Here are the statistics on youth baseball pitching injuries:
Sources:
Lyman S, Fleisig GS, Waterbor JW, et al. Longitudinal study of elbow and shoulder pain in youth baseball pitchers.Med Sci Sports Exerc.2001;33(11):1803-1810.
Lyman S, Fleisig GS, Andrews JR, Osinski ED. Effect of pitch type, pitch count, and pitching mechanics on risk of elbow and shoulder pain in youth baseball pitchers.Am J. Sports Med2002;30(4):463-468.Olsen SJ 2nd, Fleisig GS, Dun S, Loftice J, Andrews JR. Risk factors for shoulder and elbow injuries in adolescent baseball pitchers.Am. J Sports Med. 2006;34(6):905-912.
Valovich McLeod TC, Decoster LC, Loud KJ, Micheli LJ, Parker JT, Sandrey MA, White C. National Athletic Trainers' Association Position Statement: Prevention of Pediatric Overuse Injuries. J Ath. Tr. 2011;46(2):206-220.
Fleisig G, Andrews J, Cutter G, Weber A, Loftice J, McMichael C, Hassel N, Lyman S. Risk of Serious Injury for Young Baseball Pitchers: A 10-Year Prospective Study.Am. J. Sports Med. 2010;20(10): 1-5.
Kaplan KM, Jobe FW, Morrey BF, Kaufman KR, Hurd WJ. Comparison of Shoulder Range of Motion, Strength, and Playing Time in Uninjured High School Baseball Pitchers Who Reside in Warm- and Cold-Weather Climates.Am.J Sports Med. 2011; 39(2): 320-328.
Shouchen, Dun et. al., A Biomechanical Comparison of Youth Baseball Pitches: Is the Curveball Potentially Harmful?Am.J. Sports Med. 2008;36(4):686-692.
Fortenbaugh D, Fleiseg G, Andrews J. Baseball Pitching Biomechanics in Relation to Injury Risk and Performance.Sports Health: A Multidisciplinary Approach 2009;1:314-320.
Davis, J.T., et. al. The Effect of Pitching Biomechanics on the Upper Extremity in Youth and Adolescent Baseball Pitchers.Am. J. Sports Med. 2009;37(8):1484-1491.
Hyman, Mark, "StudiesShow That the Curveball Isn't Too Stressful for Young Arms [3],"NewYork Times(July 26, 2009).
Posted March 28, 2011
Links:
[1] https://mail.momsteam.com/node/3343
[2] https://mail.momsteam.com/node/3348
[3] http://www.nytimes.com/2009/07/26/sports/baseball/26score.html?scp=1&sq=Mark Hyman curveball&st=cse
[4] https://mail.momsteam.com/sports/baseball/safety/preventing-pitching-injuries-in-youth-baseball