Results 61 to 70 of about 11,388 (189)

Low Frequency Forced Oscillation Lung Function Test Can Distinguish Dynamic Tissue Non-linearity in COPD Patients

Frontiers in Physiology, 2019
This paper introduces the use of low frequencies forced oscillation technique (FOT) in the presence of breathing signal. The hypothesis tested is to evaluate the sensitivity of FOT to various degrees of obstruction in COPD patients. The measurements were
Maria Ghita, Maria Ghita, Dana Copot, Dana Copot, Mihaela Ghita, Mihaela Ghita, Eric Derom, Clara Ionescu, Clara Ionescu, Clara Ionescu   +9 more
doaj   +1 more source

Electrical impedance plethysmography versus tonometry to measure the pulse wave velocity in peripheral arteries in young healthy volunteers: a pilot study

Journal of Electrical Bioimpedance, 2021
The leading cause of health loss and deaths worldwide are cardiovascular diseases. A predictor of cardiovascular diseases and events is the arterial stiffness. The pulse wave velocity (PWV) can be used to estimate arterial stiffness non-invasively.
Wiegerinck A. I. P., Thomsen A., Hisdal J., Kalvøy H., Tronstad C.   +4 more
doaj   +1 more source

Durability as an index of endurance exercise performance: Methodological considerations

Experimental Physiology, EarlyView.
Abstract Endurance athletes routinely complete physiological assessments to predict performance, inform training programmes and monitor subsequent training adaptations. This profiling is typically performed with the athlete in a ‘fresh’ (i.e., rested) condition, but physiological profiling variables deteriorate during prolonged exercise. Durability has
Ben Hunter, Ed Maunder, Andrew M. Jones, Gabriele Gallo, Daniel Muniz‐Pumares   +4 more
wiley   +1 more source

Exact Green's functions and Bosonization of a Luttinger liquid coupled to impedances [PDF]

, 2007
The exact Green's functions of a finite-size Luttinger Liquid (LL) connected to impedances are computed at zero and finite temperature. Bosonization for a LL with Impedance boundary conditions (IBC) is proven to hold. The LL with open boundary conditions (for both Neumann and Dirichlet cases) is explicitly recovered as a special limit when one has ...
arxiv   +1 more source

The therapeutic role of exercise training during menopause for reducing vascular disease

Experimental Physiology, EarlyView.
Abstract Menopause marks a major milestone in female reproductive ageing. It is characterized by the cessation of ovarian function and a concomitant decline in hormones such as oestradiol. Subsequently, females undergoing menopausal transition experience a progressive increase in cardiovascular and cerebrovascular disease risk.
Conan L. H. Shing, Bert Bond, Kerrie L. Moreau, Jeff S. Coombes, Jenna L. Taylor   +4 more
wiley   +1 more source

Exploring the respiratory efficacy of combined chronic glucocorticoid and antioxidant interventions in the mdx mouse: The PREDNAC trial

Experimental Physiology, EarlyView.
Abstract Duchenne muscular dystrophy (DMD) is characterized by respiratory muscle injury and weakness, ultimately leading to respiratory failure. Impaired respiratory muscle performance, fibrosis and inflammation in early disease are evident in the dystrophin‐deficient mdx mouse model of DMD.
Michael N. Maxwell, Ben T. Murphy, Fiona B. McDonald, Ken D. O'Halloran   +3 more
wiley   +1 more source

Impact of artificial airway resistances on regional ventilation distribution during airway closure

Current Directions in Biomedical Engineering, 2020
Electrical impedance tomography (EIT), a noninvasive and radiation-free imaging technique can be used in pulmonary function monitoring for determining regional ventilation distribution within the lung.
März Melanie, Howe Sarah, Laufer Bernhard, Moeller Knut, Krueger-Ziolek Sabine   +4 more
doaj   +1 more source

Cocoa shell extract supplementation in hypertensive rats induces outward hypertrophic remodelling in mesenteric resistance arteries, reducing fibrosis

Experimental Physiology, EarlyView.
Abstract Hypertension is the leading risk factor for cardiovascular diseases and is difficult to control, putting the focus on foods and nutraceuticals. Cocoa has beneficial cardiovascular effects but generates large amounts of residues, such as cocoa shells, which contain bioactive molecules.
Pilar Rodríguez‐Rodríguez, Santiago Ruvira, Fatima Abderrahim, Dolores Morales, Metee Iampanichakul, Lucía Juárez, David Ramiro‐Cortijo, Silvia M. Arribas   +7 more
wiley   +1 more source

Algorithm for identifying and separating beats from arterial pulse records

BioMedical Engineering OnLine, 2005
Background This project was designed as an epidemiological aid-selecting tool for a small country health center with the general objective of screening out possible coronary patients.
Valentinuzzi Max E, Herrera Myriam C, Treo Ernesto F   +2 more
doaj   +1 more source

Mixer-First Receiver with wide-RF Range [PDF]

arXiv, 2019
In the Passive Mixer first receiver, four mosfet, and four baseband impedance can synthesize High-Q bandpass filter. This on-chip High-Q bandpass filter can replace bulky, expensive and off-chip SAW filters. The impedance which is seen by the antenna is tuned by switch resistance of the Passive Mixer and the input impedance of the Trans-impedance ...
arxiv