Results 31 to 40 of about 3,756 (169)

P137 NUMERICAL ASSESSMENT AND COMPARISON OF PULSE WAVE VELOCITY METHODS PRESUMING TO MEASURE AORTIC STIFFNESS

open access: yesArtery Research, 2017
Recently several methods have been proposed as tools to measure aortic pulse wave velocity (aPWV). The carotid-femoral pulse wave velocity (cf-PWV), the current clinical gold standard method for the noninvasive assessment of aPWV, uses the carotid ...
Hasan Obeid   +6 more
doaj   +1 more source

Wrist ballistocardiography and invasively recorded blood pressure in healthy volunteers during reclining bike exercise

open access: yesFrontiers in Physiology, 2023
Objective: Ballistocardiogram (BCG) features are of interest in wearable cardiovascular monitoring of cardiac performance. We assess feasibility of wrist acceleration BCG during exercise for estimating pulse transit time (PTT), enabling broader ...
Torjus L. Steffensen   +8 more
doaj   +1 more source

Investigation of Pulse Transit Times utilizing multisite reflectance photoplethysmography under conditions of artificially induced peripheral vasoconstriction [PDF]

open access: yes, 2014
Pulse Transit Time (PTT) is the time it takes for an arterial pulsation to travel from the heart to a peripheral site. In recent times, PTT has been advocated as a marker for assessing increased vascular resistance.
Budidha, K., Kyriacou, P. A.
core   +1 more source

Toward a Smartphone Application for Estimation of Pulse Transit Time

open access: yesSensors, 2015
Pulse transit time (PTT) is an important physiological parameter that directly correlates with the elasticity and compliance of vascular walls and variations in blood pressure.
He Liu   +3 more
doaj   +1 more source

Investigating properties of the cardiovascular system using innovative analysis algorithms based on ensemble empirical mode decomposition [PDF]

open access: yes, 2012
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited - Copyright @ 2012 Jia-Rong Yeh et al ...
Abbod, MF   +5 more
core   +2 more sources

Effect of Cuff Inflation on Blood Pressure, Arousals, Sleep Efficiency, and Desaturations: Sub-Analysis of the VAST Pilot Study

open access: yesDiagnostics, 2023
The influence of cuff inflations on night-time measurements during 24 h ambulatory blood pressure (BP) measurements is unknown. We investigated the potential effect of cuff inflations on sleep parameters using measurements taken simultaneously with a ...
Thenral Socrates   +5 more
doaj   +1 more source

A New Wearable Device for Blood Pressure Estimation Using Photoplethysmogram

open access: yesSensors, 2019
We present a novel smartwatch, CareUp ® , for estimating the Blood Pressure (BP) in real time. It consists of two pulse oximeters: one placed on the back and one on the front of the device.
Remo Lazazzera   +2 more
doaj   +1 more source

Cardiorespiratory changes associated with micro-arousals during naps

open access: yesNeurobiology of Sleep and Circadian Rhythms, 2023
The autonomic nervous system (ANS) and the central nervous system (CNS) interplay during sleep, particularly during phasic events such as micro-arousals, has been the subject of several studies. The underlying mechanisms of such relationship which remain
Elpidio Attoh-Mensah   +5 more
doaj   +1 more source

Pulse transit time as an index of vascular reactivity

open access: yesJournal of the Pakistan Medical Association
Pulse transit time (PTT) is a non-invasive method for measuring arterial compliance and stiffness, which are excellent predictors of cardiovascular disease. This study aims to determine whether PTT can be used to precisely monitor vascular reactivity in
Sheamaa Ahmed Abdullah   +2 more
doaj   +1 more source

Changes in the bilateral pulse transit time difference with a moving arm [PDF]

open access: yes, 2018
BACKGROUND: Changes of pulse transit time (PTT) induced by arm position were studied for unilateral arm. However, consistency of the PTT changes was not validated for both arm sides. OBJECTIVE: We aimed to quantify the PTT changes between horizontal
Allen   +19 more
core   +1 more source

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