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Low-frequency heart rate variability is related to the breath-to-breath variability in the respiratory pattern

Low-frequency heart rate variability is related to the breath-to-breath variability in the respiratory pattern
Low-frequency heart rate variability is related to the breath-to-breath variability in the respiratory pattern
Changes in heart rate variability (HRV) at “respiratory” frequencies (0.15–0.5?Hz) may result from changes in respiration rather than autonomic control. We now investigate if the differences in HRV power in the low-frequency (LF) band (0.05–0.15?Hz, HRVLF) can also be predicted by respiration variability, quantified by the fraction of tidal volume power in the LF (VLF,n). Three experimental protocols were considered: paced breathing, mental effort tasks, and a repeated attentional task. Significant intra- and interindividual correlations were found between changes in HRVLF and VLF,n despite all subjects having a respiratory frequency above the LF band. Respiratory parameters (respiratory period, tidal volume, and VLF,n) could predict up to 79% of HRVLF differences in some cases. This suggests that respiratory variability is another mechanism of HRVLF generation, which should be always monitored, assessed, and considered in the interpretation of HRV changes.
heart rate variability, respiration, spectral indexes
0048-5772
197-205
Beda, Alessandro
de2e8a78-d293-4c1a-bf9f-fcd384693690
Simpson, David M.
53674880-f381-4cc9-8505-6a97eeac3c2a
Carvalho, Nadja C.
1c293dbb-03ac-4e5b-86ac-578625e6569d
Carvalho, Alysson Roncally S.
86bae0f8-e451-4f9c-91fe-b0a73c1d9d21
Beda, Alessandro
de2e8a78-d293-4c1a-bf9f-fcd384693690
Simpson, David M.
53674880-f381-4cc9-8505-6a97eeac3c2a
Carvalho, Nadja C.
1c293dbb-03ac-4e5b-86ac-578625e6569d
Carvalho, Alysson Roncally S.
86bae0f8-e451-4f9c-91fe-b0a73c1d9d21

Beda, Alessandro, Simpson, David M., Carvalho, Nadja C. and Carvalho, Alysson Roncally S. (2013) Low-frequency heart rate variability is related to the breath-to-breath variability in the respiratory pattern. Psychophysiology, 51 (2), 197-205. (doi:10.1111/psyp.12163).

Record type: Article

Abstract

Changes in heart rate variability (HRV) at “respiratory” frequencies (0.15–0.5?Hz) may result from changes in respiration rather than autonomic control. We now investigate if the differences in HRV power in the low-frequency (LF) band (0.05–0.15?Hz, HRVLF) can also be predicted by respiration variability, quantified by the fraction of tidal volume power in the LF (VLF,n). Three experimental protocols were considered: paced breathing, mental effort tasks, and a repeated attentional task. Significant intra- and interindividual correlations were found between changes in HRVLF and VLF,n despite all subjects having a respiratory frequency above the LF band. Respiratory parameters (respiratory period, tidal volume, and VLF,n) could predict up to 79% of HRVLF differences in some cases. This suggests that respiratory variability is another mechanism of HRVLF generation, which should be always monitored, assessed, and considered in the interpretation of HRV changes.

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More information

Published date: 3 December 2013
Keywords: heart rate variability, respiration, spectral indexes
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 372481
URI: https://eprints.soton.ac.uk/id/eprint/372481
ISSN: 0048-5772
PURE UUID: cf61d1a3-cd96-4263-a93b-60c10a058811

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Date deposited: 11 Dec 2014 16:06
Last modified: 15 Jul 2019 21:36

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Contributors

Author: Alessandro Beda
Author: Nadja C. Carvalho
Author: Alysson Roncally S. Carvalho

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