hey , when im do pull ups im don't fill any muscle work just one muscle work and its the biceps .
so i want to ask if its to all and if you can do a video how to up with the correct muscles in pull ups
He has a video on YT and in the premium about how to perform basic moves including pull-ups.
Reilly is right. Also, pull ups work your back and lats and even your chest, not just your arms. Chin ups on the other hand only really work your biceps.