warm up when you are about to exercise..