Creatine Monohydrate Supplementation Does Not Augment Fitness, Performance, or Body Composition Adaptations in Response to Four Weeks of High-Intensity Interval Training in Young Females
Forbes SC, Sletten N, Durrer C, Myette-Côté É, Candow D, Little JP
International journal of sport nutrition and exercise metabolism · 17 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
- 2016-10-21 · Int J Sport Nutr Exerc Metab · vol. 27 · número 3 · págs. 285–292
- Editorial
- Human Kinetics
- Citado
- 30 citas · más que el 86% de estudios similares · 0.4× el promedio de su campo
- Referencias
- 0 trabajos
- Acceso
- De pago
- Áreas de investigación
- Cardiovascular and exercise physiology · Sports Performance and Training · Muscle metabolism and nutrition
- Palabras clave
- Cardiorespiratory fitness, High-intensity interval training, Interval training, Medicine, Lean body mass, Augment, Internal medicine, Placebo, Animal science, Endocrinology, Aerobic exercise, Physical therapy, Biology, Body weight
- MeSH
- humans, insulin resistance, creatine, exercise test, adaptation, physiological, body composition, oxygen consumption, dietary supplements, adult, female, young adult, sports nutritional physiological phenomena, cardiorespiratory fitness, high-intensity interval training
6 autores
- Scott C. Forbes · autor de correspondencia
- Nathan R. Sletten
- Cody Garett Durrer
- Étienne Myette‐Côté
- Darren Glenn Candow
- Jonathan P. Little
Resumen
El texto original del estudio, en el idioma en que se publicó.
High-intensity interval training (HIIT) has been shown to improve cardiorespiratory fitness, performance, body composition, and insulin sensitivity. Creatine (Cr) supplementation may augment responses to HIIT, leading to even greater physiological adaptations. The purpose of this study was to determine the effects of 4 weeks of HIIT (three sessions/week) combined with Cr supplementation in recreationally active females. Seventeen females (age = 23 ± 4 yrs; BMI = 23.4 ± 2.4) were randomly assigned to either Cr (Cr; 0.3 g・kg-1・d-1 for 5 d followed by 0.1 g・kg-1・d-1 for 23 days; n = 9) or placebo (PLA; n = 8). Before and after the intervention, VO2peak, ventilatory threshold (VT), time-trial performance, lean body mass and fat mass, and insulin sensitivity were assessed. HIIT improved VO2peak (Cr = +10.2%; PLA = +8.8%), VT (Cr = +12.7%; PLA = +9.9%), and time-trial performance (Cr = -11.5%; PLA = -11.6%) with no differences between groups (time main effects, all p < .001). There were no changes over time for fat mass (Cr = -0.3%; PLA = +4.3%), whole-body lean mass (Cr = +0.5%; PLA = -0.9%), or insulin resistance (Cr = +3.9%; PLA = +18.7%). In conclusion, HIIT is an effective way to improve cardiorespiratory fitness, VT, and time-trial performance. The addition of Cr to HIIT did not augment improvements in cardiorespiratory fitness, performance or body composition in recreationally active females.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial.
Confianza de la comunidad
Cargando…
¿Cuánto confías en los hallazgos de este estudio?
Comentarios
¿Algo está mal aquí?
Señala este estudio si su información, etiquetas o financiación parecen incorrectas. Un editor revisa cada señalamiento.
Información educativa sobre investigación publicada. No es consejo médico ni una recomendación para empezar o dejar nada.