Results 41 to 50 of about 445,703 (277)

Telemonitoring Techniques for Lung Volume Measurement: Accuracy, Artifacts and Effort

Frontiers in Digital Health, 2020
Telemonitoring becomes more important in pulmonary research. It can be used to decrease the pressure on the health care system, to lower the costs of health care and to increase quality of life of patients.
Denise C. Mannée, Frans de Jongh, Hanneke van Helvoort   +2 more
doaj   +1 more source

Bio-Impedance Measurement Optimization for High-Resolution Carotid Pulse Sensing

Sensors, 2021
Continuous hemodynamic monitoring is important for long-term cardiovascular healthcare, especially in hypertension. The impedance plethysmography (IPG) based carotid pulse sensing is a non-invasive diagnosis technique for measuring pulse signals and ...
Ting-Wei Wang, Hsiao-Wei Chu, Lin Chou, Yen-Ling Sung, Yuan-Ta Shih, Po-Chun Hsu, Hao-Min Cheng, Shien-Fong Lin   +7 more
doaj   +1 more source

Instantaneous Respiratory Estimation from Thoracic Impedance by Empirical Mode Decomposition

Sensors, 2015
Impedance plethysmography provides a way to measure respiratory activity by sensing the change of thoracic impedance caused by inspiration and expiration.
Fu-Tai Wang, Hsiao-Lung Chan, Chun-Li Wang, Hung-Ming Jian, Sheng-Hsiung Lin   +4 more
doaj   +1 more source

Prediction of fat-free mass in a multi-ethnic cohort of infants using bioelectrical impedance: Validation against the PEA POD

Frontiers in Nutrition, 2022
BackgroundBioelectrical impedance analysis (BIA) is widely used to measure body composition but has not been adequately evaluated in infancy. Prior studies have largely been of poor quality, and few included healthy term-born offspring, so it is unclear ...
Jaz Lyons-Reid, Leigh C. Ward, José G. B. Derraik, José G. B. Derraik, José G. B. Derraik, José G. B. Derraik, Mya-Thway Tint, Mya-Thway Tint, Cathriona R. Monnard, Jose M. Ramos Nieves, Benjamin B. Albert, Timothy Kenealy, Timothy Kenealy, Keith M. Godfrey, Keith M. Godfrey, Shiao-Yng Chan, Shiao-Yng Chan, Wayne S. Cutfield, Wayne S. Cutfield   +18 more
doaj   +1 more source

Complex impedance measurements of calorimeters and bolometers: correction for stray impedances [PDF]

Rev.Sci.Instrum.78:043105,2007, 2007
Impedance measurements provide a useful probe of the physics of bolometers and calorimeters. We describe a method for measuring the complex impedance of these devices. In previous work, stray impedances and readout electronics of the measurement apparatus have resulted in artifacts in the impedance data.
arxiv   +1 more source

Development of a real-time, semi-capacitive impedance phlebography device

Journal of Electrical Bioimpedance, 2015
Chronic venous insufficiency of the lower limbs is a disease which is caused by an increased blood pressure inside the veins of the leg and the resulting increase of the contained blood volume.
Weyer Sören, Weber Hannes, Kleeberg Christian, Leonhardt Steffen, Wartzek Tobias   +4 more
doaj   +1 more source

Impedance of a sphere oscillating in an elastic medium with and without slip [PDF]

J. Acoust. Soc. Am. 119(4), 2062-2066, 2006., 2006
The dynamic impedance of a sphere oscillating in an elastic medium is considered. Oestreicher's formula for the impedance of a sphere bonded to the surrounding medium can be expressed simply in terms of three lumped impedances associated with the displaced mass and the longitudinal and transverse waves.
arxiv   +1 more source

Body fat measurement by bioelectrical impedance and air displacement plethysmography: a cross-validation study to design bioelectrical impedance equations in Mexican adults

Nutrition Journal, 2007
Background The study of body composition in specific populations by techniques such as bio-impedance analysis (BIA) requires validation based on standard reference methods. The aim of this study was to develop and cross-validate a predictive equation for
Valencia Mauro E, Esparza-Romero Julián, Alemán-Mateo Heliodoro, Macias Nayeli   +3 more
doaj   +1 more source

Automatic Non-Invasive Isolation of Respiratory Cycles [PDF]

arXiv, 2022
In this paper, we introduce a novel algorithm designed to isolate individual respiratory cycles on a thoracic respiratory inductance plethysmography signal. The algorithm locates breaths using signal processing and statistical methods and enables the analysis of sleep data on an individual breath level.
arxiv  

Bio-electrical impedence plethysmography-designing an efficient non-invasive electrode for cardiac rate analysis

International Journal of Endorsing Health Science Research, 2013
Cardiac rate analysis is constituted as one of the most essential parts of physiological patient monitoring. In this research paper, it has been investigated that electrical impedance plethysmography is the most conducive technique for this purpose.
Daniya Umer, Ghanwa Ellahi, Warda Ellahi, Saba Ayub, Zia Mohy Ud Din   +4 more
doaj   +1 more source