Effects of creatine loading on electromyographic fatigue threshold in cycle ergometry in college-age men
Walter AA, Smith AE, Herda TJ, Ryan ED, Moon JR, Cramer JT, Stout JR
International journal of sport nutrition and exercise metabolism · 4 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
- 2008-04-01 · Int J Sport Nutr Exerc Metab · vol. 18 · número 2 · págs. 142–151
- Editorial
- Human Kinetics
- Citado
- 6 citas · más que el 1% de estudios similares · 0.0× el promedio de su campo
- Referencias
- 56 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Muscle activation and electromyography studies
- Palabras clave
- creatine loading, creatine supplementation, muscle fatigue, cycle ergometry, vastus lateralis, placebo effect, weight gain
- MeSH
- muscle, skeletal, humans, creatine, electromyography, analysis of variance, cross-over studies, double-blind method, task performance and analysis, heart rate, muscle fatigue, physical endurance, bicycling, dietary supplements, adult, male
7 autores
- Ashley A. Walter🇺🇸University of Oklahoma
- Abbie E. Smith‐Ryan🇺🇸University of Oklahoma
- Trent J. Herda🇺🇸University of Oklahoma
- Eric D. Ryan🇺🇸University of Oklahoma
- Jordan Robert Moon🇺🇸University of Oklahoma
- Joel T. Cramer🇺🇸University of Oklahoma
- Jeffrey R. Stout🇺🇸University of Oklahoma
Resumen
El texto original del estudio, en el idioma en que se publicó.
The purpose of this study was to examine the effects of 5 d of creatine (Cr) loading on the electromyographic fatigue threshold (EMG FT) in college-age men. Sixteen men (age 22.4 +/- 2.6 yr, height 177.4 +/- 6.8 cm, weight 79.5 +/- 10.6 kg; M +/- SD) participated in this double-blind study and were randomly placed into either placebo (Pl; 10 g of flavored fructose powder per packet; n = 8) or Cr (5 g dicreatine citrate plus 10 g of flavored fructose powder per packet; n = 8) loading groups. Each participant ingested 1 packet 4 times/d, totaling 20 g/d for 5 days (loading). Before and after loading, each participant performed a discontinuous cycle-ergometer test to determine his EMG FT, using bipolar surface electrodes placed on the vastus lateralis of the right thigh. Four 60-s work bouts (ranging from 200 to 400 W) were completed. Adequate rest was given between bouts to allow for the participants' heart rate (HR) to drop within 10 beats of their resting HR. The EMG amplitude was averaged over 5-s intervals for each 60-s work bout. Resulting slopes from each successive work bout were used to calculate EMG FT. A 2-way ANOVA, Group (Cr vs. Pl) x Time (pre vs. post), resulted in a nonsignificant (p > .05) interaction for supplement and time. In addition, a significant increase (p = .009) in weight was observed in the Cr group. These data suggest that there was a minimal influence of Cr loading on EMG FT for the participants in this study.
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.