Nakaichi Naoto, Sugimoto Dai, Numa Daisuke, Kotani Ryosuke, Nakamura Hayato, Akiyama Kei, Hirose Norikazu
Graduate School of Sport Sciences, Waseda University, Tokyo, Japan.
Faculty of Sport Sciences, Waseda University, Tokyo, Japan.
Sports Health. 2024 Sep 4:19417381241275658. doi: 10.1177/19417381241275658.
Sport specialization is associated with increased risk of overuse injuries. However, the effects of sport specialization on the risk of overuse injury may differ by specific sport and sociocultural parameters. This study aimed to determine the associations of sport participation and training volume with previous overuse injuries in Japanese male youth soccer players.
Being highly specialized before the age of 12 years and high training volume relative to participant age would be associated with a history of serious overuse injury.
Cross-sectional study.
Level 3.
Survey data were collected from male youth soccer players (seventh-ninth grade) during midseason of the 2020-2021 academic year. Participants completed a questionnaire regarding their status of sport participation (single- and multisport athletes), weekly sports volume in first- sixth grade and injury history in the previous year. Odds ratio (OR) was calculated to identify associations of specialization and training volume with a history of serious overuse injury.
A total of 841 players (mean age, 13.7 ± 0.9 years) participated; 11% reported serious overuse injury in the previous year, and 64% participated in other sports before the age of 12 years. Players who participated in other sports at <12 years old (OR, 1.79; 95% CI, 1.09-2.94; = 0.02) and those who trained for more weekly hours than their age in fifth to sixth grade (OR, 1.70; 95% CI, 1.07-2.72; = 0.03) had greater odds of reporting serious overuse injuries.
Multisport athletes and high training volume in fifth-sixth grade were associated with previous serious overuse injuries.
Coaches and parents of male youth soccer players should be aware of the increased risk of serious overuse injury participating in multiple sports simultaneously, and youth athletes should adhere to age-appropriate volume recommendations.
运动专项化与过度使用损伤风险增加有关。然而，运动专项化对过度使用损伤风险的影响可能因具体运动项目和社会文化因素而有所不同。本研究旨在确定日本男性青少年足球运动员的运动参与情况和训练量与既往过度使用损伤之间的关联。
12岁之前高度专项化以及相对于参与者年龄的高训练量与严重过度使用损伤史相关。
横断面研究。
3级。
在2020 - 2021学年赛季中期收集男性青少年足球运动员（七年级至九年级）的调查数据。参与者完成了一份关于他们的运动参与状况（单项运动和多项运动运动员）、一至六年级的每周运动量以及上一年损伤史的问卷。计算比值比（OR）以确定专项化和训练量与严重过度使用损伤史之间的关联。
共有841名运动员（平均年龄13.7±0.9岁）参与；11%报告上一年有严重过度使用损伤，64%在12岁之前参与了其他运动。12岁之前参与其他运动的运动员（OR，1.79；95%CI，1.09 - 2.94；P = 0.02）以及在五至六年级每周训练时长超过其年龄的运动员（OR，1.7；95%CI，1.07 - 2.72；P = 0.03）报告严重过度使用损伤的几率更高。
多项运动运动员以及五至六年级的高训练量与既往严重过度使用损伤有关。
男性青少年足球运动员的教练和家长应意识到同时参与多项运动会增加严重过度使用损伤的风险，青少年运动员应遵循适合其年龄的运动量建议。
