I've recently been learning to skid for fun as appose to a method of stopping. I've started to get pain in my right shoulder when doing it which makes me think I'm not doing it quite right. Since it started I've noticed that when locking my legs the perpetual force feels like it makes it way up my body and into the shoulder. As with any pain I've used it as a sign to stop doing it in the meantime.

My question is, has anyone else had a similar experience? Perhaps you have some advice for what I can try to prevent it?