Effect of caffeine on maximal strength and power in élite male athletes
Jacobson BH, Weber MD, Claypool L, Hunt LE
British journal of sports medicine · 46 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
- 1992-12-01 · Br J Sports Med · vol. 26 · número 4 · págs. 276–280
- Editorial
- BMJ
- Citado
- 78 citas · más que el 14% de estudios similares · 0.0× el promedio de su campo
- Referencias
- 35 trabajos
- Acceso
- Lectura gratuita
- Áreas de investigación
- Coffee research and impacts · Sports Performance and Training · Muscle metabolism and nutrition
- Palabras clave
- caffeine, muscle strength, muscle power, knee extensors, knee flexors, peak torque, angular velocity, resistance-trained athletes, elite male athletes, caffeine sensitivity
- MeSH
- knee, muscles, humans, caffeine, double-blind method, physical endurance, muscle contraction, sports, adult, united states, male
4 autores
- Bert Hans Jacobson🇺🇸Oklahoma State University
- M D Weber🇺🇸Oklahoma State University
- L Claypool🇺🇸Oklahoma State University
- L E Hunt🇺🇸Oklahoma State University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Computerized testing of 20 élite male athletes was performed to determine the effect of 7 mg kg-1 caffeine on strength and power of the knee extensors and flexors. Subjects received counterbalanced administrations of either caffeine or a placebo on two separate occasions. Peak torque (T) was measured for knee extension (ET) and flexion (FT) at angular velocities of 30 degrees, 150 degrees and 300 degrees s-1. Additionally, performance for the first 125 ms (TAE) and power (W) were recorded during 300 degrees s-1. Testing sessions were held 1 week apart, at which time the placebo/caffeine administration was reversed. A 2 x 2 repeated measures analysis of variance supplemented with a Neuman-Keuls post hoc test showed the following--significant caffeine-related increases (P < 0.05) for ET at 30 degrees s-1, ET at 300 degrees s-1, and ETAE, and EW at 300 degrees s-1. Dependent t-tests performed for pre- to post-test means showed significant changes for the caffeine group in ET at 30 degrees s-1, FT at 30 degrees s-1, FT at 150 degrees s-1, ET at 300 degrees s-1, FT at 300 degrees s-1, E and FTAE, and EW at 300 degrees s-1. No significant effects were found for the placebo trial in any variable. It was concluded that caffeine can favourably affect some strength parameters in highly resistance-trained males. However, differences in subject fibre type, motivation and caffeine sensitivity need to be elucidated.
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