The effect of a 6 weeks of creatine monohydrate supplementation on dynamic rate of force development
| Deutscher übersetzter Titel: | Auswirkung einer sechswoechigen Supplementierung mit Kreatin-Monohydrat auf die Dynamik der Kraftentwicklung |
|---|---|
| Autor: | Haff, G.G.; Kirksey, K.B.; Stone, M.H.; Warren, B.J.; Johnson, R.L.; Stone, M.; O'Bryant, H.; Proulx, C. |
| Erschienen in: | Journal of strength and conditioning research |
| Veröffentlicht: | 14 (2000), 4, S. 426-433, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 1064-8011, 1533-4287 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU199912500947 |
| Quelle: | BISp |
Abstract des Autors
The effects of creatine supplementation on force-time curve (FTC) characteristics were investigated in collegiate track athletes. Sixteen male and 20 female athletes were randomly divided into a placebo (P, n=21) and a creatine (Cr, n=15) group. Six weeks of supplementation consisted 0.3 g per kilogram of body weight per day of Cr monohydrate or nonnutritive placebo. Subjects were involved in a periodized weight-training program centered on explosive exercises. Pretesting and posttesting consisted of 7-site skinfold analysis, countermovement vertical jump (CMJ), and static vertical jump (SJ). SJ was performed on a 61.0- x 121.9-cm ATMI (Advanced Medical Technologies, Newton, MA) force plate and was analyzed for FTC. No differences were found between the 2 treatments for FTC. The CMJ showed a significant group by time interaction with the Cr group improving at a greater rate than did the P group. Lean body mass (LBM) significantly increased in the Cr group after the treatment period. These results suggest that 6 weeks of Cr supplementation can favorably enhance LBM and CMJ performance in track athletes. Verf.-Referat