Analysis of physical demands during youth soccer match-play: Considerations of sampling method and epoch length

GREG DONCASTER, RICHARD PAGE, Paul White, Robert Svenson, Craig Twist

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The purpose of this study was to examine the physical match profiles of professional soccer players using 3 and 5 min fixed and rolling averages as well as fixed 1 min averages, with considerations to training prescription. Twenty-nine, professional U23 soccer outfield players competed across 17 competitive matches during the 2017/18 season, equating to a total of 130 separate physical match profiles. Match activities were recorded using global positioning system (GPS) devices with integrated micro-electrical mechanical systems (MEMS), recording total distance (TD), high-speed running (HSR) and metabolic power (MP). For each individual match profile and variable, 1, 3 and 5 min peak, post-peak, and average values were calculated using fixed-time epochs (FIXED) and rolling averages (ROLL). Linear mixed models were employed to examine the differences in the dependent variables as a function of the method of measurement. Results revealed significantly higher peak values, for relative TD, relative HSR and relative MP when employing the ROLL sampling method, in comparison to the FIXED method, for both 3 min and 5 min epoch lengths. Analysis of epoch length revealed significantly higher peak values, across all positions, for relative TD, relative HSR and MP for 1 min epochs, in comparison to 3 min and 5 min epochs. The data offers a novel insight into the appropriate identification of physical demands during youth soccer match-play. Researchers and practitioners should consider the sampling method and epoch length when assessing the physical demands of competitive match-play, as well as when designing and prescribing sport-specific conditioning drills.
Original languageEnglish
Number of pages9
JournalResearch Quarterly for Exercise and Sport
Early online date27 Nov 2019
DOIs
Publication statusE-pub ahead of print - 27 Nov 2019

Keywords

  • Small-Sided-Games
  • GPS
  • Monitoring Performance
  • Conditioning

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