Caffeine, maximal power output and fatigue.

J. H. Williams, Joseph Signorile, W. S. Barnes, T. W. Henrich

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The purpose of this investigation was to determine the effects of caffeine ingestion on maximal power output and fatigue during short term, high intensity exercise. Nine adult males performed 15 s maximal exercise bouts 60 min after ingestion of caffeine (7 mg.kg-1) or placebo. Exercise bouts were carried out on a modified cycle ergometer which allowed power output to be computed for each one-half pedal stroke via microcomputer. Peak power output under caffeine conditions was not significantly different from that obtained following placebo ingestion. Similarly, time to peak power, total work, power fatigue index and power fatigue rate did not differ significantly between caffeine and placebo conditions. These results suggest that caffeine ingestion does not increase one's maximal ability to generate power. Further, caffeine does not alter the rate or magnitude of fatigue during high intensity, dynamic exercise.

Original languageEnglish
Pages (from-to)132-134
Number of pages3
JournalBritish Journal of Sports Medicine
Volume22
Issue number4
StatePublished - Dec 1 1988
Externally publishedYes

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Caffeine
Fatigue
Eating
Placebos
Microcomputers
Foot
Stroke

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Public Health, Environmental and Occupational Health

Cite this

Williams, J. H., Signorile, J., Barnes, W. S., & Henrich, T. W. (1988). Caffeine, maximal power output and fatigue. British Journal of Sports Medicine, 22(4), 132-134.

Caffeine, maximal power output and fatigue. / Williams, J. H.; Signorile, Joseph; Barnes, W. S.; Henrich, T. W.

In: British Journal of Sports Medicine, Vol. 22, No. 4, 01.12.1988, p. 132-134.

Research output: Contribution to journalArticle

Williams, JH, Signorile, J, Barnes, WS & Henrich, TW 1988, 'Caffeine, maximal power output and fatigue.', British Journal of Sports Medicine, vol. 22, no. 4, pp. 132-134.
Williams JH, Signorile J, Barnes WS, Henrich TW. Caffeine, maximal power output and fatigue. British Journal of Sports Medicine. 1988 Dec 1;22(4):132-134.
Williams, J. H. ; Signorile, Joseph ; Barnes, W. S. ; Henrich, T. W. / Caffeine, maximal power output and fatigue. In: British Journal of Sports Medicine. 1988 ; Vol. 22, No. 4. pp. 132-134.
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