Effect of creatine supplementation on aerobic performance and anaerobic capacity in elite rowers in the course of endurance training
Chwalbiñska-Moneta J
International journal of sport nutrition and exercise metabolism · 24 citas
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Publicación
- Publicado
- 2003-06-01 · Int J Sport Nutr Exerc Metab · vol. 13 · número 2 · págs. 173–183
- Editorial
- Human Kinetics
- Citado
- 70 citas · más que el 66% de estudios similares · 0.7× el promedio de su campo
- Referencias
- 37 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Cardiovascular and exercise physiology
- Palabras clave
- creatine supplementation, creatine monohydrate, rowing, elite athletes, endurance training, aerobic performance, anaerobic capacity, lactate threshold, blood lactate, all-out exercise, rowing ergometer
- MeSH
- muscle, skeletal, humans, creatine, lactic acid, administration, oral, double-blind method, task performance and analysis, adaptation, physiological, oxygen consumption, anaerobic threshold, heart rate, physical endurance, reference values, physical education and training, sports, dietary supplements, adult, male
1 autor
- Jolanta Chwalbinska-Moneta🇵🇱 · autor de correspondenciaMossakowski Medical Research Institute, Polish Academy of Sciences; Polish Academy of Sciences
Resumen
El texto original del estudio, en el idioma en que se publicó.
The effect of oral creatine supplementation on aerobic and anaerobic performance was investigated in 16 elite male rowers during 7-day endurance training. Before and after the daily ingestion of 20 g creatine monohydrate for 5 days (Cr-Group, n=8) or placebo (Pl-Group, n=8), subjects performed two exercise tests on a rowing ergometer: (a) incremental exercise consisting of 3-min stage durations and increased by 50 W until volitional exhaustion; (b) an all-out anaerobic exercise performed against a constant load of 7 W/kg. Heart rate and blood lactate concentrations were determined during exercise and recovery. Maximal power output did not significantly differ after the treatment in either group. The mean individual lactate threshold rose significantly after Cr treatment from 314.3 +/- 5.0 W to 335.6 +/- 7.1 W (p<.01), as compared with 305.0 +/- 6.9 W and 308.9 +/- 5.9 W (ns), before and after placebo ingestion, respectively. During the anaerobic test, the athletes supplemented with creatine were able to continue rowing longer (mean increase, 12.1 +/- 4.5 s; p<.01) than Pl-Group (2.4 +/- 8.2 s; ns). No significant differences were found between groups in blood LA after the all-out exercise. The results indicate that in elite rowers, creatine supplementation improves endurance (expressed by the individual lactate threshold) and anaerobic performance, independent of the effect of intensive endurance training.
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