Treading on the unknown-the feasibility of a novel approach to investigating the motor control of walking.

abstract：:A photoplethysmographic (PPG) signal can provide very useful information about a subject's cardiovascular status. Motion artifacts (MAs), which usually deteriorate the waveform of a PPG signal, severely obstruct its applications in the clinical diagnosis and healthcare area. To reduce the MAs from a PPG signal, in the...

journal_title：Physiological measurement

authors： Peng F,Liu H,Wang W

更新日期：2015-10-01 00:00:00

abstract：OBJECTIVE:To investigate if modern seismocardiography (SCG) and ballistocardiography (BCG) are useful in the detection of hemodynamic changes occurring during simulated obstructive apneic events. METHODS:Forty-seven healthy volunteers performed a voluntary maximum Mueller maneuver (MM) for 10 s, and SCG and BCG signal...

journal_title：Physiological measurement

authors： Morra S,Hossein A,Gorlier D,Rabineau J,Chaumont M,Migeotte PF,Van De Borne P

更新日期：2020-07-09 00:00:00

abstract：:It has previously been shown that extreme changes in ambient air temperature can affect whole-body bioelectrical impedance. The purpose of this study was to determine if more moderate changes in ambient air temperature, such as those experienced in most laboratory settings, would also affect bioelectric impedance anal...

journal_title：Physiological measurement

authors： Buono MJ,Burke S,Endemann S,Graham H,Gressard C,Griswold L,Michalewicz B

更新日期：2004-02-01 00:00:00

abstract：:Body surface potential maps recorded during catheter pace mapping can facilitate the localization of the site of origin of ventricular tachycardia. In this study, we investigated the value of a realistic computer model of the human ventricular myocardium in generating body surface potential maps as templates for ident...

journal_title：Physiological measurement

authors： Hren R,Horácek BM

更新日期：1997-11-01 00:00:00

abstract：:During anaesthesia awareness and nociception are serious complications that may further lead to haemodynamic instability. Specific monitoring of depth of hypnosis and depth of analgesia based on heart rate variability (HRV) analysis is eligible to improve patient safety and reduce efforts in post-operative care. Conse...

journal_title：Physiological measurement

authors： Huhle R,Burghardt M,Zaunseder S,Wessel N,Koch T,Malberg H,Heller AR

更新日期：2012-02-01 00:00:00

abstract：:In this paper we present the concept, the design and the test procedure for a DSP-based high-precision and high-performance wide-band (up to 10 MHz) bioimpedance analyser module for application in EIT or bioimpedance spectroscopy. The module implements a digital concept with appropriate signal conditioning hardware fo...

journal_title：Physiological measurement

authors： Dudykevych T,Gersing E,Thiel F,Hellige G

更新日期：2001-02-01 00:00:00

abstract：:Urinary catheters (drainage tubes) are in widespread use. The most common type of long-term catheter is the Foley, which is made from natural or synthetic rubber. Foley catheters are passed into the bladder via the urethra or the suprapubic puncture channel (through the abdominal wall). A simulator for the abdominal w...

journal_title：Physiological measurement

authors： Coveney VA,Gröver D

更新日期：2001-08-01 00:00:00

abstract：:In recent AASM practice, parameter actimetry is cited to measure total sleep time in obstructive sleep apnoea patients, when polysomnography is not available. An actigraph was therefore compared to polysomnographic data in 28 subjects with known sleep disordered breathing. Total sleep time (TST), sleep period time (SP...

journal_title：Physiological measurement

authors： Dick R,Penzel T,Fietze I,Partinen M,Hein H,Schulz J

更新日期：2010-12-01 00:00:00

abstract：OBJECTIVE:PaCO2 affects cerebral blood flow (CBF) and its regulatory mechanisms, but the effects of CO2 measurement technique on cerebrovascular parameters are unknown. In order to determine if the two most commonly used approaches, face mask (FM) or nasal cannulae (NC), are interchangeable or not, we tested the hypoth...

journal_title：Physiological measurement

authors： Minhas JS,Robinson T,Panerai R

更新日期：2017-06-22 00:00:00

abstract：:Non-contact vital sign monitoring enables the estimation of vital signs, such as heart rate, respiratory rate and oxygen saturation (SpO2), by measuring subtle color changes on the skin surface using a video camera. For patients in a hospital ward, the main challenges in the development of continuous and robust non-co...

journal_title：Physiological measurement

authors： Chaichulee S,Villarroel M,Jorge J,Arteta C,McCormick K,Zisserman A,Tarassenko L

