Comparison of Heart Rate Variability among Young Malay Male Adult with Different BMI and Level of Adiposity
- Author:
Norsham Juliana
- Collective Name: Mohd Effendy Nadia , Nadia Ahmad Roslan , Ahmad Rohi Ghazali , Nor Farah Mohamad Fauzi , Mohd Azmani Sahar , Ainul Huda Sulaiman , Abd Rahman Hayati , Abdul Latiff Mohamed
- Publication Type:Journal Article
- Keywords:
Autonomic regulation, Heart rate variability, Valsalva, Metabolic syndrome
- From:
The International Medical Journal Malaysia
2019;18(1):73-80
- CountryMalaysia
- Language:English
-
Abstract:
INTRODUCTION: Subclinical changes that occur in the heart at an early age may provide valuable
information to outline prevention strategies for cardiovascular diseases. Heart rate variability (HRV) reflects
regulation of autonomic balance, heart, and vascular tone, which are the determinants of blood pressure.
Therefore, this study aimed to determine the difference in heart rate variability (HRV) of Malay male young
adult with their BMI and adiposity level.
MATERIALS AND METHODS: A total of 201 Malay male young adult
aged between 19 to 24 years old were screened and their BMI and adiposity level were measured. Three non
-invasive tests; Valsalva Manoeuvre, orthostatic response and 30/15 ratio of heart rate were performed.
Short term HRV time and frequency domains were recorded.
RESULTS: Despite few significant differences in
HRV parameters of overweight/obese subjects, the result is inconclusive to conclude any reduced
variability. However, those with high adiposity regardless of their BMI reported significantly lower mean of R
-R SD in time domain and lower mean of LF/HF ratio in frequency domain. The orthostatic reflex results
revealed that high adiposity subjects had significantly lower mean of LF and HF. A decrement of -0.28 ms2
HF/LF during Valsalva manoeuvre, -0.35 LF ms2
in orthostatic reflex and 0.33 ms2
in orthostatic reflex per
1% of body fat percentage were observed.
CONCLUSION: HRV parameters were inversely proportional to the
adiposity level which was suggestive of modulation of sympathetic function can occur at an early age.
- Full text:180103.pdf
