It is proven that high velocity pitcher has more dynamic trunk movements than low velocity pitchers (1). More important is when the trunk initiates movement in the pitching delivery. This timing of trunk rotation is critical when it comes to increasing arm speed. Arm...
So you have pain triceps biceps pitching/throwing and it has more than likely been hurting for a while. You are searching the web for answers because you need this pain to go away so you can get back to business. I get it! I was you in my career. When I had pain...