Influence of β-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity
Abstract
Muscle carnosine synthesis is limited by the availability of beta-alanine. Thirteen male subjects were supplemented with beta-alanine (CarnoSyn) for 4 wks, 8 of these for 10 wks. A biopsy of the vastus lateralis was obtained from 6 of the 8 at 0, 4 and 10 wks. Subjects undertook a cycle capacity test to determine total work done (TWD) at 110% (CCT(110%)) of their maximum power (Wmax). Twelve matched subjects received a placebo. Eleven of these completed the CCT(110%) at 0 and 4 wks, and 8, 10 wks. Muscle biopsies were obtained from 5 of the 8 and one additional subject. Muscle carnosine was significantly increased by +58.8% and +80.1% after 4 and 10 wks beta-alanine supplementation. Carnosine, initially 1.71 times higher in type IIa fibres, increased equally in both type I and IIa fibres. No increase was seen in control subjects. Taurine was unchanged by 10 wks of supplementation. 4 wks beta-alanine supplementation resulted in a significant increase in TWD (+13.0%); with a further +3.2% increase at 10 wks. TWD was unchanged at 4 and 10 wks in the control subjects. The increase in TWD with supplementation followed the increase in muscle carnosine.
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10-wk of β-alanine supplementation increased muscle carnosine content and resulted in an improvement in a cycling capacity test at 110% Wmax.
“Hill et al. [211] extended on these findings by showing 10-wk of β-alanine supplementation increased muscle carnosine content and resulted in an improvement in a cycling capacity test at 110% Wmax.”
From Nutritional Considerations for the Vegan Athlete (2023) · cites this paper as [211]
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- Authors
- Hill, C. A., Harris, R. C., Kim, H. J., Harris, B. D., Sale, C., Boobis, L. H., Kim, C. K., & Wise, J. A.
- Affiliations
- University of Chichester (GB)
- Korea National Sport University (KR)
- Qinetiq (United Kingdom) (GB)
- Sunderland Royal Hospital (GB)
- ORCID
- Venue
- Amino Acids
- Published
- 2006-07-28
- Volume
- 32
- Issue
- 2
- Pages
- 225-233
- ISSN
- 0939-4451 (ISSN-L)
- 1438-2199
- OpenAlex
- W2041824571
- Cited by
- 445
- References
- 49
- Citations by year
- 2026: 13 · 2025: 16 · 2024: 20 · 2023: 24 · 2022: 18 · 2021: 27 · 2020: 31 · 2019: 21 · 2018: 34 · 2017: 15 · 2016: 24 · 2015: 21 · 2014: 31 · 2013: 36 · 2012: 30
- FWCI
- 8.42
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Amino Acids (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Physiology › Biochemical effects in animals
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Keywords
- beta-alanine supplementation, muscle carnosine, skeletal muscle, high-intensity cycling, taurine, vastus lateralis, muscle fiber type, exercise capacity, amino acid supplementation
- MeSH terms
- Adult, Biopsy, Carnosine, Drug Administration Schedule, Exercise Test, Humans, Hydrogen-Ion Concentration, Male, Models, Biological, Protons, Taurine, Time Factors, beta-Alanine, Muscle, Skeletal, Dietary Supplements
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