The Influence of Whey Protein on Muscle Strength, Glycemic Control and Functional Tasks in Older Adults with Type 2 Diabetes Mellitus in a Resistance Exercise Program: Randomized and Triple Blind Clinical Trial
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Published:2023-05-20
Issue:10
Volume:20
Page:5891
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ISSN:1660-4601
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Container-title:International Journal of Environmental Research and Public Health
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language:en
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Short-container-title:IJERPH
Author:
Soares André Luiz de Seixas12, Machado-Lima Adriana13ORCID, Brech Guilherme Carlos13ORCID, Greve Júlia Maria D’Andréa3, dos Santos Joselma Rodrigues3, Inojossa Thiago Resende3, Rogero Marcelo Macedo4ORCID, Salles João Eduardo Nunes5, Santarem-Sobrinho José Maria6, Davis Catherine L.2, Alonso Angelica Castilho13ORCID
Affiliation:
1. Program in Aging Sciences, Universidade São Judas Tadeu (USJT), São Paulo 03166-000, SP, Brazil 2. Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA 3. Laboratory Study of Movement, Instituto de Ortopedia e Traumatologia do Hospital das Clínicas (IOT-HC), Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo 05402-000, SP, Brazil 4. Department of Nutrition, Faculty of Public Health, FMSUP, São Paulo 01151-000, SP, Brazil 5. Department of Internal Medicine, The Discipline of Endocrinology, Santa Casa of São Paulo Medical School, São Paulo 01224-001, SP, Brazil 6. Centro de Estudos em Ciências da Atividade Física-CECAFI-FMUSP, São Paulo 05403-010, SP, Brazil
Abstract
Objectives: To evaluate the effect of whey protein (WP) supplementation associated with resistance training (RT) on glycemic control, functional tasks, muscle strength, and body composition in older adults living with type 2 diabetes mellitus (T2DM). Secondly, to evaluate the safety of the protocol for renal function. Methods: The population comprised twenty-six older men living with T2DM (68.5 ± 11.5 years old). The participants were randomly assigned to the Protein Group (PG) and the Control Group (CG). The handgrip test and evolution of exercise loads, according to the Omni Resistance Exercise Scale, evaluated muscle strength. Functional tasks were assessed by force platform in three different protocols: Sit-to-Stand, Step/Quick Turn, and Step Up/Over. Body composition was evaluated by bioimpedance and glycemic control and renal function were assessed by biochemical analyses. Both groups performed RT for 12 weeks, twice a week, prioritizing large muscle groups. Protein supplementation was 20 g of whey protein isolate and the CG was supplemented with an isocaloric drink, containing 20 g of maltodextrin. Results: There was a significant difference in muscle strength, according to the evolution of the exercise loads, but it was not confirmed in the handgrip test. However, there was no significant difference between the groups, regarding performance in functional tasks, glycemic control, or body composition. Renal function showed no alteration. Conclusion: The intake of 20 g of WP in older male adults living with T2DM did not increase the effect of RT on muscle strength, functional tasks, and glycemic control. The intervention was proven safe regarding renal function.
Funder
Fundação de Amparo à Pesquisa de São Paulo (Foundation for Research Support) FAPESP
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health
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