I usually do pull-ups/chin-ups with weight aid (where you step on something to that helps you elevate during the "pulling" movement), but today I decided to try and do regular pull ups; problem is, my body got "stuck". When I tried to pull up, it was like my body was wondering where the aid was and wouldn't go up.
And it's not like I struggled going up, I literally COULD NOT GO UP. It's like my upper body stops itself from creating the movement.
Help? Please?