Moderate intensity exercise improves heart rate variability in obese adults with type 2 diabetes
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Date
2018-07
Journal Title
Journal ISSN
Volume Title
Publisher
Cardiological Society of India
Abstract
Aim
The aim of this study was to determine the effect of moderate aerobic exercise on heart rate variability (HRV) in obese adults with type 2 diabetes.
Methods
Forty-one obese adults with type 2 diabetes participated in this study. Anthropometric and metabolic parameters were measured, and resting electrocardiogram (ECG) for the HRV analysis at spontaneous respiration was recorded for 5 min in supine position before and after six months of supervised aerobic training given thrice-a-week.
Results
The mean age, body mass index (BMI), and duration of diabetes of the study population were 44.1 ± 4.5 years, 30.94 ± 1.36 kg/m2, and 16.3 ± 2.7 years, respectively. In time domain variables, standard deviation of all RR intervals (SDNN), the square root of the mean of the sum of the squares of differences between adjacent RR intervals (RMSSD) and percentage of consecutive RR intervals that differ by more than 50 ms (pNN50) were significantly increased after exercise. In frequency domain variables, high frequency (HF) (ms2) and HF (nu) were significantly increased while low frequency (LF) (ms2) and LF/HF ratio were significantly decreased after exercise. But LF (nu) was unaffected after exercise.
Conclusion
This study suggests that thrice-a-week moderate intensity aerobic exercise for six months improves cardiac rhythm regulation as measured by HRV in obese adults with type 2 diabetes
Description
Keywords
Heart rate variability, Type 2 diabetes, Obesity, Aerobic exercise
Citation
Goit Rajesh Kumar, Pant Bhawana Neupane, Shrewastwa Mukesh Kumar. Moderate intensity exercise improves heart rate variability in obese adults with type 2 diabetes. Indian Heart Journal. 2018 Jul; 70(4): 486-491