更新日期：2019-12-02 00:00:00

abstract：:Although cardiac arrhythmias have been studied extensively, little is known about arrhythmic phenomena in the gastrointestinal (GI) system. In this study, we demonstrate for the first time that the onset of GI arrhythmias is associated with statistically significant fluctuations in the information dimension of the ass...

journal_title：Physiological measurement

authors： Irimia A,Wikswo JP Jr

更新日期：2008-05-01 00:00:00

abstract：:The relation between the right-side (RS) electrical impedance phase angle (PA) and segmental PA in five configurations at 50 kHz was analyzed in 23 peritoneal dialysis male patients before complete drainage of the abdominal cavity. The impedance vector (Z/H) components were standardized by the height H of the subjects...

journal_title：Physiological measurement

authors： Nescolarde L,Rosell-Ferrer J,Doñate T

更新日期：2008-09-01 00:00:00

abstract：:Neuromagnetic recordings were used to check if electrical stimulation of the auditory nerve in cochlear-implant patients activates cortical auditory areas in a similar manner as acoustic stimulation in normal hearing subjects or whether the excitation processes are different. The waveform of the evoked magnetic field ...

journal_title：Physiological measurement

authors： Pelizzone M

更新日期：1993-11-01 00:00:00

abstract：:A new method to image and quantify intra-abdominal haemorrhage using electrical impedance tomography (EIT) was tested in vivo. Supine peritoneal dialysis patients were monitored using an 8-electrode hemiarray placed on the anterior abdomen. EIT measurements were recorded using the EPack II data acquisition system befo...

journal_title：Physiological measurement

authors： Tucker AS,Ross EA,Paugh-Miller J,Sadleir RJ

更新日期：2011-02-01 00:00:00

abstract：:Capnography is a continuous and noninvasive method for carbon dioxide (CO2) measurement, and it has become the standard of care for basic respiratory monitoring for intubated patients in the intensive care unit. In addition, it has been used to adjust ventilatory parameters during mechanical ventilation (MV). However,...

journal_title：Physiological measurement

authors： Rasera CC,Gewehr PM,Domingues AM

更新日期：2015-02-01 00:00:00

abstract：OBJECTIVE:To provide a non-invasive approach to monitoring lung function in spontaneously breathing lambs, from birth to five months of life, by the forced oscillation technique (FOT). This report describes the experimental set-up, data processing, and identification of normal predicted values of resistance (Rrs) and r...

journal_title：Physiological measurement

authors： Veneroni C,Dahl MJ,Lavizzari A,Dawson E,Rebentisch A,Studstill S,Bowen S,Albertine KH,Dellaca RL

更新日期：2019-11-04 00:00:00

abstract：:Capillary refill time (CRT) is a simple means of cardiovascular assessment which is widely used in clinical care. Currently, CRT is measured through manual assessment of the time taken for skin tone to return to normal colour following blanching of the skin surface. There is evidence to suggest that manually assessed ...

journal_title：Physiological measurement

authors： Blaxter LL,Morris DE,Crowe JA,Henry C,Hill S,Sharkey D,Vyas H,Hayes-Gill BR

更新日期：2016-01-01 00:00:00

abstract：:Skinfold anthropometry is a widely practiced technique often with little appreciation of its limitations. The large residual error appearing in any regressions of body density versus sums of skinfolds is primarily due to biological causes, in particular the non-constancy of the ratio of subcutaneous to total body fat....

journal_title：Physiological measurement

authors： Beddoe AH,Samat SB

更新日期：1998-08-01 00:00:00

abstract：:A new image reconstruction algorithm is proposed to visualize static conductivity images of a subject in magnetic resonance electrical impedance tomography (MREIT). Injecting electrical current into the subject through surface electrodes, we can measure the induced internal magnetic flux density B = (Bx, By, Bz) using...

journal_title：Physiological measurement

authors： Park C,Park EJ,Woo EJ,Kwon O,Seo JK

更新日期：2004-02-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to monitor the physiological changes and cytotoxic effects of exogenous contrast agents during photoacoustic imaging (PAI) and photothermal therapy (PTT). In this paper, a low-power telemetric device for mouse vital signs monitoring was designed and demonstrated. APPROACH:The power ...

journal_title：Physiological measurement

authors： Phan DT,Phan TTV,Bui NT,Park S,Choi J,Oh J

更新日期：2021-01-01 00:00:00

abstract：:The back-projected independent components (BICs) of single-trial, auditory P300 and contingent negative variation (CNV) evoked potentials (EPs) were derived using independent component analysis (ICA) and cluster analysis. The method was tested in simulation including a study of the electric dipole equivalents of the s...

