Consequences of the SARS-CoV-2 Infection on Anaerobic Performances in Young Elite Soccer Players

Marc Dauty, Jérôme Grondin, Pauline Daley, Bastien Louguet, Pierre Menu and Alban Fouasson-Chailloux
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Marc Dauty: Nantes Université, Service de Médecine du Sport, CHU Nantes, 44093 Nantes, France
Jérôme Grondin: Nantes Université, Service de Médecine du Sport, CHU Nantes, 44093 Nantes, France
Pauline Daley: Nantes Université, Service de Médecine du Sport, CHU Nantes, 44093 Nantes, France
Bastien Louguet: Nantes Université, Service de Médecine du Sport, CHU Nantes, 44093 Nantes, France
Pierre Menu: Nantes Université, Service de Médecine du Sport, CHU Nantes, 44093 Nantes, France
Alban Fouasson-Chailloux: Nantes Université, Service de Médecine du Sport, CHU Nantes, 44093 Nantes, France

IJERPH, 2022, vol. 19, issue 11, 1-9

Abstract: The COVID-19 pandemic required local confinement measures reducing sport practice with possible consequences on the athletes’ performances. Furthermore, anaerobic detraining was underestimated and poorly known in adolescents. This article aimed to assess the effects of SARS-CoV-2 infection and 1-month COVID-19 confinement on jump testing in young elite soccer players despite a 1-month multimodal training program followed by a 1-month soccer retraining period. Thirty-one elite soccer players aged 14 were included; 16 were infected by the SARS-CoV-2 and compared with 15 non-infected elite soccer players before and after 1 month of COVID-19 confinement, and after 1 month of a soccer retraining period. Squat jumps (SJ), countermovement jumps with (CMJs) and without arm swinging (CMJ) and multiple consecutive jumps (stiffness) were used to explore the anaerobic performances. Analysis of variance for repeated measures was used to compare the positive and negative SARS-CoV-2 groups, taking into account the confinement period (low training) and the retraining soccer period. The jump tests were not altered in the positive SARS-CoV-2 group compared to the negative SARS-CoV-2 group after confinement (SJ: 31.6 ± 5.6 vs. 32.7 ± 3.7; CMJ: 34.1 ± 6.9 vs. 34.2 ± 2.6; CMJs: 38.6 ± 6.8 vs. 40.3 ± 3.9; stiffness: 28.5 ± 4.3 vs. 29.1 ± 3.7) and at 1 month of this period (SJ: 33.8 ± 5.5 vs. 36.2 ± 4.6; CMJ: 34.7 ± 5.5 vs. 36.4 ± 3.5; CMJs: 40.4 ± 6.7 vs. 42.7 ± 5.5; stiffness: 32.6 ± 4.7 vs. 34.0 ± 4.3). The SARS-CoV-2 infection had no consequence on anaerobic performances assessed by jump tests in adolescent soccer players. The adolescents’ growth could explain the absence of alteration of jump performances during the COVID-19 confinement. These results can be useful to manage the recovery of the anaerobic fitness after SARS-CoV-2 infection occurring in adolescent athletes.

Keywords: COVID-19; sport; adolescents; lockdown; soccer (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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