Following pitch count guidelines may help young baseball players prevent injuries

"Our research focused on 149 young pitchers ranging in age from 7 to 11 who had no prior elbow pain," commented lead author Toshiyuki Iwame, MD, from Tokushima University in Tokushima, Japan. "We found those who reported elbow pain after the season were associated with pitching numbers beyond current throwing guidelines."

Researchers asked the players to complete a questionnaire after the season, which showed 66 (44.3%) experienced pain. Multivariate analysis showed that throwing more than 50 pitches per day (OR, 2.44; 95% CI, 1.22-4.94), 200 pitches per week (OR, 2.04; 95% CI, 1.03-4.10), and 70 games per year (OR, 2.47; 95% CI, 1.24-5.02), the baselines established by the JSCSM, were risk factors for pain.

"As the demand on young pitchers to play more increases, there is less time for repair of bony and soft tissues in the elbow," commented Iwame. "We hope research like this continues to direct young athletes, parents and coaches to follow pitch limits to prevent injuries."

The study authors noted the player recall bias, reporting of pain detail on the questionnaire, and limited geographical representation were limitations of the research.