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Updated: May 31, 2026
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Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver
Published on: June 27, 2025
Heart rate variability analysis using a ballistocardiogram during Valsalva manoeuvre and post exercise
Jae Hyuk Shin1, Su Hwan Hwang, Min Hye Chang
1Interdisciplinary program of Biomedical Engineering, Seoul National University, Seoul, Korea.
Physiological Measurement
|July 12, 2011
Summary
This study presents a new, unconstrained method to measure heart rate variability (HRV) using ballistocardiogram (BCG) signals. The ballistocardiographic HRV (B-HRV) accurately reflects cardiac autonomic modulation, comparable to electrocardiogram (ECG) derived HRV.
Area of Science:
- Biomedical Engineering
- Physiology
- Cardiovascular Research
Background:
- Heart rate variability (HRV) analysis is crucial for assessing cardiac autonomic function.
- Current HRV measurement often requires constrained setups, limiting naturalistic monitoring.
- Ballistocardiography (BCG) offers a potential non-constrained alternative for physiological signal acquisition.
Purpose of the Study:
- To introduce and validate a novel, non-constrained technique for estimating HRV using BCG signals.
- To assess the efficacy of BCG-derived HRV (B-HRV) in analyzing cardiac autonomic modulation.
- To compare B-HRV parameters with traditional ECG-derived HRV under various physiological conditions.
Main Methods:
- A novel non-constrained technique was developed to derive HRV from BCG signals.
- HRV parameters were calculated from BCG (B-HRV) and ECG (reference) in 15 healthy subjects.
- Analyses included time, frequency, and nonlinear domains under resting, Valsalva maneuver, and post-exercise conditions.
Main Results:
- The B-HRV method demonstrated high accuracy, with low average relative errors (5.01-5.98%) compared to ECG.
- Excellent correlation coefficients (0.97-0.98) were observed between B-HRV and ECG-derived HRV.
- B-HRV parameters exhibited similar patterns of change to ECG-HRV during autonomic modulation, reflecting sympathetic and parasympathetic activity.
Conclusions:
- BCG provides an accurate and reliable non-constrained method for estimating HRV.
- B-HRV can effectively evaluate autonomic system activation.
- This technique holds promise for unobtrusive, long-term cardiovascular autonomic monitoring.
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