RT info:eu-repo/semantics/conferenceProceedings T1 Association Between the Acute to Chronic Workload Ratio and Injury Occurrence in Young Male Team Soccer Players: A Preliminary Study A1 Arazi, Hamid A1 Asadi, Abbas A1 Khalkhali, Farhood A1 Hackney, Anthony C. A1 Granacher, Urs A1 Zouhal, Hassane A1 Boullosa Álvarez, Daniel Alexandre A2 Educacion Fisica y Deportiva K1 Educación Física K1 Training Load K1 Rate Of Perceived Exertion K1 Rolling Averages K1 Weighted Moving Averages K1 Football AB [EN] This study aimed to investigate the relationship between the acute to chronic workloadratio (ACWR), based upon participant session rating of perceived exertion (sRPE), usingtwo models [(1) rolling averages (ACWRRA); and (2) exponentially weighted moving averages(ACWREWMA)] and the injury rate in young male team soccer players aged 17.1 ± 0.7 yearsduring a competitive mesocycle. Twenty-two players were enrolled in this study andperformed four training sessions per week with 2 days of recovery and 1 match day perweek. During each training session and each weekly match, training time and sRPE wererecorded. In addition, training impulse (TRIMP), monotony, and strain were subsequentlycalculated. The rate of injury was recorded for each soccer player over a period of 4 weeks(i.e., 28 days) using a daily questionnaire. The results showed that over the course of thestudy, the number of non-contact injuries was significantly higher than that for contactinjuries (2.5 vs. 0.5, p = 0.01). There were also significant positive correlations betweensRPE and training time (r = 0.411, p = 0.039), ACWRRA (r = 0.47, p = 0.049), andACWREWMA (r = 0.51, p = 0.038). In addition, small-to-medium correlations were detectedbetween ACWR and non-contact injury occurrence (ACWRRA, r = 0.31, p = 0.05;ACWREWMA, r = 0.53, p = 0.03). Explained variance (r2) for non-contact injury wassignificantly greater using the ACWREWMA model (ranging between 21 and 52%) comparedwith ACWRRA (ranging between 17 and 39%). In conclusion, the results of this studyshowed that the ACWREWMA model is more sensitive than ACWRRA to identify non-contactinjury occurrence in male team soccer players during a short period in the competitive season. PB Frontiers Media LK https://hdl.handle.net/10612/19016 UL https://hdl.handle.net/10612/19016 NO Arazi, H.; Asadi, A.; Khalkhali, F.; Hackney, A. C.; Granacher, U.; Zouhal, H.; Boullosa Álvarez, D. A. (2020). Association Between the Acute to Chronic Workload Ratio and Injury Occurrence in Young Male Team Soccer Players: A Preliminary Study. Frontiers in Physiology, 11 DS BULERIA. Repositorio Institucional de la Universidad de León RD 02-jun-2024