According to the comparison of sensing modalities, what physiological target does Heart Rate Variability (HRV) measure?
Answer
Autonomic Nervous System Balance.
The modality of Heart Rate Variability (HRV) is utilized in stress monitoring as a specific tool to assess the overall regulation within the body's internal control system. HRV specifically measures the subtle variations in the time interval between consecutive heartbeats, which provides insight into the interplay between the sympathetic (fight-or-flight) and parasympathetic (rest-and-digest) branches of the nervous system. Tracking this balance is considered valuable for assessing long-term recovery status and monitoring the effects of chronic stress rather than just immediate arousal events.
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