AIM: The aim of this study was an epidemiological report of the injuries to young soccer players from pretraining centres (12 to 15 years: U12-U15) and training centres (16 to 20 years: U16-U20). METHOD: Over 3 years, 618 injuries were analysed, concerning an average of 137 players per season (66 and 71 players in U12-U15 and U16-U20, respectively). The injuries were diagnosed by a physician. Numerous injury-related information were documented: player, player's age category, date of the injury, site of the injury, injured side, type of injury, circumstances: training vs. match and contact vs non-contact, number of days of play missed, severity, and player's position. RESULTS: The injury rate was higher in matches than in training sessions. Non-contact injuries accounted for 77.0% of the injuries for U12-U15 and 65.6% for U16-U20. The injuries were mainly to the thigh and hip in pretraining players (23.3% and 19.0%, respectively), and to the thigh and ankle in training players (32.1% and 20.3%, respectively). Contact injuries occurred more frequently during matches, presumably because of the higher intensity of play. The analysis of match injuries by position indicated that for U12-U15, during the matches, lateral defenders were injured most often: 30.4%. For U16-U20, axial midfielders and axial defenders were most subject to injuries during the matches (26.6% and 23.1%, respectively). CONCLUSION: These results may help to improve the programming of training. Between the first and third seasons of this study, a decrease in injuries during both matches and training sessions: from 174 to 107 (decrease of 38.5%).
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