Fatigue in soccer: A brief review

Magni Mohr, Peter Krustrup, Jens Bangsbo

Research output: Contribution to journalArticlepeer-review

456 Citations (Scopus)


This review describes when fatigue may develop during soccer games and the potential physiological mechanisms that cause fatigue in soccer. According to time???motion analyses and performance measures during match-play, fatigue or reduced performance seems to occur at three different stages in the game: (1) after short-term intense periods in both halves; (2) in the initial phase of the second half; and (3) towards the end of the game. Temporary fatigue after periods of intense exercise in the game does not appear to be linked directly to muscle glycogen concentration, lactate accumulation, acidity or the breakdown of creatine phosphate. Instead, it may be related to disturbances in muscle ion homeostasis and an impaired excitation of the sarcolemma. Soccer players' ability to perform maximally is inhibited in the initial phase of the second half, which may be due to lower muscle temperatures compared with the end of the first half. Thus, when players perform low-intensity activities in the interval between the two halves, both muscle temperature and performance are preserved. Several studies have shown that fatigue sets in towards the end of a game, which may be caused by low glycogen concentrations in a considerable number of individual muscle fibres. In a hot and humid environment, dehydration and a reduced cerebral function may also contribute to the deterioration in performance. In conclusion, fatigue or impaired performance in soccer occurs during various phases in a game, and different physiological mechanisms appear to operate in different periods of a game.
Original languageEnglish
Pages (from-to)593-599
Number of pages7
JournalJournal of Sports Sciences
Issue number6
Publication statusPublished - Jun 2005


  • high-intensity exercise
  • sprint performance
  • Muscle metabolism


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