Skip to main content

Inter-day reliability of heart rate complexity and variability metrics in healthy highly active younger and older adults

Fennell, Christopher, Mauger, Alexis R., Hopker, James G. (2023) Inter-day reliability of heart rate complexity and variability metrics in healthy highly active younger and older adults. European Journal of Applied Physiology, . ISSN 1439-6319. E-ISSN 1439-6327. (doi:10.1007/s00421-023-05373-3) (KAR id:103906)

PDF Publisher pdf
Language: English


Download this file
(PDF/1MB)
[thumbnail of C. Fennell - Inter-day reliability of heart rate complexity and variability metrics - PPDF.pdf]
Preview
Request a format suitable for use with assistive technology e.g. a screenreader
PDF Author's Accepted Manuscript
Language: English

Restricted to Repository staff only until 6 December 2024.
Contact us about this Publication
[thumbnail of Inter-day reliability of HRV metrics.pdf]
Official URL:
https://doi.org/10.1007/s00421-023-05373-3

Abstract

To investigate the inter-day reliability of time-domain, frequency-domain, and nonlinear HRV metrics in healthy highly active younger and older adults. The study also assessed the effect of age on the HRV metrics. Forty-four older adults (34 M, 10F; 59 ± 5 years; [Formula: see text]  = 40.9 ± 7.6 ml kg min ) and twenty-two younger adults (16 M, 6F; 22 ± 4 years; [Formula: see text]  = 47.2 ± 12.8 ml kg min ) attended the laboratory. Visit one assessed aerobic fitness through an exercise test. In visits two and three, participants completed a 30-min supine RR interval measurement to derive the HRV metrics. The younger group (YG) and older group (OG) demonstrated poor to good day-to-day relative and absolute reliability for all HRV metrics (OG, ICCs = 0.33 to 0.69 and between day CVs = 3.8 to 29.2%; YG, ICCs = 0.37 to 0.93 and between day CVs = 3.5 to 36.5%). There was a significant reduction in ApEn (P < 0.001), SampEn (P = 0.031), RMSSD (P < 0.001), SDNN (P < 0.001), LF power (P < 0.001) and HF power (P < 0.001), HRV metrics with ageing. There was no significant effect of age the complexity metrics DFA α1 (P = 0.107), α2 (P = 0.147) and CI-8 (P = 0.493). HRV metrics are reproducible between days in both healthy highly active younger and older adults. There is a decline in linear and nonlinear HRV metrics with age, albeit there being no age-related change in the nonlinear metrics, DFA α1, α2 and CI-8.

Item Type: Article
DOI/Identification number: 10.1007/s00421-023-05373-3
Uncontrolled keywords: Complexity, Ageing, Reproducibility, Heart rate
Subjects: G Geography. Anthropology. Recreation > GV Recreation. Leisure > Sports sciences
Divisions: Divisions > Division of Natural Sciences > Sport and Exercise Sciences
Funders: University of Kent (https://ror.org/00xkeyj56)
Depositing User: James Hopker
Date Deposited: 14 Nov 2023 13:38 UTC
Last Modified: 21 Feb 2024 15:39 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/103906 (The current URI for this page, for reference purposes)

University of Kent Author Information

Fennell, Christopher.

Creator's ORCID:
CReDIT Contributor Roles:

Mauger, Alexis R..

Creator's ORCID: https://orcid.org/0000-0001-6685-5800
CReDIT Contributor Roles:

Hopker, James G..

Creator's ORCID: https://orcid.org/0000-0002-4786-7037
CReDIT Contributor Roles:
  • Depositors only (login required):

Total unique views for this document in KAR since July 2020. For more details click on the image.