The biomechanic origin of sprint performance enhancement after one-week creatine supplementation.

Détails

ID Serval
serval:BIB_B86D4DC476B4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The biomechanic origin of sprint performance enhancement after one-week creatine supplementation.
Périodique
Japanese Journal of Physiology
Auteur⸱e⸱s
Schedel J.M., Terrier P., Schutz Y.
ISSN
0021-521X (Print)
ISSN-L
0021-521X
Statut éditorial
Publié
Date de publication
2000
Peer-reviewed
Oui
Volume
50
Numéro
2
Pages
273-276
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
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.
Mots-clé
Creatine/administration & dosage, Creatine/physiology, Exercise/physiology, Humans, Male, Muscle Contraction/drug effects, Muscle Contraction/physiology, Muscle, Skeletal/drug effects, Muscle, Skeletal/physiology, Running/physiology
Pubmed
Web of science
Open Access
Oui
Création de la notice
21/01/2008 13:08
Dernière modification de la notice
20/08/2019 15:26
Données d'usage