Key result
Higher air temperatures link to elevated LF/HF ratios, with HRV predicting thermal comfort at ~87% accuracy.
Why the study?
The effects of short-term exposure to different indoor air temperature and humidity conditions on human thermal comfort and autonomic nervous system activity were not well characterized.
Population
Group of young adults
Comparison
Short-term exposure to different air temperature (24 °C–30 °C) and relative humidity (50%–70%) conditions
Design
Observational study using IoT-based cardiac assessment with PPG and BCG
Follow-up
Short-term exposure
Authors
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Supports IoT-based PPG/BCG cardiac monitoring in indoor settings; leaves open clinical validation before practice adoption.
Observational
An IoT system using PPG and BCG can unobtrusively assess cardiac and respiratory responses to indoor environmental changes, enabling accurate prediction of thermal comfort.
Rodrigues et al. (2022) conducted an observational in Thermal comfort. Different air temperature and humidity conditions was evaluated on Thermal comfort prediction using HRV parameters. Short-term exposure to higher air temperatures increased the LF/HF ratio indicating thermal discomfort, and HRV parameters predicted thermal comfort with 87% average accuracy.
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