摘要：Kelly JS, Delaney J, Wiggins T. Heart Rate Recovery from Peak Exercise and Cardiac Autonomic Control in Male Coronary Heart Disease Patients. JEPonline 2011;14(4):64-74. Heart rate recovery (HRR) from maximal exercise is due in part to changes in autonomic balance in favor of the parasympathetic arm of the autonomic nervous system. Heart rate variability (HRV) analysis allows for a non-invasive measurement of autonomic balance. Both HRR and autonomic function are compromised in patients with coronary heart disease (CHD). The aim of this investigation was to determine HRR from maximal exercise in patients with CHD and to correlate that measure with indices of their autonomic function. Forty-eight male patients with CHD (17 post-coronary artery bypass graft surgery, 31 following a myocardial infarction; 24 of whom were taking beta blockers and 7 who were not) and 8 sedentary controls matched for body mass and age were recruited to the study. Subjects completed a graded exercise treadmill test to volitional exhaustion. Heart rate at 1 min post-cessation of exercise was recorded. On a separate occasion, the subjects’ autonomic function was assessed using HRV analysis. Although the results showed no difference in exercise capacity between the two groups, the control group had markedly better HRR and a superior autonomic function. Indices of HRV were correlated with HRR but not exercise capacity.
