Effects of two and five days of creatine loading on muscular strength and anaerobic power in trained athletes
Law YL, Ong WS, GillianYap TL, Lim SC, Von Chia E
Journal of strength and conditioning research · 21 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
- 2009-05-01 · J Strength Cond Res · vol. 23 · número 3 · págs. 906–914
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 39 citas · más que el 75% de estudios similares · 1.0× el promedio de su campo
- Referencias
- 28 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine supplementation, creatine loading, resistance training, muscle strength, anaerobic power, trained athletes, creatine uptake, duration of supplementation
- MeSH
- humans, creatine, placebos, exercise test, urinalysis, anthropometry, blood chemical analysis, analysis of variance, double-blind method, anaerobic threshold, adult, male, muscle strength, resistance training
5 autores
- Lydia Yu Li Law🇸🇬 · autor de correspondenciaDSO National Laboratories
- Wee Sian Ong🇸🇬KK Women's and Children's Hospital
- Tsien Lin GillianYap🇦🇺The University of Queensland
- Su Ching Joselin Lim🇸🇬DSO National Laboratories
- Ee Von Chia🇸🇬DSO National Laboratories
Resumen
El texto original del estudio, en el idioma en que se publicó.
The purpose of this study was to establish the effects of 2 and 5 days of creatine loading, coupled with resistance training, on muscular strength and anaerobic performance in trained athletes. Seventeen trained men were randomly assigned to a creatine or a placebo group. The creatine supplementation group consumed 20 g of creatine per day (4 doses of 5 g per day), whereas the placebo group was given a placebo similar in appearance and taste over the 5-day supplementation duration. Anaerobic power and strength performance measures, in addition to blood and urine analysis, were conducted in the morning before the supplementation began and on the third and sixth day to establish the effect of 2 and 5 days of creatine loading, respectively. The study found that a 5-day creatine loading regime coupled with resistance training resulted in significant improvements in both average anaerobic power, as measured by the 30-second Wingate test and back squat strength compared with just training alone. However, 2 days of supplementation was not sufficient to produce similar performance gains as that observed at the end of 5 days of loading in trained men, despite increases in creatine uptake in the body. The standard 5-day loading regime should hence be prescribed to individuals supplementing with creatine for enhanced strength and power.
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