The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Effects of 28-Day Beta-Alanine Supplementation on Isokinetic Exercise Performance and Body Composition in Female Masters Athletes
Abstract
Beta-alanine (BA) supplementation increases exercise performance due to increases in the intramuscular lactate buffer, carnosine. Females are more sensitive to these increases and results are further pronounced in trained individuals. Baseline intramuscular carnosine levels also naturally decrease with age; therefore, trained older females may experience augmented benefits from BA supplementation. However, the ability of BA to increase lower-body isokinetic strength (ISO) in female masters athletes (MA) is unknown. The purpose of this study was to examine the longitudinal effects of BA supplementation on ISO, handgrip strength (HG), and body composition in female MA cyclists. Twenty-two subjects participated in this double-blind randomized study. Subjects were randomized into 2 groups (placebo [PLA] = 8 g dextrose; BA = 800 mg + 8 g dextrose) and supplemented 4 times per day for 28 days. ISO, HG, and body composition were evaluated at baseline and at the same day/time each week over the 28-day intervention. No differences existed between groups at baseline or at the 7, 14, and 21 days time points for any variables (p > 0.05). When evaluating ISO (isokinetic) after 28 days, total work performed during the final third of the assessment (24.0 vs. -16.8% change) in flexion and average peak torque (5.4 vs. 2.9% change) in extension were significantly increased from baseline in BA compared with PLA (p ≤ 0.05). No differences existed for HG or body composition after supplementation. Twenty-eight days of BA supplementation increased peak torque and work completed, indicating BA improves lower-body exercise performance in female MA.
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Skeletal muscle mass and distribution in 468 men and women aged 18–88 yr
Janssen, I., Heymsfield, S. B., Wang, Z., & Ross, R. (2000) · Journal of Applied Physiology · doi:10.1152/jappl.2000.89.1.81 · Cited by 3,087
Goodpaster, B. H., Park, S. W., Harris, T. B., Kritchevsky, S. B., Nevitt, M., Schwartz, A. V., Simonsick, E. M., Tylavsky, F. A., Visser, M., Newman, A. B., et al. (2006) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/61.10.1059 · Cited by 3,083 · cited 1×
“Between 40 and 50 years of age, muscle mass can decrease up to 8% (19) and strength declines at even faster rates (14).”
BackgroundLauretani, F., Russo, C. R., Bandinelli, S., Bartali, B., Cavazzini, C., Di Iorio, A., Corsi, A. M., Rantanen, T., Guralnik, J. M., & Ferrucci, L. (2003) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00246.2003 · Cited by 1,946
Physical Activity and Quality of Life in Older Adults
Rejeski, W. J., & Mihalko, S. L. (2001) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/56.suppl_2.23 · Cited by 929
Valovich-mcLeod, T. C., Shultz, S. J., Gansneder, B. M., Perrin, D. H., & Drouin, J. M. (2004) · European Journal of Applied Physiology · doi:10.1007/s00421-003-0933-0 · Cited by 839
Age-related decline in physical activity: a synthesis of human and animal studies
SALLIS, J. F. (2000) · Medicine & Science in Sports & Exercise · doi:10.1097/00005768-200009000-00012 · Cited by 805
Hill, C. A., Harris, R. C., Kim, H. J., Harris, B. D., Sale, C., Boobis, L. H., Kim, C. K., & Wise, J. A. (2007) · Amino Acids · doi:10.1007/s00726-006-0364-4 · Cited by 445
Test-Retest Reliability of the Biodex Isokinetic Dynamometer
Feiring, D. C., Ellenbecker, T. S., & Derscheid, G. L. (1990) · Journal of Orthopaedic & Sports Physical Therapy · doi:10.2519/jospt.1990.11.7.298 · Cited by 359
