Effects of soy protein versus whey protein supplementation in pre-frail and frail elderly submitted to strength training

• Grant number: 13/21226-7
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: December 01, 2014
• End date: October 31, 2017
• Field of knowledge: Health Sciences - Physical Education
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Bruno Gualano
• Grantee: Alan Lins Fernandes
• Host Institution: Escola de Educação Física e Esporte (EEFE). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Although the combination between strength training and high biological value protein supplementation represent a promising strategy to combat frailty in the elderly, few prospective researches are available. Not known, for example, the supplementation effects of different protein sources (e.g. whey and soy) combined with strength training in frail elderly. Therefore, the present research aim to compare the chronic effects of protein supplementation from different sources (whey and soy) on body composition and muscle function in older pre-frail and frail submitted a strength training exercise program. This clinical trial is one of the research included in the project titled Protein Intake and Resistance Training in Aging: The Pro Elderly Study, which aims primarily to investigate the role of different sources and types of proteins, amino acids and derivatives on muscle function and body composition in the frail elderly, and which is recorded in the clinical trials platform clinicaltrial.gov (NCT01890382). The present research will be conducted in a double-blind, randomized, following the recommendations established by the CONSORT (Altman, 1996). Before taking part in the intervention, the volunteers will undergo medical screening in order to verify the eligibility criteria to participate. The elderly volunteers (e 65 years) will be selected based on the Fried et al. (2001) criteria for pre-fragility and fragility. The volunteers will be randomly divided into 2 groups: 1) whey protein supplementation and 2) soy protein supplementation. All over 16 weeks, the volunteers will be supplemented with whey or soy protein and participate in a supervised strength training exercise program. Before and after the intervention, the volunteers carry out evaluations of food intake, body composition, muscle function, cross-sectional area, muscle fiber type and quality of life. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

FERNANDES, Alan Lins. Effects of soy protein supplementation versus whey protein in prefrail and frail elderly submitted to a resistance training program. 2017. Doctoral Thesis - Universidade de São Paulo (USP). Escola de Educação Física e Esportes (EEFE/BT) São Paulo.