SCG variability and spectral energy distribution during normal breathing and breath hold at different lung volumes and airway pressures.
Breath hold
Intrathoracic pressure
Normal breathing
SCG
Spectral energy
Variability
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
02 Aug 2024
02 Aug 2024
Historique:
received:
27
01
2024
accepted:
25
07
2024
medline:
3
8
2024
pubmed:
3
8
2024
entrez:
2
8
2024
Statut:
epublish
Résumé
Seismocardiographic (SCG) signals are chest wall vibrations induced by cardiac activity and are potentially useful for cardiac monitoring and diagnosis. SCG waveform is observed to vary with respiration, but the mechanism of these changes is poorly understood as alterations in autonomic tone, lung volume, heart location and intrathoracic pressure are all varying during the respiratory cycle. Understanding SCG variability and its sources may help reduce variability and increase SCG clinical utility. This study investigated SCG variability during breath holding (BH) at two different lung volumes (i.e., end inspiration and end expiration) and five airway pressures (i.e., 0, ± 2-4, and ± 15-20 cm H
Identifiants
pubmed: 39095411
doi: 10.1038/s41598-024-68590-6
pii: 10.1038/s41598-024-68590-6
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
17904Subventions
Organisme : National Science Foundation
ID : FW-HTF-P 2026516
Organisme : NHLBI NIH HHS
ID : R44 HL099053
Pays : United States
Informations de copyright
© 2024. The Author(s).
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