Glenn Fleisig

Research Director, American Sports Medicine Institute

More than ever, athletes from youth to professional sports are suffering devastating serious injuries. As Research Director of the American Sports Medicine Institute, Glenn S. Fleisig Ph.D. is recognized as a leading expert on the understanding and prevention of sports-related injuries. Dr. Fleisig’s career began as an undergraduate mechanical engineering student at MIT, where he conducted research on golf swing biomechanics. Upon graduation, he served as a research intern at the U.S. Olympic Training Center in 1984. The USOC afforded Fleisig the opportunity to develop biomechanical software and testing, as well as to meet up-and-coming sports doctor James Andrews. In 1987, while pursuing his master’s degree from Washington University in St. Louis, Fleisig seized an opportunity offered from Dr. Andrews to head up research at his new institute, ASMI. Dr. Fleisig completed his education with a Ph.D. in biomedical engineering at the UAB.

Much of ASMI’s research under Dr. Fleisig has focused on throwing. Dr. Fleisig is the recognized leader in baseball pitching biomechanics, identifying mechanics for minimizing elbow and shoulder loads while maximizing ball velocity. He has also led studies correlating pitching volume to injuries, leading to pitch count regulations in Little League Baseball and other organizations.

In addition to his work at ASMI, Dr. Fleisig currently serves as chair of the USA Baseball Medical & Safety Advisory Committee, medical committee member for Major League Baseball, safety consultant for Little League Baseball, adjunct faculty at UAB, advisory board member for the National Pitching Association, and board of advisors for MomsTEAM. Dr. Fleisig is also working with Motus Global in the development of consumer technologies for measuring and monitoring an athlete’s biomechanics.

Dr. Fleisig and his research have benefited sports medicine in the United States and other countries. Dr. Fleisig has authored more than 100 scientific articles, book chapters, and books in sports medicine. He has presented at conferences and courses throughout the U.S. and world, and has appeared in countless interviews on television, magazines, newspapers, and internet websites. He has also personally tested the biomechanics of thousands of baseball pitchers and other athletes during the past two decades, providing safety and performance feedback. These evaluations have ranged from youth pitchers to athletes from the majority of Major League Baseball organizations.