The Influence Of Protein Supplementation On Muscle Strength, Glycemic Control, Functional Tasks, And Body Composition In Elderly Patients With Type 2 Diabetes Mellitus Submitted To A Program Of Resistance Exercises: Randomized Clinical Trial And Triple Blind

OBJECTIVES: To evaluate the effect of protein supplementation associated with resistance training (RT) on glycemic control, functional tasks, muscle strength, and body composition in elderly living with Type 2 Diabetes Mellitus (T2DM). Secondly, evaluate the safety of the protocol for renal function. METHODS: The population comprised of 26 older men with T2DM (68.5 ± 11.5 years). The individuals were randomly distributed into Protein Group (PG) and Control Group (CG). The handgrip test and one repetition maximum (1RM) evaluated muscle strength. Functional tasks were considered in the protocols of Sit-to-stand, Step/Quick Turn, and Step Up/Over, anthropometry, and body composition by bioimpedance. Biochemical analyses evaluated glycemic control and renal profile. Both groups performed RT for 12 weeks, twice a week, prioritizing large muscle groups. Protein supplementation was 20 g of whey protein and GC was supplemented with 20 g of maltodextrin. RESULTS: There was a significant difference in muscle strength measured by 1 RM in both groups, pre and post RT, However, there was no significant difference between the groups regarding handgrip and 1RM in the performance of functional tasks, glycemic control, or body composition. Renal function showed no alteration. CONCLUSION: The intake of 20 g of whey protein in the older men living with T2DM did not increase the effect of RT on muscle strength measurements, functional tasks, and glycemic control. The protocol is safe concerning renal function. Key Words: Type 2 Diabetes, Resistance Training, Postural Balance, Elderly, Whey Protein