EFEITOS DO EXERCÍCIO RESISTIDO AGUDO DE ALTA INTENSIDADE SOBRE A GLICEMIA E SENSIBILIDADE À INSULINA EM RATOS COM RESISTÊNCIA À INSULINA EFFECTS OF RESISTANCE EXERCISE HIGH INTENSITY ACUTE ON BLOOD GLUCOSE AND INSULIN SENSITIVITY IN RATS WITH INSULIN RESISTANCE

The aim of the study was to evaluate the acute resistance exercise on glucose metabolism in animals with insulin resistance induced. 30 Wistar rats were divided into three groups: control (CON), Dexamethasone Sedentary (DS) and dexamethasone + exercise (DE). Resistance exercise was conducted in the squat machine consists of five sets, 10 repetitions with intensity of 70% of 1RM. Concurrently, the DS and the groups received daily intraperitoneal dexamethasone (4.0mg / kg). They were measured body weight, glycemia and insulin sensitivity test of all groups. Single resistance exercise session reduced blood glucose levels and improved insulin sensitivity, the DT group showed lower area under the curve relative to the DS group. The high intensity acute resistance exercise promoted reduction of blood glucose levels and improved insulin sensitivity in rats with insulin resistance induced with dexamethasone.