The effects of 8 weeks of creatine monohydrate and glutamine supplementation on body composition and performance measures
Lehmkuhl M, Malone M, Justice B, Trone G, Pistilli E, Vinci D, Haff EE, Kilgore JL, Haff GG
Journal of strength and conditioning research · 13 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Posiblemente financiado por la industria
- Grupo de la industria
- National Strength and Conditioning Association
Según 1 financiador declarado.
Publicación
- Publicado
- 2003-01-01 · J Strength Cond Res · vol. 17 · número 3 · pág. 425
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 36 citas · más que el 66% de estudios similares · 0.7× el promedio de su campo
- Referencias
- 57 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine monohydrate, glutamine, dietary supplementation, body composition, lean body mass, vertical jump, electricity generation, track and field athletes, strength and conditioning, training periodization
- MeSH
- muscle, skeletal, humans, creatine, glutamine, administration, oral, analysis of variance, double-blind method, body composition, physical education and training, dietary supplements, adolescent, adult, female, male
9 autores
- MARK LEHMKUHL🇺🇸Auburn University
- MOLLY MALONE🇺🇸Appalachian State University
- Blake D. Justice🇺🇸Appalachian State University
- GREGORY A. TRONE🇺🇸Appalachian State University
- EE Pistilli🇺🇸Appalachian State University
- Debra M. Vinci🇺🇸Appalachian State University
- Erin E. Haff🇺🇸Midwestern State University
- J. Lon Kilgore🇺🇸Midwestern State University
- G. GREGORY HAFF🇺🇸Midwestern State University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Twenty-nine (17 men, 12 women) collegiate track and field athletes were randomly divided into a creatine monohydrate (CM, n = 10) group, creatine monohydrate and glutamine (CG, n = 10) group, or placebo (P, n = 9) group. The CM group received 0.3 g creatine.kg body mass per day for 1 week, followed by 0.03 g creatine.kg body mass per day for 7 weeks. The CG group received the same creatine dosage scheme as the CM group plus 4 g glutamine.day(-1). All 3 treatment groups participated in an identical periodized strength and conditioning program during preseason training. Body composition, vertical jump, and cycle performances were tested before (T1) and after (T2) the 8-week supplementation period. Body mass and lean body mass (LBM) increased at a greater rate for the CM and CG groups, compared with the P treatment. Additionally, the CM and CG groups exhibited significantly greater improvement in initial rate of power production, compared with the placebo treatment. These results suggest CM and CG significantly increase body mass, LBM, and initial rate of power production during multiple cycle ergometer bouts.
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