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Reference values for heart rate variability in older adults: A systematic review.
Alaine Souza Lima Rocha1,2, Vitória de Barros Siqueira3, Paula Andreatta Maduro1
1Programa de Pós Graduação em Ciências da Saúde - Universidade de Pernambuco, Recife, PE, Brazil.
Psychophysiology
|July 29, 2024
Summary
Reference values for heart rate variability (HRV) in older adults are highly variable due to a lack of standardized assessment methods. More research is needed to establish reliable HRV metrics for this population.
Area of Science:
- Gerontology
- Cardiology
- Biomedical Engineering
Background:
- Heart rate variability (HRV) analysis is crucial for assessing health risks in older adults.
- Early detection of health conditions in aging populations relies on robust physiological markers.
- Standardized HRV parameters are needed for accurate health assessments in the elderly.
Purpose of the Study:
- To systematically review and describe reference values for HRV parameters in older adults.
- To identify existing literature on HRV in aging populations.
- To highlight the variability and limitations in current HRV research for older adults.
Main Methods:
- Systematic literature review across major scientific databases (PubMed, EMBASE, Scopus, WOS).
- Inclusion criteria focused on studies reporting reference values for linear HRV measures in older adults.
- Analysis of 11 eligible studies out of 1618 identified articles.
Main Results:
- Significant variability observed in HRV measures (RR intervals, SDNN, RMSSD, PNN50, LF, HF, LF/HF ratio) across studies.
- Sample sizes in included studies ranged from 21 to 6250 older adults.
- Lack of standardized methodologies for HRV assessment was a prominent finding.
Conclusions:
- Reference values for HRV in older adults are not consistent and vary widely.
- The current scientific literature on HRV reference values for this demographic is limited.
- Future research must prioritize standardized HRV assessment methods for older adults.
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