The effects of polyethylene glycosylated creatine supplementation on anaerobic performance measures and body composition
Camic CL, Housh TJ, Zuniga JM, Traylor DA, Bergstrom HC, Schmidt RJ, Johnson GO, Housh DJ
Journal of strength and conditioning research · 18 citas
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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
- 2013-07-27 · J Strength Cond Res · vol. 28 · número 3 · págs. 825–833
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 27 citas · más que el 78% de estudios similares · 1.4× el promedio de su campo
- Referencias
- 49 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine supplementation, ergogenic aids, anaerobic performance, vertical jump, agility, change of direction ability, muscular endurance, muscle strength, body composition, body mass
- MeSH
- muscle, skeletal, humans, polyethylene glycols, creatine, exercise test, double-blind method, body composition, anaerobic threshold, physical endurance, running, weight lifting, dietary supplements, male, muscle strength, athletic performance, young adult
8 autores
- Clayton L. Camic🇺🇸 · autor de correspondenciaUniversity of Nebraska–Lincoln; Creighton University; University of Wisconsin–La Crosse; University of Nebraska Medical Center
- Terry J. Housh🇺🇸University of Nebraska–Lincoln
- Jorge M. Zuñiga🇺🇸Creighton University
- Daniel A. Traylor🇺🇸University of Nebraska–Lincoln; University of Nebraska Medical Center
- Haley C. Bergstrom🇺🇸University of Nebraska–Lincoln
- Richard J. Schmidt🇺🇸University of Nebraska–Lincoln
- Glen O. Johnson🇺🇸University of Nebraska–Lincoln
- Dona J. Housh🇺🇸University of Nebraska Medical Center
Resumen
El texto original del estudio, en el idioma en que se publicó.
The purpose of this study was to examine the effects of 28 days of polyethylene glycosylated creatine (PEG-creatine) supplementation (1.25 and 2.50 g·d) on anaerobic performance measures (vertical and broad jumps, 40-yard dash, 20-yard shuttle run, and 3-cone drill), upper- and lower-body muscular strength and endurance (bench press and leg extension), and body composition. This study used a randomized, double-blind, placebo-controlled parallel design. Seventy-seven adult men (mean age ± SD, 22.1 ± 2.5 years; body mass, 81.7 ± 10.8 kg) volunteered to participate and were randomly assigned to a placebo (n = 23), 1.25 g·d of PEG-creatine (n = 27), or 2.50 g·d of PEG-creatine (n = 27) group. The subjects performed anaerobic performance measures, muscular strength (one-repetition maximum [1RM]), and endurance (80% 1RM) tests for bench press and leg extension, and underwater weighing for the determination of body composition at day 0 (baseline), day 14, and day 28. The results indicated that there were improvements (p < 0.0167) in vertical jump, 20-yard shuttle run, 3-cone drill, muscular endurance for bench press, and body mass for at least one of the PEG-creatine groups without changes for the placebo group. Thus, the present results demonstrated that PEG-creatine supplementation at 1.25 or 2.50 g·d had an ergogenic effect on lower-body vertical power, agility, change-of-direction ability, upper-body muscular endurance, and body mass.
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