The effects of creatine supplementation on high-intensity exercise performance in elite performers
McNaughton LR, Dalton B, Tarr J
European journal of applied physiology and occupational physiology · 34 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 1998-07-01 · Eur J Appl Physiol Occup Physiol · vol. 78 · número 3 · págs. 236–240
- Editorial
- Springer Science+Business Media
- Citado
- 64 citas · más que el 84% de estudios similares · 1.8× el promedio de su campo
- Referencias
- 21 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · CC-BY
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine supplementation, creatine monohydrate, high-intensity exercise performance, kayak ergometer, elite athletes, body mass
- MeSH
- muscle, skeletal, humans, creatine, lactic acid, exercise test, body mass index, exercise, psychomotor performance, sports, skiing, dietary supplements, adult, female, male
3 autores
- Lars Robert McNaughton🇬🇧Kingston University London
- Brad S. Dalton🇦🇺University of Tasmania
- Janine Tarr🇦🇺University of Tasmania
Resumen
El texto original del estudio, en el idioma en que se publicó.
The aim of this research was to determine whether creatine supplementation at a dose of 20 g x day(-1), given in 4 x 6-g doses (5 g creatine monohydrate and 1 g glucose) for 5 days, was effective in improving kayak ergometer performances of different durations. Sixteen male subjects with the following characteristics [mean (SEM)]: age 21 (1.2) years, height 170.2 (1.7) cm, weight 75.3 (2.3) kg, sigma8 skinfolds 59.3 (2.6) mm, and maximal oxygen consumption 67.1 +/- (4.3) ml x kg x min(-1), undertook three maximal kayak ergometer tests of 90, 150 and 300 s duration on a wind-braked kayak ergometer (CON). Two groups were then randomly formed, with one group taking the supplement (SUP) while the other took a placebo (PLAC). No pre-test differences existed between the SUP and the PLAC groups in any of the variables measured. After supplementation each group then repeated the same kayak ergometer tests as performed previously and after a 4-week "washout period" the groups took either the PLAC or SUP for another 5 days and then completed the final tests. The SUP group completed significantly more work than either the CON or PLAC groups in all of the tests (90 s, P < 0.01; 150 s, P < 0.001; 300 s, P < 0.05). Body mass remained stable throughout the test period in both the CON and PLAC groups, but both were significantly less than the SUP body mass of 77.3 (1.0) kg (P < 0.01). The results of this work indicate that creatine supplementation can significantly increase the amount of work accomplished during kayak ergometer performance at durations ranging from 90 to 300 s.
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