Paddling during surfing strengthens the large muscles near the shoulder, but upward force can be placed on the arm bone and send it upwards to the bones above. This mean muscle impingement can be a big problem for surfers. Paddling can lead to the muscles that apply the upward force being strong and the rotator….
"If you've been injured through no fault of your own you could be entitled to compensation. If you're unsure if you could claim, I recommend you call Accident Advice Helpline."