Cited by 219Muscle metabolism and nutritionSports Performance and TrainingBiochemical effects in animals

Creatine Supplementation Enhances Muscular Performance During High-Intensity Resistance Exercise

VOLEK, JEFF S., KRAEMER, WILLIAM J., BUSH, JILL A., BOETES, MARK, INCLEDON, THOMAS, CLARK, KRISTINE L., LYNCH, JAMES M.·1997·Journal of the American Dietetic Association

Abstract

Objective This study was undertaken to investigate the influence of oral supplementation with creatine monohydrate on muscular performance during repeated sets of high-intensity resistance exercise. Subjects/design Fourteen active men were randomly assigned in a double-blind fashion to either a creatine group (n = 7) or a placebo group (n = 7). Both groups performed a bench press exercise protocol (5 sets to failure using each subject's predetermined 10-repetition maximum) and a jump squat exercise protocol (5 sets of 10 repetitions using 30% of each subject's 1-repetition maximum squat) on three different occasions (T1, T2, and T3) separated by 6 days. Intervention Before T1, both groups received no supplementation. From T1 to T2, both groups ingested placebo capsules. From T2 to T3, the creatine group ingested 25 g creatine monohydrate per day, and the placebo group ingested an equivalent amount of placebo. Main outcome measures Total repetitions for each set of bench presses and peak power output for each set of jump squats were determined. Other measures included assessment of diet, body mass, skinfold thickness, and preexercise and 5-minute postexercise lactate concentrations. Results Lifting performance was not altered for either exercise protocol after ingestion of the placebos. Creatine supplementation resulted in a significant improvement in peak power output during all 5 sets of jump squats and a significant improvement in repetitions during all 5 sets of bench presses. After creatine supplementation, postexercise lactate concentrations were significantly higher after the bench press but not the jump squat. A significant increase in body mass of 1.4 kg (range = 0.0 to 2.7 kg) was observed after creatine ingestion. Conclusion One week of creatine supplementation (25 g/day) enhances muscular performance during repeated sets of bench press and jump squat exercise.

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Crossref · 10.1016/s0002-8223(97)00189-2

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Authors
VOLEK, J. S., KRAEMER, W. J., BUSH, J. A., BOETES, M., INCLEDON, T., CLARK, K. L., & LYNCH, J. M.
Affiliations
Pennsylvania State University (US)
Venue
Journal of the American Dietetic Association
Publisher
Elsevier BV
Published
1997-07
Volume
97
Issue
7
Pages
765-770
ISSN
0002-8223 (ISSN-L)
OpenAlex
W1995489858
Cited by
219
References
0
Citations by year
2026: 5 · 2025: 3 · 2024: 4 · 2023: 6 · 2022: 5 · 2021: 7 · 2020: 4 · 2019: 4 · 2018: 8 · 2017: 12 · 2016: 6 · 2015: 9 · 2014: 6 · 2013: 10 · 2012: 1
FWCI
4.44
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Dietetic Association (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Physiology › Biochemical effects in animals
Keywords
creatine monohydrate, creatine supplementation, muscle performance, high-intensity resistance training, bench press, jump squat, peak power, weight gain
MeSH terms
Adult, Body Composition, Creatine, Diet, Double-Blind Method, Humans, Male, Placebos, Weight Lifting, Exercise, Muscle, Skeletal, Lactic Acid

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