I've recently began lifting weights again. When doing curls, whether it's barbell or dumbbell, my right elbow sometimes likes to try and pull away and point out to my side, once fatigue starts to set in.
What is the cause of this? I always thought my right bicep was a bit stronger than my left, but my only guess is this happens because of bicep weakness.
The only other factor I can think of is I've had quite a few right shoulder dislocations in the past, and had my labrum repaired almost four years ago. Maybe a weaker shoulder could cause this?