Greater Reduction of Blood Pressure with Exercise Intervention Than Standard Care After Recent Ischaemic Atroke: A Randomized Clinical Trial
Abstract Context and Objectives: Ischaemic stroke (IS) causes disability and uses massive public health resources. Cumulative disability from recurrence may be reduced with cardiometabolic risk reduction strategies e.g., lowering blood pressure (BP). We hypothesized that intensive exercise plus best available care in adults with recent IS improves fitness, glucose metabolism, muscle protein synthesis in paretic limbs compared to controls. BP changes were compared between intervention (INT) and controls (CON). Research Design and Setting: A randomised, interventional clinical trial conducted in Jamaican adults subjects: We investigate 103 adults with recent IS and residual weakness. Forty-nine subjects (24 women: mean age 61.5; 25 men: mean age 63.8) received task-oriented exercise training (TEXT) plus best available care. Fifty-four subjects (23 women: mean age 60.2; 31 men: mean age 61.3) received best care, including exercise advice. Measurements: We measured baseline, 3-month and 6-month BP. Results: After recent IS, TEXT plus best available care reduced systolic BP by 21 mmHg and diastolic by 12 mmHg compared to controls, independent of medication adherence, body composition; stroke severity. Men in the TEXT group had increased lean mass (P < 0.007), VO2 max (P = 0.03); 6-minute walk distance (P = 0.003). Leg press on paretic (P = 0.004) and non-paretic (P < 0.001) increased with TEXT vs CON over 6 months, in both sexes (P-values for sex difference > 0.2). Time-to-chair-rise decreased in both sexes who received intervention vs controls (P <0.04) Conclusions: TEXT results in significant blood pressure reduction in adults with recent ischaemic stroke and residual weakness when compared with best available medical care only.