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The Utility of Heart Rate Variability in Aviation and Space Medicine

Journal of the Australasian Society of Aerospace Medicine

Volume 14 (2025): Issue 1 (December 2025)

By: Karen Lindsay and Erik Van den Top

Open Access

|Dec 2025

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DOI: https://doi.org/10.2478/asam-2025-0002 | Journal eISSN: 2639-6416 | Journal ISSN: 1449-3764

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Language: English

Page range: 19 - 26

Published on: Dec 6, 2025

Published by: Australasian Society of Aerospace Medicine

In partnership with: Paradigm Publishing Services

Publication frequency: 1 issue per year

Keywords:

ANS: Autonomic nervous system,

PNS: Parasympathetic nervous system,

SNS: Sympathetic nervous system,

RR: Time between R-R intervals (ms) on an ECG lead,

RSA: Respiratory sinus arrhythmia is heart rate variability in synchrony with respiration,

by which the R-R interval on an ECG is shortened during inspiration and prolonged during expiration,

SDNN: Standard deviation of all normal-to-normal RR intervals (ms),

RMSSD: Root Mean Square of successive RR interval differences (ms),

pNN50: The percentage of intervals > 50 ms different from preceding interval,

ULF-HRV: Magnitude of variance in the frequency band 0.15-0.40 ,

LF-HRV: Magnitude of variance in the frequency band 0.04–0.15 Hz,

HF-HRV: Magnitude of variance in the frequency band 0.15-0.40,

LF/HF: ratio Low Frequency (LFn) (ms2)/High Frequency (HFn) (ms2)

Related subjects:

Basic medical science,

Basic medical science, other

© 2025 Karen Lindsay, Erik Van den Top, published by Australasian Society of Aerospace Medicine
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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