What Should a Healthy Throwing Arm Feel Like?
We often assume that a healthy throwing arm should feel perfect. No soreness, tightness, or stiffness. So when our shoulder or elbow starts to ache after throwing, it’s easy to wonder if something is wrong. But that expectation isn’t realistic. A healthy throwing arm isn’t always a pain-free throwing arm.
First, it is important to realize that throwing a baseball, especially when pitching, is stressful on the arm. Humans evolved to throw, but not necessarily to throw a 5oz baseball at nearly 100 mph, 100 times every few days. Every throw places tremendous forces on the shoulder and elbow that are unique to throwing, making it hard to adapt to this outside of actual throwing.
Think about Usain Bolt and sprinting. We can’t expect someone trying to run as fast as humanly possible to finish every training session feeling completely fresh. Pitching is no different. Pitching places enormous stress on the arm, so some soreness is a normal consequence of asking your body to perform at such a high level.
The key question then becomes, is this behaving like normal throwing soreness? I touched upon this before but a general feeling of soreness or fatigue without a clear onset that settles within a day or two is what we’re looking for. This soreness is thought to come from fatigue in the muscles that repeatedly absorb and produce the high forces required for throwing. Once you’re done throwing and given the opportunity to rest, the soreness subsides as you recover. Your arm can be entirely healthy and prepared for the demands of throwing and still have some degree of soreness.
There is going to be some variability in how our arm feels game-to-game due to the many factors that can affect performance. Healthy throwing arms are going to have good days where everything feels smooth and effortless, and healthy throwing arms are going to have bad days. Healthy throwing arms can get sore or feel tight and stiff.
Healthy throwing arms recover.
Setting the right expectations is one of the best ways to avoid unnecessary worry. A healthy throwing arm isn’t one that never gets sore - it’s one that tolerates throwing, recovers well, and is ready to do it again. Don’t judge your arm by how it feels immediately after one outing. Judge it by how it responds over the next day or two, and by the overall trend across weeks of throwing. If your arm isn’t recovering the way you’d expect - or you’re unsure whether what you’re feeling is normal - then that’s a good time to book an assessment. The goal isn’t just to diagnose an injury, but to help you understand what’s normal, what’s not, and how to keep throwing with confidence.
