Hi!
I did some calisthenics training before for about two years and when I did hanging leg lifts on single bar( not stall bars) I used to fill pain in the front of my left shoulder but when I used undergrip the pain was gone. Do you have any idea of what this could be? Maybe bicep tendinitis? I still feel little pain there ( I used to train back lever a lot among other things).
Thanks a lot!
Nuno Duarte