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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Front+Physiol 2021 ; 12 (ä): 666593 Nephropedia Template TP
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Running Patterns in LaLiga Before and After Suspension of the Competition Due to COVID-19 #MMPMID33981253
Brito de Souza D; Lopez-Del Campo R; Resta R; Moreno-Perez V; Del Coso J
Front Physiol 2021[]; 12 (ä): 666593 PMID33981253show ga
In the first wave of the COVID-19 outbreak (spring 2020), the first division of professional soccer in Spain (LaLiga) was suspended for 12 weeks as part of the lockdown imposed by the Spanish health authorities. Professional soccer players were confined to home for 8 weeks and then a retraining period of 4 weeks was set before the first competitive match. When competition was resumed, professional soccer teams competed in a congested calendar (11 matchdays in 39 days) while some in-game regulations were altered (up to 5 substitutions, refreshment pauses). The current research presents an analysis of running patterns before suspension and after resumption of LaLiga to determine how the lockdown affected players' physical performance. To aid in this purpose, a pairwise comparison was performed of running patterns of the 2019-2020 vs. 2018-2019 season (i.e., control season). Using a two-way ANOVA (season x matchday), it was found that there was no main effect of the season on total running distance per match (P = 0.288) nor in the distances covered < 14.0 km/h (P = 0.294), at 21.0-23.9 km/h (P = 0.266), and at >/= 24.0 km/h (P = 0.112). Only the distance at 14.0-20.9 km/h was affected by the season (P = 0.019) with a lower running distance on matchday 34 in the 2019-2020 vs. 2018-2019 season. The number of substitutions (from 2.9 to 4.5 substitutions per game; P < 0.001) and match duration (96 vs. 100 min; P < 0.001) significantly increased after resumption respect to the previous season. These data suggest that high-intensity running performance of professional soccer teams was maintained after the resumption of the competition while the alterations likely aided in the in-game regulations facilitated the maintenance of soccer physical performance.