Naslov
The Effect of the COVID-19 Lockdown on the Position-Specific Match Running Performance of Professional Football Players; Preliminary Observational Study

Autori
Sekulić, Damir ; Veršić, Šime ; Decelis, Andrew ; Castro- Piñero, Jose ; Javorac, Dejan ; Dimitrić, Goran ; Idrizović, Kemal ; Jukić, Igor ; Modrić, Toni

Izvornik
International journal of environmental research and public health (1660-4601) 18 (2021), 22; 12221, 9

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
SARS-CoV-2 ; match running performance ; soccer ; match demands

Sažetak
The COVID-19 pandemic interrupted professional football in the 2019/2020 season, and football experts anticipate that the consequences of lockdown measures will negatively affect the physical performance of players once competition restarts. This study aimed to evaluate position- specific match running performance (MRP) to determine the effect of COVID-19 lockdowns on the physical performance of professional football players. Players’ MRPs (n = 124) were observed in matches before and after the COVID-19 lockdown in the 2019/2020 season of the highest level of national competition in Croatia and were classified according to player position: central defenders (CD ; n = 42), fullbacks (FB ; n = 20), midfielders (MF ; n = 46), and forwards (FW ; n = 16). The MRPs were measured using Global Positioning System, and included the total distance covered, low-intensity running (≤14.3 km/h), running (14.4–19.7 km/h), high-intensity running (≥19.8 km/h), total accelerations (>0.5 m/s2), high-intensity accelerations (>3 m/s2), total decelerations (less than –0.5 m/s2), and high-intensity decelerations (less than –3 m/s2). The results indicated that, in matches after the COVID-19 lockdown, (i) CDs and FBs featured lower running and high-intensity running (t-value: from 2.05 to 3.51 ; all p < 0.05 ; moderate to large effect sizes), (ii) MFs covered a greater distance in low-intensity running and achieved a lower number of total accelerations, and total and high- intensity decelerations (t-value: from –3.54 to 2.46 ; all p < 0.05, moderate to large effect sizes), and (iii) FWs featured lower high- intensity running (t-value = 2.66, p = 0.02, large effect size). These findings demonstrate that the physical performances of football players from the Croatian first division significantly decreased in matches after the COVID-19 lockdown. A combination of inadequate adaptation to football-specific match demands and a crowded schedule after the competition was restarted most likely resulted in such an effect.

Izvorni jezik
Engleski

Znanstvena područja
Kineziologija

POVEZANOST RADA