Coach and Athletic Director

February 2017

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C O A C H A D . C O M 33 feel a stretch in this position, ensure you have contracted the glute muscles and start with the foot further out in front of the knee. This stretch is crucial for pitchers to improve stride length as they come down the mound. Longer stride lengths improve velocity and place the release point closer to the plate. 4 More flexible hip flexors allow the trunk to remain upright for a little longer around max shoulder external rotation, which allows for greater transfer of energy up through the kinetic chain. This stretch should be performed daily, especially during periods of rapid growth, for maximal injury prevention and performance improvement effect. 3 .Single-leg balance. Balance for baseball players is .crucial, whether they are pitchers or position players. Movements of less than a quarter-inch can make a significant difference for batters and pitchers. There are a multitude of balance apparatuses out there but simple single-leg balance with and without eyes open on a flat or cushioned ground can be incredibly taxing to the individual. Balancing exercise should be functional for a player. For instance, if an athlete is only a position player, it doesn't make sense to emphasize balancing with your knee as high as possible. Similarly, it's less effective to focus on balance positions where the pitcher is in a batting stance with a bat in hand. For pitchers, one of my favorite exercises is to slowly go through the throwing motion, emphasizing ankle, hip and postural control throughout the entire range of motion. I would begin by watching the athlete simulate the throwing motion at normal speed before slowing down in a stepping manner, usually 25 percent increments to find a player's level of stability. If the athlete is having some trouble at 50-percent effort, focus at this speed for a few sessions before slowing down to 25 percent. If we try to make large adjustments initially — starting at 25 percent and moving to 50 percent — the pitcher does not have the neurological control to make the necessary adjustments and often develops additional compensatory changes. 4 .Standing hip abduction with.toes inward. Another .overlooked area is the gluteus medius, the fan-shaped muscle on the side of the hip responsible for lifting the leg to the side and steadying the hip while standing on that leg. This is another muscle that has big implications for hitters and pitchers alike. Hitters with a weaker gluteus medius can have the stance hip drop down with some knee collapse, affecting their ability to make contact and drive the ball with power. A 2015 study demonstrated the importance of hip stability in pitchers, particularly as they come down on the mound, in which the gluteus medius and several scapular stabilizers showed significant activity between foot strike and ball release on the throwing side. 5 An easy way to strengthen this muscle is to stand tall and raise the leg out to the side with the toes turned inward. It's important to keep the toes turned inward throughout the entire motion because it helps to isolate the gluteus medius better than with the foot turned out. Progression often includes an increased number of sets and repetitions and adding resistance bands around the knees or ankles. Baseball and its related training are very time-intensive. Maximizing the effects of these four simple exercises can significantly decrease the risk of injury while drastically improving performance. Corey Dawkins is the practice administration manager at The Micheli Center for Sports Injury Prevention in Massachusetts. Learn more at www.themichelicenter.com. References 1. Muraki T, Yamamoto N, Zhao KD, Sperling JW, Steinmann SP, Cofield RH, An KN. Effect of posteroinferior capsule tightness on contact pressure and area beneath the coracoacromial arch during pitching motion. Am J Sports Med. 2010 Mar;38(3):600-7. 2. Mine K, Nakayama T, Milanese S, Grimmer K. Effectiveness of stretching on posterior shoulder tightness and glenohumeral internal rotation deficit: a systematic review of randomized controlled trials. J Sport Rehabil. 2016 Aug 24: 1-28 [Epub ahead of print]. 3. Umehara J, Hasegawa S, Nakamura M, Nishishita S, Umegaki H, Tanaka H, Fujita K, Kusano K, Ichihashi N. Effect of scapular stabilization during cross-body stretch on the hardness of infraspinatus, teres minor, and deltoid muscles: An ultrasonic shear wave elastography study. Man Ther. 2016 Oct 12 [Epub ahead of print] 4. Sgroi T, Chalmers PN, Riff AJ, Lesniak M, Sayegh ET, Wimmer MA, Verma NN, Cole BJ, Romeo AA. Predictors of throwing velocity in youth and adolescent pitchers. J Shoulder Elbow Surg. 2015 Sep; 24(9):1339-45. 5. Oliver GD, Weimer WH, Plummer HA. Gluteus medius and scapula muscle activations in youth baseball pitchers. J Strength Cond Res. 2015 Jun; 29(6):1494-9. Circle #118

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