Pull up mainly trains our upper limb muscles, because if we want to succeed in pull up, we need enough upper limb strength, lumbar and abdominal muscle strength, back strength and arm grip strength. We need to tighten the core, and then force our back and arms to drive the body up. When talking about pull-up, many people may think that only the arm muscles can be practiced. In fact, this is not the case. Pull-up can mainly practice our upper limb muscles.
If we want to make a successful pull-up, we should first tighten our core, then start from the back, and then use the strength of our arms to drive our body up.
If you want to do the above actions, you need to have enough upper limb strength, lumbar and abdominal muscle strength, back strength and arm grip strength. It can be seen that when you practice pull-up, you can exercise the muscles in many places on our body.