Effect of carbohydrate ingestion subsequent to carbohydrate supercompensation on endurance performance
Deutscher übersetzter Titel: | Auswirkung von Kohlenhydratzufuhr nach vorangegangener Kohlenhydratsuperkompensation auf die Ausdauerleistung |
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Autor: | Kang, Jie; Robertson, Robert J.; Denys, Bart G.; Dasilva, Sergio G.; Visich, Paul; Suminski, Richard S.; Utter, Alan C.; Goss, Fredric L.; Metz, Kenneth F. |
Erschienen in: | International journal of sport nutrition and exercise metabolism |
Veröffentlicht: | 5 (1995), 4, S. 329-343, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1050-1606, 1543-2742 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199603106402 |
Quelle: | BISp |
Abstract des Autors
This investigation determined whether carbohydrate ingestion during prolonged moderate-intensity exercise enhanced endurance performance when the exercise was preceded by carbohydrate supercompensation. Seven male trained cyclists performed two trials at an initial power output corresponding to 71+/-1% of their peak oxygen consumption. During the trials, subjects ingested either a 6% glucose/sucrose (C) solution or an equal volume of artificially flavored and sweetend placebo (P) every 20 min throughout exercise. Both C and P were preceded by a 6-day carbohydrate supercompensation procedure in which subjects undertook a depletion-taper exercise sequence in conjunction with a moderate- and high-carbohydrate diet regimen. Statistical analysis of time to exhaustion, plasma glucose concentration, carbohydrate oxidation rate, fat oxidation rate, and plasma glycerol concentration indicated that in spite of a carbohydrate supercompensation procedure administered prior to exercise, carbohydrate ingestion during exercise can exert an additional ergogenic effect by preventing a decline in blood glucose levels and maintaining carbohydrate oxidation during the later stages of moderate-intensity exercise. Verf.-Referat