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Durán Custodio, Roberto Castillo Alvira, Daniel Raya González, Javier Yanci Irigoyen, Javier 2024-04-16T11:14:07Z 2024-04-16T11:14:07Z 2023 Healthcare, 2023, Vol. 11, Nº. 24, 3195 2227-9032 https://uvadoc.uva.es/handle/10324/67183 10.3390/healthcare11243195 3195 24 Healthcare 11 2227-9032 Producción Científica The aims of the study were to analyze the effects of a 12-week maximal strength- training program on injury incidence, injury burden, and physical fitness in semi-professional soccer players and to compare the perceived exertion load and well-being state between injured and non-injured soccer players. Twenty semi-professional male soccer players participated in this study. Participants were randomly allocated to an experimental group (EG, n = 10 players), who performed a maximal strength-training program, or to a control group (CG, n = 10 players), who only performed their regular soccer training. Physical fitness was measured at baseline and after the training program. In addition, the injury incidence, burden, training/match load, and the state of well-being of the players were recorded. The EG showed significant improvements in vertical jumps, change in direction ability, linear sprints, repeated sprint ability, isometric strength (p < 0.003; effect size = 1.78–11.86), and quadriceps–hamstring imbalance in both legs (p < 0.001; effect size = 2.37–3.71) in comparison to the CG. In addition, the EG players showed a significantly (p < 0.05) lower injury burden (p < 0.001, relative risk = 5.05, 95% confidence interval = 3.27–7.79). This study demonstrated the beneficial effects of a 12-week maximal strength-training program on physical fitness attributes and injury burden in semi-professional soccer players. Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación (AEI) y Unión Europea NextGenerationEU/PRTR - (grant (RYC2021- 031072-I)) application/pdf eng MDPI info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2023 The authors Atribución 4.0 Internacional Football Fútbol Sports injuries - Prevention Lesiones deportivas - Prevención Deportes - Accidentes y lesiones Performance Physical fitness Aptitud física Strength training Entrenamiento (Deportes) Health Salud Sports medicine Medicina deportiva Public health 32 Ciencias Médicas 3212 Salud Publica 3204.03 Salud Profesional Is a maximal strength-training program effective on physical fitness, injury incidence, and injury burden in semi-professional soccer players? A randomized controlled trial info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.mdpi.com/2227-9032/11/24/3195 SI