Timing of creatine supplementation does not influence gains in unilateral muscle hypertrophy or strength from resistance training in young adults: a within-subject design
Forbes SC, Krentz JR, Candow DG
The Journal of sports medicine and physical fitness · 6 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
- 2021-10-01 · J Sports Med Phys Fitness · vol. 61 · número 9 · págs. 1219–1225
- Editorial
- Edizioni Minerva Medica
- Citado
- 11 citas · más que el 69% de estudios similares · 0.9× el promedio de su campo
- Referencias
- 25 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Cardiovascular and exercise physiology · Sports Performance and Training
- Palabras clave
- Muscle hypertrophy, Creatine, Medicine, Placebo, Creatine Monohydrate, Resistance training, Strength training, Elbow, Physical strength, Physical therapy, Muscle mass, Internal medicine, Anatomy
- MeSH
- muscle, skeletal, humans, hypertrophy, creatine, dietary supplements, adolescent, adult, female, male, muscle strength, resistance training, young adult
3 autores
- Scott C. Forbes🇨🇦 · autor de correspondenciaBrandon University
- Joel R. Krentz🇨🇦Brandon University
- Darren Glenn Candow🇨🇦University of Regina
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Creatine supplementation, in close proximity to resistance training sessions, may be an important strategy to augment muscle accretion and strength. The purpose of this study was to examine the effects of creatine supplementation immediately before compared to immediately after unilateral resistance training on hypertrophy and strength.
Methods
Using a counter-balanced, double-blind, repeated measures within-subject design, ten recreationally active participants (7 males; 3 females; age: 23±5 years; height: 174±9 cm; body mass: 73.5±9.7 kg) were randomized to supplement with creatine monohydrate (0.1 g/kg of body mass) immediately before and placebo immediately after training one side of the body and placebo immediately before and creatine immediately after training the other side of the body on alternate days. Resistance training consisted of elbow flexion and knee extension (3-6 sets at 80% 1-repetition maximum [1-RM]) for 8 weeks. Prior to and following training, muscle thickness (elbow flexors and leg extensors; ultrasonography) and strength (1-RM for the elbow flexors and knee extensors) was assessed.
Results
There was a significant increase over time for muscle thickness, strength, and relative strength (P<0.01), with no differences between creatine ingestion strategies. Total training volume performed was similar between conditions (P=0.56).
Conclusions
Creatine supplementation, immediately before or immediately after unilateral resistance training, produces similar gains in muscle hypertrophy and strength in young adults.
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