Associations of Sport Participation and Training Volume With Overuse Injuries in Japanese Male Youth Soccer Players: Implications for Early Sport Specialization. - Nakaichi, Naoto; Sugimoto, Dai; Numa, Daisuke; Kotani, Ryosuke; Nakamura, Hayato; Akiyama, Kei; Hirose, Norikazu (Sports Health: A Multidisciplinary Approach, 2025)