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Related Experiment Videos

Special populations: the referee and assistant referee.

Thomas Reilly1, Warren Gregson

  • 1Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, UK. t.p.reilly@ljm.ac.uk

Journal of Sports Sciences
|June 13, 2006
PubMed
Summary
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Football referees experience significant physical exertion, leading to fatigue. Nutritional strategies are needed to support their physical and cognitive performance throughout matches.

Area of Science:

  • Sports Science
  • Human Physiology

Background:

  • Referees manage player behavior and enforce rules in football.
  • High physical demands are placed on referees and assistant referees during matches.
  • Fatigue is evident in referees towards the end of games.

Purpose of the Study:

  • To examine the physical demands on football referees.
  • To investigate the impact of these demands on referee performance.
  • To highlight the need for nutritional interventions for referees.

Main Methods:

  • Analysis of distance covered by referees and assistant referees.
  • Measurement of mean heart rate and oxygen uptake (VO2max).
  • Estimation of energy expenditure during matches.

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Main Results:

  • Referees cover ~10,000m, with a mean heart rate of 160-165 bpm (80% VO2max).
  • Assistant referees cover ~7500m, with a mean heart rate of 140 bpm (65% VO2max).
  • Energy expenditure exceeds 5600 kJ, with increased energy use due to unorthodox movements.

Conclusions:

  • Football referees face substantial physiological challenges during matches.
  • Existing research has not thoroughly explored nutritional interventions for referee fatigue.
  • Further investigation into nutritional strategies for cognitive performance in late-game stages is required.