The effects of creatine monohydrate loading on anaerobic performance and one-repetition maximum strength
Zuniga JM, Housh TJ, Camic CL, Hendrix CR, Mielke M, Johnson GO, Housh DJ, Schmidt RJ
Journal of strength and conditioning research · 30 citas
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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
- 2011-10-04 · J Strength Cond Res · vol. 26 · número 6 · págs. 1651–1656
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 46 citas · más que el 66% de estudios similares · 0.7× el promedio de su campo
- Referencias
- 29 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine monohydrate, creatine loading, dietary supplementation, anaerobic performance, Wingate test, average power, peak power, one-repetition maximum, leg extension, bench press, body weight, maltodextrin placebo
- MeSH
- muscle, skeletal, humans, creatine, exercise test, exercise, analysis of variance, double-blind method, physical endurance, dietary supplements, male, muscle strength, young adult, biomechanical phenomena
8 autores
- Jorge M. Zuñiga🇺🇸 · autor de correspondenciaWestern New Mexico University
- Terry J. Housh🇺🇸University of Nebraska–Lincoln
- Clayton L. Camic🇺🇸University of Wisconsin–Platteville
- C. Russell Hendrix🇺🇸University of Wisconsin–La Crosse
- Michelle M. Mielke🇺🇸University of Nebraska–Lincoln
- Glen O. Johnson🇺🇸University of Nebraska–Lincoln
- Dona J. Housh
- Richard J. Schmidt🇺🇸University of Nebraska–Lincoln
Resumen
El texto original del estudio, en el idioma en que se publicó.
The purpose of this study was to examine the effects of 7 days of supplementation with 20 g·d⁻¹ of creatine monohydrate (CM) on mean power (MP) and peak power (PP) from the Wingate anaerobic test (WAnT), body weight (BW), 1-repetition maximum (1RM) bilateral leg extension (LE) strength, and 1RM bench press (BP) strength. This study used a randomized, double-blind, placebo-controlled design. Twenty-two men (mean ± SD: age = 22.1 ± 2.0 years; height = 178.0 ± 5.8 cm; body weight [BW] = 77.6 ± 7.6 kg) were randomly assigned to either a supplement (SUPP; n = 10) or placebo (PLAC; n = 12) group. The SUPP group ingested 20 g·d⁻¹ of CM powder for 7 days, whereas the PLAC ingested 20 g·d⁻¹ of maltodextrin powder. Measurements for the PLAC and SUPP groups included BW, PP, and MP from two 30-second WAnTs (separated by 7 minutes), and 1RM strength for LE and BP. Testing was conducted before (PRE) and after (POST) 7 days of ingesting either the supplement or placebo. The results of this study indicated that there was a significant (p ≤ 0.05) increase from PRE to POST testing in MP for the SUPP group (5.4%) but not for the PLAC group (-0.3%). There were no between-group differences, however, for 1RM LE and 1RM BP strength. Furthermore, there were no changes in PP or BW for either group. The findings of this study indicated that loading with 20 g·d⁻¹ of CM for 7 days increased MP (5.4% increase) from the WAnT, but it had no effect on strength (1RM LE and 1RM BP), PP, or BW.
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