The Biomechanic Origin of Sprint Performance Enhancement after One-Week Creatine Supplementation

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Author(s)

Abstract

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.<br>

Journal

  • The Japanese Journal of Physiology

    The Japanese Journal of Physiology 50(2), 273-276, 2000-04

    THE PHYSIOLOGICAL SOCIETY OF JAPAN

References:  22

Codes

  • NII Article ID (NAID)
    10008291190
  • NII NACSIS-CAT ID (NCID)
    AA00691224
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    0021521X
  • NDL Article ID
    5413554
  • NDL Source Classification
    ZS8(科学技術--医学--解剖学・生理学・生化学)
  • NDL Call No.
    Z53-D40
  • Data Source
    CJP  NDL  J-STAGE 
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