Wilke Carolina Franco, Coimbra Cândido Celso, Drummond Filipe R, Drummond Lucas Rios, Campos Helton Oliveira, Kanope Tane, Ramos Guilherme Passos
Faculty of Sport, Technology and Health Sciences, St Mary's University Twickenham, London, United Kingdom.
Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil.
Front Sports Act Living. 2024 Jan 25;5:1164454. doi: 10.3389/fspor.2023.1164454. eCollection 2023.
To compare the external and internal load and subsequent recovery of football players after international tournament matches separated by 48 h vs. 72 h.
A total of 14 male football players from the Brazilian National Team, competing in the 2019 South American Under-20 Championship, participated in the study. Match load was quantified using GPS variables and perceived exertion ratings (1). Additionally, before and 13-15 h after each match, players answered questions about the number of hours and quality of sleep, recovery status, and muscle soreness (0-10) and provided a blood sample for creatine kinase and reactive C-protein analysis. Values of all variables were compared between matches played with 48-h intervals (matches 1-4) and 72-h intervals (matches 5-8).
No significant differences in performance or perceptual parameters were observed between matches ( = 0.136-0.953). However, CK was higher in matches 1-4 compared to matches 5 and 6; and PCR was higher in matches 2 and 3 compared to matches 5 and 6, and in match 4 compared to matches 5 and 8.
After matches with a 48-h rest interval, players showed increased markers of inflammation and muscle damage compared to matches with a 72-h rest interval.
比较间隔48小时与72小时进行国际比赛后足球运动员的外部和内部负荷以及随后的恢复情况。
共有14名来自巴西国家队、参加2019年南美20岁以下锦标赛的男性足球运动员参与了这项研究。使用GPS变量和主观用力程度评级（1）对比赛负荷进行量化。此外，在每场比赛前和比赛后13 - 15小时，球员们回答关于睡眠时间和质量、恢复状态以及肌肉酸痛程度（0 - 10）的问题，并提供血样用于肌酸激酶和反应性C蛋白分析。对间隔48小时进行的比赛（比赛1 - 4）和间隔72小时进行的比赛（比赛5 - 8）中的所有变量值进行比较。
比赛之间在表现或感知参数方面未观察到显著差异（= 0.136 - 0.953）。然而，与比赛5和6相比，比赛1 - 4中的肌酸激酶水平更高；与比赛5和6相比，比赛2和3中的反应性C蛋白水平更高，与比赛5和8相比，比赛4中的反应性C蛋白水平更高。
与间隔72小时的比赛相比，间隔48小时休息进行比赛后，球员们的炎症和肌肉损伤标志物有所增加。
