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Ageing is a natural, physiological and markedly heterogeneous process; however, it is possible to modify the functional decline and to promote healthy ageing. The practise of physical exercise and nutrition have shown benefits in the promotion of a better quality of life (QoL). Objectives To verify whether protein supplementation associated with physical exercise contributes to the QoL of seniors living in the community. Methodology A clinical prospective, blind, randomized, placebo-controlled study with a control group was conducted. The sample was probabilistic and randomly assigned. They were distributed through the 4 arms of the study with 19 participants each:1-physical exercise (strength and endurance) + whey protein supplement (20g); 2-physical exercise (strength and endurance) + placebo; 3-only whey protein supplement (20g); 4-control (without intervention). Each group was assessed at baseline and past 12 weeks. QoL was evaluated through SF36, before and after the intervention. Descriptive and inferential statistics were used. Results The sample consisted of 79 individuals, 55 women and 25 men, with a mean age of 68.54±5.72, mean height 1.57±0.09m, mean weight 72.7±14.3kg, being homogeneous with respect to age by sex and the anthropometric characteristics (body mass index, arm and leg circumferences). The comparison between the pre and post-intervention results showed that groups 1 and 2 significantly improved their QoL (p &amp;lt; 0.05); patients in groups 1 and 3 improved substantially more than in groups 2 and 4 (p &amp;lt; 0.05). Subjects in group 4 worsened their outcomes in all domains of QoL assessed. Conclusion Protein supplementation showed a positive influence on the quality of life, primarily when associated with physical exercise. In fact, seniors who were not submitted to supplementation or a prescribed exercise showed a worsening of their quality of life throughout the study.

Effects of endurance and strength exercises associated with whey protein supplementation on quality of life (SF36) in community-dwelling seniors