The effect of longer-term creatine supplementation on elite swimming performance after an acute creatine loading
Deutscher übersetzter Titel: | Auswirkung laengerfristiger Kreatinsupplementierung auf die Schwimmleistung von Spitzenschwimmern nach einer akuten Kreatingabe |
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Autor: | Theodorou, A.S.; Cooke, C.B.; King, R.F.G.J.; Hood, C.; Denison, T.; Wainwright, B.G.; Havenetidis, K. |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 17 (1999), 11, S. 853-859, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199912404168 |
Quelle: | BISp |
Abstract des Autors
We investigated the effect of an acute creatine loading (25 g per day for 4 days) and longer-term creatine supplementation (5 g of creatine or 5 g of placebo per day for 2 months) on the performance of 22 elite swimmers during maximal interval sessions. After the acute creatine loading, the mean of the average interval swim times for all swimmers (n=22) improved (44.3+/-16.5 s before vs 43.7+/-16.3 s after supplementation; P<0.01). Three of the 22 swimmers did not respond positively to supplementation. After 2 months of longer term creatine supplementation or placebo, neither group showed a significant change in swimming performance (38.7+/-13.5 s before vs 38.7+/-14.1 s after for the creatine group; 48.7+/-18.0 s before vs 48.7+/-18.1 s after for the placebo group). We conclude that, in elite swimmers, 4 days of acute creatine loading improves swimming performance significantly when assessed by maximal interval sessions. However, longer-term supplementation for 2 months (5 g of creatine per day) did not benefit significantly the creatine group compared with the placebo group. Verf.-Referat