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 citations
Review labels
Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.
How it was studied
- Design
- Randomized controlled trial (indexed by PubMed)
- Studied in
- People
- Main outcome
- Health markers and function
Who paid for it
- Funding
- Funding not disclosed
Publication
- Published
- 2021-10-01 · J Sports Med Phys Fitness · vol. 61 · issue 9 · pp. 1219–1225
- Publisher
- Edizioni Minerva Medica
- Cited
- 11 citations · more than 69% of similar papers · 0.9× the field average
- References
- 25 works
- Access
- Paywalled
- Research areas
- Muscle metabolism and nutrition · Cardiovascular and exercise physiology · Sports Performance and Training
- Keywords
- 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 authors
From CA
- Scott C. Forbes · correspondingBrandon University
- Joel R. KrentzBrandon University
- Darren Glenn CandowUniversity of Regina
Abstract
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.
Abstract via Europe PMC. Copyright remains with the authors or publisher.
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