Test-retest reliability of non-invasive P2/P1 ratio and time to peak at rest and during isometric handgrip stress
The non-invasively measured P2/P1 ratio is a reliable metric in healthy young adults, maintaining its consistency even during significant cardiovascular stress. This study also establishes the MDC, providing a quantitative threshold to distinguish true physiological changes from measurement error. These findings support the use of the P2/P1 ratio for monitoring cerebrovascular dynamics and provide foundational data for future studies in clinical populations, such as critically ill patients.
Authors
- Vítor Oliveira Carvalho (ORCID: https://orcid.org/0000-0003-0007-2541)
- Rafael Pereira (ORCID: https://orcid.org/0000-0003-1800-1450)
- Alinne Alves Oliveira (ORCID: https://orcid.org/0000-0002-5616-2434)
- Filipe Lírio Malta
- Mansueto Gomes-Neto
- Gabriel Augusto Novaes (ORCID: https://orcid.org/0000-0002-4538-332X)
Institutions
- Southwest Bahia State University (BR)
Publication Details
- Journal
- Medical Engineering & Physics
- Published
- 2025-08-25
- DOI
- https://doi.org/10.1016/j.medengphy.2025.104421
- Citations
- 1
- Primary Topic
- Heart Rate Variability and Autonomic Control
- Type
- article
- Field-Weighted Citation Impact
- 1.39