Derave, W., Özdemir, M. S., Harris, R. C., Pottier, A., Reyngoudt, H., Koppo, K., Wise, J. A., & Achten, E. (2007) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00397.2007 · Cited by 324
Halson, S. L., Bridge, M. W., Meeusen, R., Busschaert, B., Gleeson, M., Jones, D. A., & Jeukendrup, A. E. (2002) · Journal of Applied Physiology · doi:10.1152/japplphysiol.01164.2001 · Cited by 304
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Saunders, B., Elliott-Sale, K., Artioli, G. G., Swinton, P. A., Dolan, E., Roschel, H., Sale, C., & Gualano, B. (2017) · British Journal of Sports Medicine · doi:10.1136/bjsports-2016-096396 · Cited by 302
Carnosine, Small but Mighty—Prospect of Use as Functional Ingredient for Functional Food Formulation
Jukić, I., Kolobarić, N., Stupin, A., Matić, A., Kozina, N., Mihaljević, Z., Mihalj, M., Šušnjara, P., Stupin, M., Ćurić, Ž. B., et al. (2021) · Antioxidants · doi:10.3390/antiox10071037 · Cited by 122
Larrosa, M., Gil‐Izquierdo, Á., González‐Rodríguez, L. G., Alférez, M. J. M., Juan, A. F. S., Sánchez-Gómez, Á., Calvo‐Ayuso, N., Ramos-Álvarez, J. J., Fernández‐Lázaro, D., López-Grueso, R., et al. (2024) · Nutrition Reviews · doi:10.1093/nutrit/nuae082 · Cited by 59
López-Torres, O., Rodríguez-Longobardo, C., Capel-Escoriza, R., & Fernández-Elías, V. E. (2022) · Nutrients · doi:10.3390/nu15010081 · Cited by 39
The Top 5 Can’t-Miss Sport Supplements
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Metadata
- Authors
- Glenn, J. M., Gray, M., Stewart, R. W., Moyen, N. E., Kavouras, S. A., DiBrezzo, R., Turner, R., Baum, J. I., & Stone, M. S.
- Affiliations
- University of Arkansas at Fayetteville (US)
- Corresponding author
- Glenn, Jordan M.
- Venue
- Journal of Strength and Conditioning Research
- Published
- 2016-01
- Volume
- 30
- Issue
- 1
- Pages
- 200-207
- ISSN
- 1064-8011 (ISSN-L)
- OpenAlex
- W2334929141
- Semantic Scholar
- fa749681b3364ed64af101684a22a87e6c3ebed9
- Cited by
- 31
- References
- 33
- Citations by year
- 2026: 2 · 2025: 4 · 2024: 3 · 2023: 1 · 2022: 5 · 2021: 4 · 2020: 1 · 2019: 4 · 2018: 2 · 2017: 2 · 2016: 3
- FWCI
- 1.50
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Strength and Conditioning Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Gemeinsame Bundesausschuss
- Topics
- Health Sciences › Medicine › Physiology (medical) › Biochemical effects in animals
- Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Keywords
- beta-alanine supplementation, carnosine, isokinetic strength, lower limb strength, grip strength, body composition, older women, cyclists, peak torque, exercise performance
- MeSH terms
- Body Composition, Double-Blind Method, Drug Administration Schedule, Exercise Test, Female, Humans, Middle Aged, beta-Alanine, Hand Strength, Dietary Supplements, Muscle Strength, Athletic Performance, Performance-Enhancing Substances
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- CoChat. (2026). Citation check: Effects of 28-Day Beta-Alanine Supplementation on Isokinetic Exercise Performance and Body Composition in Female Masters Athletes. https://app.cochat.ai/papers/10.1519/jsc.0000000000001077
- The paper
- Glenn, J. M., Gray, M., Stewart, R. W., Moyen, N. E., Kavouras, S. A., DiBrezzo, R., Turner, R., Baum, J. I., & Stone, M. S. (2016). Effects of 28-Day Beta-Alanine Supplementation on Isokinetic Exercise Performance and Body Composition in Female Masters Athletes. Journal of Strength and Conditioning Research. https://doi.org/10.1519/jsc.0000000000001077
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
