I've already mastered leg raises on the floor and I was advised to progress to a harder variation of leg raises which is the hanging knee raises.
The problem is that my shoulders and lats give up before my abs do. So, after about 8 reps of hanging knee raises I give up due to pain in my shoulders and lats despite keeping my shoulders tight.
I can't do pull ups yet but I'm working on it. Can the lack of strength in my lats and biceps cause this issue ? and if not, then, What causes this pain and how can I overcome this issue ?