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Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial

Aging is associated with sarcopenia and dynapenia, with both processes contributing to functional dependence and mortality in older adults. Resistance training (RT) and increased protein intake are strategies that may contribute to health improvements in older adults. Therefore, the aim was to inves...

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Autores principales: Nabuco, Hellen C. G., Tomeleri, Crisieli M., Sugihara Junior, Paulo, Fernandes, Rodrigo R., Cavalcante, Edilaine F., Antunes, Melissa, Ribeiro, Alex S., Teixeira, Denilson C., Silva, Analiza M., Sardinha, Luís B., Cyrino, Edilson S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5986443/
https://www.ncbi.nlm.nih.gov/pubmed/29751507
http://dx.doi.org/10.3390/nu10050563
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author Nabuco, Hellen C. G.
Tomeleri, Crisieli M.
Sugihara Junior, Paulo
Fernandes, Rodrigo R.
Cavalcante, Edilaine F.
Antunes, Melissa
Ribeiro, Alex S.
Teixeira, Denilson C.
Silva, Analiza M.
Sardinha, Luís B.
Cyrino, Edilson S.
author_facet Nabuco, Hellen C. G.
Tomeleri, Crisieli M.
Sugihara Junior, Paulo
Fernandes, Rodrigo R.
Cavalcante, Edilaine F.
Antunes, Melissa
Ribeiro, Alex S.
Teixeira, Denilson C.
Silva, Analiza M.
Sardinha, Luís B.
Cyrino, Edilson S.
author_sort Nabuco, Hellen C. G.
collection PubMed
description Aging is associated with sarcopenia and dynapenia, with both processes contributing to functional dependence and mortality in older adults. Resistance training (RT) and increased protein intake are strategies that may contribute to health improvements in older adults. Therefore, the aim was to investigate the effects of whey protein (WP) supplementation consumed either immediately pre- or post-RT on skeletal muscle mass (SMM), muscular strength, and functional capacity in pre-conditioned older women. Seventy older women participated in this investigation and were randomly assigned to one of three groups: whey protein pre-RT and placebo post-RT (WP-PLA, n = 24), placebo pre-RT and whey protein post-RT (PLA-WP, n = 23), and placebo pre- and post-RT (PLA-PLA, n = 23). Each group ingested 35 g of WP or PLA. The RT program was carried out over 12 weeks (three times per week; 3 × 8–12 repetition maximum). Body composition, muscular strength, functional capacity, and dietary intake were assessed pre- and post-intervention. Two-way analysis of covariance (ANCOVA) for repeated measures, with baseline scores as covariates were used for data analysis. A time vs. group interaction (p < 0.05) was observed with WP-PLA and PLA-WP presenting greater increases compared with PLA-PLA for SMM (WP-PLA = 3.4%; PLA-WP = 4.2%; PLA-PLA = 2.0%), strength (WP-PLA = 8.1%; PLA-WP = 8.3%; PLA-PLA = 7.0%), and the 10-m walk test (WP-PLA = −10.8%; PLA-WP = −11.8%; PLA-PLA = −4.3%). Whey protein supplementation was effective in promoting increases in SMM, muscular strength, and functional capacity in pre-conditioned older women, regardless of supplementation timing. This trial was registered at ClinicalTrials.gov: NCT03247192.
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spelling pubmed-59864432018-06-05 Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial Nabuco, Hellen C. G. Tomeleri, Crisieli M. Sugihara Junior, Paulo Fernandes, Rodrigo R. Cavalcante, Edilaine F. Antunes, Melissa Ribeiro, Alex S. Teixeira, Denilson C. Silva, Analiza M. Sardinha, Luís B. Cyrino, Edilson S. Nutrients Article Aging is associated with sarcopenia and dynapenia, with both processes contributing to functional dependence and mortality in older adults. Resistance training (RT) and increased protein intake are strategies that may contribute to health improvements in older adults. Therefore, the aim was to investigate the effects of whey protein (WP) supplementation consumed either immediately pre- or post-RT on skeletal muscle mass (SMM), muscular strength, and functional capacity in pre-conditioned older women. Seventy older women participated in this investigation and were randomly assigned to one of three groups: whey protein pre-RT and placebo post-RT (WP-PLA, n = 24), placebo pre-RT and whey protein post-RT (PLA-WP, n = 23), and placebo pre- and post-RT (PLA-PLA, n = 23). Each group ingested 35 g of WP or PLA. The RT program was carried out over 12 weeks (three times per week; 3 × 8–12 repetition maximum). Body composition, muscular strength, functional capacity, and dietary intake were assessed pre- and post-intervention. Two-way analysis of covariance (ANCOVA) for repeated measures, with baseline scores as covariates were used for data analysis. A time vs. group interaction (p < 0.05) was observed with WP-PLA and PLA-WP presenting greater increases compared with PLA-PLA for SMM (WP-PLA = 3.4%; PLA-WP = 4.2%; PLA-PLA = 2.0%), strength (WP-PLA = 8.1%; PLA-WP = 8.3%; PLA-PLA = 7.0%), and the 10-m walk test (WP-PLA = −10.8%; PLA-WP = −11.8%; PLA-PLA = −4.3%). Whey protein supplementation was effective in promoting increases in SMM, muscular strength, and functional capacity in pre-conditioned older women, regardless of supplementation timing. This trial was registered at ClinicalTrials.gov: NCT03247192. MDPI 2018-05-03 /pmc/articles/PMC5986443/ /pubmed/29751507 http://dx.doi.org/10.3390/nu10050563 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nabuco, Hellen C. G.
Tomeleri, Crisieli M.
Sugihara Junior, Paulo
Fernandes, Rodrigo R.
Cavalcante, Edilaine F.
Antunes, Melissa
Ribeiro, Alex S.
Teixeira, Denilson C.
Silva, Analiza M.
Sardinha, Luís B.
Cyrino, Edilson S.
Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial
title Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial
title_full Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial
title_fullStr Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial
title_full_unstemmed Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial
title_short Effects of Whey Protein Supplementation Pre- or Post-Resistance Training on Muscle Mass, Muscular Strength, and Functional Capacity in Pre-Conditioned Older Women: A Randomized Clinical Trial
title_sort effects of whey protein supplementation pre- or post-resistance training on muscle mass, muscular strength, and functional capacity in pre-conditioned older women: a randomized clinical trial
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5986443/
https://www.ncbi.nlm.nih.gov/pubmed/29751507
http://dx.doi.org/10.3390/nu10050563
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