The biomechanic origin of sprint performance enhancement after one-week creatine supplementation.
- Schedel JM Institute of Physiology, Faculty of Medicine, University of Lausanne, Lausanne, Switzerland. Jean-Marc.Schedel@iphysiol.unil.ch
- Terrier P
- Schutz Y
- 2000-07-06
Published in:
- The Japanese journal of physiology. - 2000
English
In order to test whether an improvement of maximal sprinting speed after creatine (Cr) supplementation was due to the increase of stride frequency (SF), stride length (SL) or both, 7 subjects ran 4 consecutive sprints after 1 week of placebo or Cr supplementation. SF and SL were assessed by a triaxial accelerometer. Compared to the placebo, Cr induced an increase of running speed (+1.4% p < 0.05) and SF (+1.5%, p < 0.01), but not of SL. The drop in performance following repeated sprints was partially prevented by Cr. In conclusion, exogenous Cr enhanced sprinting performance by increasing SF. This result may be related to the recent findings of shortening in muscular relaxation time after Cr supplementation.
- Language
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- English
- Open access status
- bronze
- Identifiers
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- DOI 10.2170/jjphysiol.50.273
- PMID 10880885
- Persistent URL
- https://sonar.ch/global/documents/139106
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