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Factors Influencing Heart Rate01:30

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Anthropometric Predictors of Heart Rate Variability in Overweight Individuals: A Comparative Study.

Nisha Surana Gandhi1, Smita R Sorte2, Dipali K Chatur3

  • 1Physiology, Dr. Vithalrao Vikhe Patil Foundation's Medical College, Ahmednagar, Ahmednagar, IND.

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|October 16, 2024
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Summary

Heart rate variability (HRV) analysis reveals that anthropometric measures like waist circumference and waist-hip ratio, along with body mass index, indicate sympathetic hyperactivity. These indicators are crucial for early autonomic dysfunction diagnosis.

Keywords:
anthropometric parametersautonomic nervous system dysfunctionautonomic nervous system imbalancebody mass index: bmiheart rate variability (hrv)obesitypercentage body fatsympathetic hyperactivitywaist circumferencewaist-hip ratio

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Area of Science:

  • Cardiovascular Physiology
  • Autonomic Nervous System Function
  • Anthropometry

Background:

  • The autonomic nervous system regulates cardiovascular function through sympathetic and parasympathetic influences.
  • Heart rate variability (HRV) analysis non-invasively assesses autonomic function by examining beat-to-beat heart rate variations.
  • Understanding HRV in relation to anthropometric parameters is key for identifying cardiovascular risks.

Purpose of the Study:

  • To investigate heart rate variability (HRV) parameters in relation to various anthropometric measurements.
  • To compare HRV in individuals with different body mass index (BMI), body fat percentage (%BF), waist circumference (WC), and waist-hip ratio (WHR).
  • To identify gender-specific differences in HRV and anthropometric correlations.

Main Methods:

  • A descriptive cross-sectional study involving 132 healthy first-year MBBS students (82 males, 50 females, aged 17-23).
  • Measurements included anthropometric parameters (BMI, %BF, WC, WHR) and HRV.
  • Statistical analysis used the student 't' test and Pearson correlation coefficient.

Main Results:

  • The low-frequency:high-frequency (LF/HF) ratio showed strong positive correlations with BMI, %BF, WC, and WHR.
  • Waist circumference (WC) and waist-hip ratio (WHR) alongside BMI indicated sympathetic hyperactivity, particularly in males.
  • While gender-specific differences in high-frequency (HF) were observed, they were not statistically significant.

Conclusions:

  • Waist circumference (WC) and waist-hip ratio (WHR), in conjunction with BMI, are reliable indicators of heightened sympathetic activity.
  • These anthropometric measures are valuable for assessing sympathovagal balance and the early diagnosis of dysautonomia.
  • Proactive management of autonomic dysfunction and cardiovascular risks can be enhanced by utilizing these indicators.