A massa muscular está positivamente associada com o número de refeições contendo 30 gramas de proteína em indivíduos que realizaram transplante renal

Abstract

INTRODUCTION: The relationship between the distribution of daily protein intake and muscle mass is not yet fully understood in the general population. In addition, to the best of our knowledge, no studies were found that associated protein consumption per meal with the muscle mass of kidney transplant patients. Aim: To associate the consumption of meals with 20 or 30g of protein with the muscle mass of kidney transplant patients. METHODOLOGY: A cross-sectional study was carried out with 125 kidney transplant patients. Body composition was assessed by tetrapolar electrical bioimpedance and muscle and fat-free mass were estimated using equations. The muscle mass index was obtained by dividing muscle mass in kilograms by height in meters squared. To assess food consumption, two 24-hour food recalls were performed using the “Five Steps Multiple Pass” method. The number of meals containing 20 or 30 g of protein were evaluated. RESULTS: The consumption of two or more meals with 30 g of protein was positively associated with muscle mass, regardless of sex, age, total protein, energy, physical activity, glomerular filtration rate and immunosuppressive and corticoid medications (Beta = 0.176; p = 0.022). The consumption of two or more meals with 20 g of protein showed a positive association with muscle mass in the model without adjustment, however this association was not significant after adjustments for confounding variables (Beta = 0.042; p = 0.539). Fat-free mass and IMM did not correlate with the number of meals with 20 and 30 grams of protein. CONCLUSION: The number of meals containing 30 g of protein was positively associated with muscle mass in kidney transplant patients.