journal_title：Physiological measurement

authors： Jervis B,Belal S,Camilleri K,Cassar T,Bigan C,Linden DE,Michalopoulos K,Zervakis M,Besleaga M,Fabri S,Muscat J

更新日期：2007-08-01 00:00:00

abstract：:Generalizability theory was used to investigate the score consistency of observed extracellular fluid/intracellular fluid (ECF/ICF) ratio measurements for both the global and leg-segmental bio-impedance spectroscopy methods. The test instrument used was a Xitron Hydra ECF/ICF Bio-Impedance Analyzer System, model 4200 ...

journal_title：Physiological measurement

authors： Turner AA,Lozano-Nieto A,Bouffard M

更新日期：2006-04-01 00:00:00

abstract：OBJECTIVE:This paper aims to present how physiological signals can be processed based on wavelet decomposition to calculate multiple physiological parameters in real-time on an embedded platform. APPROACH:An ECG and PPG are decomposed to the appropriate scale based on a quadratic spline wavelet base in order to obtain...

journal_title：Physiological measurement

authors： Tang M,Xia P,He Z,Zhao Z,Chen X,Yang T,Zhang Z,Zhan Q,Li X,Fang Z

更新日期：2020-03-06 00:00:00

abstract：:Measurement of the velocity of propagation and attenuation of ultrasound (200 kHz) is believed to be a useful non-invasive technique for assessing the mechanical properties of bone. A new method for the determination of ultrasound velocity and attenuation of longitudinal waves in cortical bone was used in vivo and in ...

journal_title：Physiological measurement

authors： Saulgozis J,Pontaga I,Lowet G,Van der Perre G

更新日期：1996-08-01 00:00:00

abstract：:Unstable gait is a risk factor for falls. Wearable accelerometers enable remote monitoring of daily walking. Here, new methods for measuring stride-to-stride oscillations are validated against optical motion capture, normative data determined, and dependency on walking speed investigated. Walks by 13 young people (mea...

journal_title：Physiological measurement

authors： Brodie MA,Beijer TR,Canning CG,Lord SR

更新日期：2015-05-01 00:00:00

abstract：:The changes in haemoglobin oxygenation (SO2) occurring in the tuberculin reaction in human skin were measured using macro- and micro-lightguide spectrophotometry and the results compared. A significant difference was found between the measurements from the respective instruments, demonstrating that the micro-lightguid...

journal_title：Physiological measurement

authors： Newton DJ,Harrison DK,Delaney CJ,Beck JS,McCollum PT

更新日期：1994-05-01 00:00:00

abstract：:The aim of this study was to analyse the feasibility of long-term measurements of cerebral (crSO2) and peripheral (prSO2) regional tissue oxygen saturation on the first day of life by determining the amount of artefacts and their influence on rSO2. Near infrared spectroscopy (NIRS) measurements were performed fronto-p...

journal_title：Physiological measurement

authors： Schmitz J,Pichler G,Schwaberger B,Urlesberger B,Baik N,Binder C

更新日期：2014-07-01 00:00:00

abstract：:There is considerable interest in unobtrusive and portable methods of monitoring sleepiness outside the laboratory setting. This study evaluates the usefulness of combined electrocardiogram (ECG) and photoplethysmogram (PPG) measurements for estimating psychomotor vigilance. The psychomotor vigilance test (PVT) was pe...

journal_title：Physiological measurement

authors： Chua CP,McDarby G,Heneghan C

更新日期：2008-08-01 00:00:00

abstract：:A coordinated study of the dispersal of water between the various body compartments (stomach and gut, blood stream and tissue) and the similar dispersal kinetics of ethanol and its metabolism has been carried out involving two healthy volunteers using flowing afterglow mass spectrometry, FA-MS, and selected ion flow t...

journal_title：Physiological measurement

authors： Spanel P,Wang T,Smith D

更新日期：2005-08-01 00:00:00

abstract：:Alzheimer's disease (AD) is a degenerative disease which causes serious cognitive decline. Studies suggest that effective treatments for AD may be aided by the detection of the disease in its early stages, prior to extensive neuronal degeneration. In this paper, we propose a set of novel techniques which could help to...

journal_title：Physiological measurement

authors： Woon WL,Cichocki A,Vialatte F,Musha T

更新日期：2007-04-01 00:00:00