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Georg Thieme Verlag, International Journal of Sports Medicine, 06(43), p. 512-518, 2021

DOI: 10.1055/a-1594-2739

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The Effects of Match Congestion on Physical Performance in Football Referees

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractWe examined the changes in performance during congested (two matches within a 7-day interval) and non-congested (one match within≥7-day interval) fixtures in 17 elite football (soccer) referees during 181 official matches. External demands comprised 20 GPS-based metrics. Internal load was assessed by heart rate and rating of perceived exertion. Compared to non-congested fixtures, referees decreased their running distance at 21–24 km·h−1 (p=0.027, effect size [ES]=0.41) and > 24 km·h−1 (p=0.037, ES=0.28), the number of sprints (p=0.012, ES=0.29), and distance sprinting (p=0.022, ES=0.29) in congested matches. Most play metrics were lower in congested versus non-congested fixtures with low-to-moderate ES. During the 2nd half of non-congested fixtures, referees covered larger distances at low-speed running (p=0.025, ES=0.47). Match congestion due to officiating two matches less than a week apart caused a notable decrease in match running activity in professional football referees, especially at above 21 km·h−1. These data reiterate the need for specific conditioning and post-match recovery strategies in high-level referees to ensure optimal judgment performance favouring the quality of the competition. Governing bodies should take these outcomes into account when designating referees for a match.