Abstract
Exercise has positive chronotropic effect on heart rate and on cessation heart rate returns to pre- exercise level. A delay in heart rate recovery (HRR) (≤12beats in first minute) is considered abnormal and reflects autonomic dysfunction.The present study was taken up to find out the presence of abnormal HRR in normal subjects (Male) and to establish HRR as an independent autonomic marker. For the study 106 healthy young adults (male) were subjected to exercise by Bicycle ergometer till targeted Heart Rate (85%Maximum Heart Rate(MHR)) was achieved. HRR at the end of 1 minutefollowingcessation of exercise were tabulated. In our study 23(21.7%) subjects showed Abnormal HRR indicating HRR could be an independent autonomic marker. Keyword-HRR, MHR
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