Resistance Exercise Elicits Acute Blood Pressure Reduction in Type 2 Diabetics

摘要

Sales MM, Segundo PR, Moreira SR, Santana HAP, Moraes JFVN, Asano RY, Motta DF, Dullius J, Sim?es HG, Campbell CSG. Resistance Exercise Elicits Acute Blood Pressure Reduction in Type 2 Diabetics. JEPonline 2012;15(1):98-109. Different exercise modes have been suggested as non-pharmacological treatment for the prevention and/or control of elevated blood pressure and glycemia. Therefore, with objective of the analyze the occurrence of postexercise hypotension (PEH) to aerobic (AE) and resistance exercises (RE) in type-2 diabetics, nine type 2 diabetics performed: 1) 20-min of cycling (AE) at lactate threshold intensity; 2) RE at 70% of 1RM; and 3) control session (CONT). Heart rate (HR), blood pressure (BP), blood lactate ([lac]), oxygen consumption (VO2) and rate of perceived exertion (RPE) were measured at rest, exercise or CONT and postsession recovery. Mean VO2 (mL·kg-1 ·min-1) of RE (10.6 ± 1.7) was lower than AE (13.3 ± 1.4) (P<0.05). VO2 peak measured immediately after each RE bout (17.5 ± 3.4) was higher than in AE (P<0.05). The RE but not AE elicited PEH (P<0.05). The mean arterial pressure decrease after 1 hr of recovery in RE by ~5.3 mmHg, while AE elicited a non-significant decrease of ~1.9 mmHg. Only the 70% of 1RM RE circuit training model promoted PEH in type 2 diabetic individuals, perhaps, due to the higher cardiovascular and metabolic stress when compared to the AE session.