Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 54 11 2025 11 29 2480 2489 Zhenfei Li Department of Exercise Prescription, Dongshin University, Naju 58245, Republic of Korea. Seung-Taek Lim 1. College of General Education, Kookmin University, Seoul 02707, Republic of Korea 2. Waseda Institute for Sport Sciences, Waseda University, Saitama 341-0018, Japan Ji-Hoon Cho Department of Exercise Prescription, Dongshin University, Naju 58245, Republic of Korea 2024 10 15 2025 03 01 Background: We aimed to analyze the risk factors for injuries at different sites and tissues during competition and training, and to provide a scientific basis for the development of targeted injury prevention and rehabilitation programs for young athletes. Methods: Overall, 257 Korean youth track and field athletes in elementary, junior high, and senior high schools registered in the 2022 Korean Athletic Association were included in this study. The Pearson correlation coefficient and Contingency coefficient were used to analyze the correlation between injured site, injured tissue, training time per day, and training days per week during competition and training. Results: The lower extremity was the site with the highest injury rate (30.7% in competition vs 43.6% in training), and the ankle and knee had the highest risk of lower extremity injury. Muscles and tendons were the tissues with the highest injury rates (29.6% in competition vs 32.3% in training), and myositis was the main type of muscle and tendon injury. The incidence of injuries to body parts and tissues was higher during training than during competition (P<0.001). Conclusion: The probability and risk factors of sports injuries are different. Athletes with rich experience need correct sports techniques and reasonable exercise loads to avoid sports injuries. Contact and non-contact injuries are also a cause of sports injuries. Therefore, coaches and athletes need to fully understand the background of the injury and provide a scientific basis for the prevention of youth sports injuries. https://ijph.tums.ac.ir/index.php/ijph/article/view/36922 https://ijph.tums.ac.ir/index.php/ijph/article/download/36922/8707