AUTHOR=Freire Lucas Albuquerque , Brito Michele Andrade de , Esteves Natã Sant’anna , Tannure Márcio , Slimani Maamer , Znazen Hela , Bragazzi Nicola Luigi , Brito Ciro José , Soto Dany Alexis Sobarzo , Gonçalves Daniel , Miarka Bianca 

TITLE=Running Performance of High-Level Soccer Player Positions Induces Significant Muscle Damage and Fatigue Up to 24 h Postgame

JOURNAL=Frontiers in Psychology

VOLUME=Volume 12 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.708725

DOI=10.3389/fpsyg.2021.708725

ISSN=1664-1078

ABSTRACT=The current study aimed to determine the impact of a soccer game on the creatine kinase (Ck) response and recovery and specific Global Positioning Systems (GPS)-accelerometry derived performance analysis during matches and comparing playing positions. A sample composed by 118 observations of 24 professional soccer teams of Brazil League Serie A was recruited and classified according to playing positions – Left/Right Defenders (D=30, age: 25.2±5.8 yrs., height: 187±5.5cm, weight: 80±5.8kg), Offensive Midfielders (OM=44, age: 25.1±0.2yrs., height: 177±0.3cm, weight: 73±1.2kg), Forwards (F=9, age: 25.1±0.2yrs., height: 176.9±4.3cm, weight: 74.5±2.1kg), Left/Right Wingers (M=23, age: 24.5±0.5yrs., height: 175±1.1cm, weight: 74±4.4kg), and Strikers (S=12, age: 28±0.2yrs., height: 184±1.0cm, weight: 80±1.4kg) . Blood Ck concentration was measured pre, immediately post, and 24h post-game, GPS-accelerometry parameters were assessed during games. Findings demonstrated that Ck concentrations were higher at all post‐game moments when compared to pre‐game, with incomplete recovery markers being identified up to 24h after the game (range: 402-835U/L-1). Moreover, Midfielders (108.6±5.6 m/min) and Forwards (109.1±8.3m/min) had a higher relative distance vs. other positions (100.9±10.1m/min). Strikers [8.2(8.1; 9.05) load/min] and Defenders [8.45(8;8.8) load/min] demonstrated lower load/min than Wingers [9.5(9.2;9.8) load/min], Midfielders [10.6(9.9; 11.67) load/min] and Forwards [11(10.65;11;15) load/min]. These results could be used to adopt specific training programs and recovery strategies after match according to playing positions.