The influence of dietary creatine supplementation on performance during repeated bouts of maximal isokinetic cycling in man
Birch R, Noble D, Greenhaff PL
European journal of applied physiology and occupational physiology · 115 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
- 1994-05-01 · Eur J Appl Physiol Occup Physiol · vol. 69 · número 3 · págs. 268–270
- Editorial
- Springer Science+Business Media
- Citado
- 251 citas · más que el 89% de estudios similares · 2.5× el promedio de su campo
- Referencias
- 9 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- isokinetic cycling, repeated exercise bouts, peak power, blood ammonia, blood lactate, exercise performance, creatine
- MeSH
- muscle, skeletal, humans, ammonia, creatine, lactates, lactic acid, phosphocreatine, adenosine triphosphate, exercise test, exercise, food, fortified, adult, male
3 autores
- R. Birch🇬🇧University of Nottingham; Queen's Medical Centre
- Dominic Noble🇬🇧University of Nottingham; Queen's Medical Centre
- Paul Leonard Greenhaff🇬🇧University of Nottingham; Queen's Medical Centre
Resumen
El texto original del estudio, en el idioma en que se publicó.
The effect of dietary creatine (Cr) supplementation on performance during 3, 30 s bouts maximal isokinetic cycling and on plasma ammonia and blood lactate accumulation during exercise was investigated. Placebo (P) ingestion had no effect on peak power output (PPO), mean power output (MPO) and total work output during each bout of exercise. Cr ingestion (4 x 5 g.day-1 for 5 days) significantly increased PPO in exercise bout 1 (p < 0.05) and MPO and total work output in exercise bouts 1 (p < 0.05, p < 0.05, respectively) and 2 (p < 0.05, p < 0.05, respectively). Cr ingestion had no effect on any of the measures of performance during exercise bout 3. No difference was observed in peak plasma ammonia accumulation before (146 + 30 mumol.l-1) and after (122 +/- 17 mumol.l-1) P ingestion, however the corresponding concentration was lower following Cr ingestion (129 +/- 22 mumol.l-1) compared with before Cr ingestion (160 +/- 18 mumol.l-1, p < 0.05), despite subjects performing more work. No difference in peak blood lactate accumulation was observed before and after P or Cr ingestion. The results demonstrate that Cr ingestion can increase whole body exercise performance during the initial two, but not a third, successive bout of maximal exercise lasting 30 s. The lower accumulation of plasma ammonia under these conditions suggests this response is achieved by an effect on muscle ATP turnover.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial.
Confianza de la comunidad
Cargando…
¿Cuánto confías en los hallazgos de este estudio?
Comentarios
¿Algo está mal aquí?
Señala este estudio si su información, etiquetas o financiación parecen incorrectas. Un editor revisa cada señalamiento.
Información educativa sobre investigación publicada. No es consejo médico ni una recomendación para empezar o dejar nada.