Consumo de proteínas, vitamina D e antioxidantes em idosos avaliados em um ambulatório de nutrição e possíveis influências na massa muscular

Abstract

Aging is marked by hormonal changes, reduced muscle oxidation, increased fat mass, decreased muscle fiber size, and decreased type II fibers due to muscle disuse; concomitante to this, food consumption may interfere with muscle mass. Therefore, the evaluat ion of the intake of proteins, vitamin D and micronutrients which have antioxidant action and may affect muscle mass in the elderly is important. The present clinical trial is considered the proteins, vitamin D and antioxidants (vitamins A, C and E, zinc and selenium) of the elderly and are related to changes in skeletal muscle mass. Identification data, BMI, arm circumference, waist circumference and 24-hour food recalls were extracted from 12 patients at the Geriatrics Nutrition outpatient clinic of the Hospital Universitário da UFGD. The results showed inadequacy of most nutrients analyzed in relation to the recommended daily value for sex and age. It was possible to conclude that the dietary pattern of the evaluated population is contracted by the low absorption of proteins, vitamin D and the antioxidants. In this way, possibly a synthesis, function and muscular quality of the patients that may be impaired.