Sports Medicine Arm Soreness: What Does It Mean for Baseball Players? By Sports Medicine, February 10, 2016 With spring baseball season underway, and a new summer season around the corner, some players are already showing signs of fatigue with many games left to play. During this time of year, questions often arise about surviving the season, like: What do I do if my arm is sore? When is it OK to throw after my arm has been sore? How many pitches can I throw? When your arm is sore, it’s your body’s way of telling you it has been overworked or over stressed. To some degree, the warning of soreness is OK — as long as you listen to it. Arm #soreness is your body's way of telling you it's overworked - make sure you listen to it! Click To Tweet What Does It Mean When Your Arm Hurts? When we talk about arm soreness, we do not mean severe shoulder pain or sharp pains in the shoulder, neck, or elbow. These could indicate more serious conditions and should be examined by a medical professional. The type of soreness that occurs after throwing is generally caused by over stressing the rotator cuff muscles. Pitching is usually the position that produces a large degree of stress, secondary to the number of throws and the intensity level of each throw. > Learn more about baseball overuse injuries. Why Are Your Arms Sore? The rotator cuff muscles cause rotational acceleration (concentric contraction) of the upper arm to propel the ball. They also slow down the arm after the ball is released, causing an eccentric contraction during deceleration. These motions cause the muscles to become overstretched and sore. Some theorize that this arm soreness is caused by micro-tearing of the muscle tissue; icing after throwing is an attempt to reduce the inflammation process. RELATED: Treating Arm and Shoulder Injuries in Throwing Athletes What to Do If Your Arm Hurts Your arm needs rest after it’s stressed. By stopping the actions that produced the soreness, like throwing, the body heals over time. Continuing to throw compounds the problem, and: Increases the risk of more serious damage to the muscles and joints Reduces power generation Limits performance How much rest for pitchers? Think of it this way — if you ran a marathon on Monday would you run another one on Tuesday? There’s no magic number on how much time is enough to start throwing again. Everyone has a different threshold. The amount of rest time depends on how much stress was induced and how resistant the muscles were to the stress. This resistance can be altered by increasing strength and endurance in the specific muscles used in throwing. How many pitches? Some organizations, like National Little League®, have instituted pitch count rules for various age groups. For example, if you pitch X pitches you must rest X amount of time before pitching again and there are maximums that can be reached. Although this is a good safety measure, it does not account for players that participate in multiple leagues. The best advice is to listen to your body. Don’t overdo it if you’re sore. RELATED: Common Sports Injuries: Baseball Tips for Reducing Arm Soreness Train. Baseball specific training in the off-season, and a maintenance program in season, will help you maintain your strength and stamina. Warm up properly before throwing. Ensure proper throwing technique. Make sure you are throwing with your whole body. Your legs and core have much more power and stamina than your arm, so take advantage of it. Use ice. Icing immediately after extreme throwing can be helpful. Listen to your body. Soreness is your body’s way of telling you it needs some time to recover. Tip: Make sure you are utilizing proper throwing technique to diminish arm soreness. #baseball Click To Tweet Want to learn more about improving your baseball performance? Visit the UPMC Sports Medicine website.