Nutrition assistance improves skeletal muscle function and performance in community-dwelling older women
Assistência nutricional melhora o desempenho muscular esquelético de mulheres idosas residentes na comunidade
Geriatr., Gerontol. Aging (Online); 16 (), 2022
Publication year: 2022
To analyze the effects of nutritional assistance focusing on protein intake (in the
individual’s usual diet) in relation to muscle mass, and the muscle strength and functional
performance of community-dwelling older women.
Methods:
This is a non-randomized controlled clinical trial. Forty-three community-dwelling older women, who were allocated to the Control Group (CG; n = 20) or the Nutrition Group (NG; n = 23). The NG received individualized nutrition assistance and participated in group activities that focused on dietary protein intake once a week for 12 weeks.Main outcome measures:
protein and energy intake; handgrip strength (HGS); gait speed (GS); quadriceps cross-sectional area (CSA); and intramuscular non-contractile tissue (IMNCT). The Student’s t-test for independent samples, the Mann-Whitney U test, and a mixed model ANOVA with two factors (group and time) were adopted, followed by a post hoc Bonferroni test. A Spearman’s correlation test was performed on tests for HGS; GS; CSA; IMNCT; age; and protein intake adjusted for weight (g/kg) (p ≤ 0.050).Results:
Participants in the NG showed higher CSA values than those in the CG (p < 0.001). NG participants also had higher HGS (p < 0.001) and GS (p = 0.037) when compared to pre-intervention. Correlations were observed between IMNCT and protein intake adjusted for weight (g/kg) (r = -0.517; p = 0.020); HGS, and CSA (r = 0.827; p = 0.000); and CSA and age (r = -0.520, p = 0.009).
Analisar os efeitos da assistência nutricional com foco na ingestão proteica (na dieta
habitual do indivíduo) em relação a massa muscular, força muscular e desempenho funcional de
idosas de uma comunidade.