Creatine supplementation during resistance training in college football athletes
Bemben MG, Bemben DA, Loftiss DD, Knehans AW
Medicine and science in sports and exercise · 58 citas
Etiquetas de revisión
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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
- 2001-10-01 · Med Sci Sports Exerc · vol. 33 · número 10 · págs. 1667–1673
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 130 citas · más que el 92% de estudios similares · 3.3× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 34 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine monohydrate supplementation, resistance training, body composition, neuromuscular performance, cell hydration, anaerobic power, muscle strength, lean body mass, extracellular fluid
- MeSH
- muscle, skeletal, humans, phosphocreatine, adenosine diphosphate, adenosine triphosphate, analysis of variance, double-blind method, body composition, time factors, physical education and training, students, football, dietary supplements, adolescent, adult, male
4 autores
- Michael G. Bemben🇺🇸University of Oklahoma
- Debra A. Bemben🇺🇸University of Oklahoma Health Sciences Center; University of Oklahoma
- DARREN D. LOFTISS🇺🇸University of Oklahoma Health Sciences Center; University of Oklahoma
- ALLEN W. KNEHANS🇺🇸University of Oklahoma Health Sciences Center; University of Oklahoma
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
This investigation assessed the effects of a 9-wk regimen of creatine monohydrate (Cr x H2O) supplementation coupled with resistance training on body composition and neuromuscular performance in NCAA Division I football athletes.
Methods
Twenty-five subjects were randomly assigned in a double-blind, randomized placebo-controlled design, to a treatment (Cr, N = 9), placebo (P, N = 8), or control group (C, N = 8). The Cr group received 20 g.d(-1) of creatine for the first 5 d in 5-g doses, four times daily, followed by 5 g.d(-1) for the remainder of the study. Each 5-g dose was mixed with 500 mL of glucose solution (Gatorade). The P group received a placebo (sodium phosphate monohydrate; NaH2PO4 x H2O) following the exact protocol as the Cr group. The C group received no supplementation. All subjects resistance trained 4 d.wk(-1). Measurements of neuromuscular performance and body composition were made pre- and post-training after supplementation while monitoring dietary intakes.
Results
Repeated measures ANOVA indicated significant differences occurred between the Cr group and the other two groups (P and C) for total body weight, lean body mass, cell hydration, strength, peak torque at 300 degrees.s(-1) knee flexion, percent torque decrement, and anaerobic power and capacity. However, percent body fat, peak torque during both knee flexion and extension at 60 and 180 degrees.s(-1), peak torque at 300 degrees.s(-1) during knee extension, global muscular strength (power clean), and extracellular fluid remained statistically unchanged for all groups.
Conclusions
Our findings indicate that creatine, supplemented concurrently with resistance and anaerobic training, may positively affect cell hydration status and enhance performance variables further than augmentation seen with training alone.
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