Novel technology to help understand the context of physical activity and sedentary behaviour.


:When used in large, national surveillance programmes, objective measurement tools provide prevalence estimates of low physical activity guideline compliance and high amounts of sedentary time. There are undoubtedly a plethora of reasons for this but one possible contributing factor is the current lack of behavioural context offered by accelerometers and posture sensors. Context includes information such as where the behaviour occurs, the type of activity being performed and is vital in allowing greater refinement of intervention strategies. Novel technologies are emerging with the potential to provide this information. Example data from three ongoing studies is used to illustrate the utility of these technologies. Study one assesses the concurrent validity of electrical energy monitoring and wearable cameras as measures of television viewing. This study found that on average the television is switched on for 202 min d-1 but is visible in just 90 min of wearable camera images with a further 52 min where the participant is in their living room but the television is not visible in the image. Study two utilises indoor location monitoring to assess where older adult care home residents accumulate their sedentary time. This study found that residents were highly sedentary (sitting for an average of 720 min d-1) and spent the majority of their time in their own rooms with more time spent in communal areas in the morning than in the afternoon. Lastly, study three discusses the use of proximity sensors to quantify exposure to a height adjustable desk. These studies are example applications of this technology, with many other technologies available and applications possible. The adoption of these technologies will provide researchers with a more complete understanding of the behaviour than has previously been available.


Physiol Meas


Loveday A,Sherar LB,Sanders JP,Sanderson PW,Esliger DW




Has Abstract


2016-10-01 00:00:00












  • Network proteomics of human dermal wound healing.

    abstract:OBJECTIVE:The healing of wounds is critical in protecting the human body against environmental factors. The mechanisms involving protein expression during this complex physiological process have not been fully elucidated. APPROACH:Here, we use reverse-phase protein microarrays (RPPA) involving 94 phosphoproteins to st...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Gao X,Petricoin EF 3rd,Ward KR,Goldberg SR,Duane TM,Bonchev D,Arodz T,Diegelmann RF

    更新日期:2018-12-07 00:00:00

  • Multichannel simultaneous magnetic induction measurement system (MUSIMITOS).

    abstract::Non-contact heart and lung activity monitoring would be a desirable supplement to conventional monitoring techniques. Based on the potential of non-contact magnetic induction measurements, requirements for an adequate monitoring system were estimated. This formed the basis for the development of the presented extendab...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Steffen M,Heimann K,Bernstein N,Leonhardt S

    更新日期:2008-06-01 00:00:00

  • New electrohysterogram-based estimators of intrauterine pressure signal, tonus and contraction peak for non-invasive labor monitoring.

    abstract:BACKGROUND:Uterine activity monitoring is an essential part of managing the progress of pregnancy and labor. Although intrauterine pressure (IUP) is the only reliable method of estimating uterine mechanical activity, it is highly invasive. Since there is a direct relationship between the electrical and mechanical activ...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Benalcazar-Parra C,Garcia-Casado J,Ye-Lin Y,Alberola-Rubio J,Lopez Á,Perales-Marin A,Prats-Boluda G

    更新日期:2019-09-03 00:00:00

  • Single-sector thermophysiological human simulator.

    abstract::Thermal sweating manikins are used to analyse the heat and mass transfer phenomena in the skin-clothing-environment system. However, the limiting factor of present thermal manikins is their inability to simulate adequately the human thermal behaviour, which has a significant effect on the clothing microenvironment. A ...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Psikuta A,Richards M,Fiala D

    更新日期:2008-02-01 00:00:00

  • The effect of fracture and fracture fixation on ultrasonic velocity and attenuation.

    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

    pub_type: 临床试验,杂志文章


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

    更新日期:1996-08-01 00:00:00

  • Video rate electrical impedance tomography of vascular changes: preclinical development.

    abstract::Peripheral vasculature disease is strongly correlated with cardiovascular-associated mortality. Monitoring circulation health, especially in the peripheral limbs, is vital to detecting clinically significant disease at a stage when it can still be addressed through medical intervention. Electrical impedance tomography...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Halter R,Hartov A,Paulsen K

    更新日期:2008-03-01 00:00:00

  • Patient examinations using electrical impedance tomography--sources of interference in the intensive care unit.

    abstract::Electrical impedance tomography (EIT) is expected to become a valuable tool for monitoring mechanically ventilated patients due to its ability to continuously assess regional lung ventilation and aeration. Several sources of interference with EIT examinations exist in intensive care units (ICU). Our objectives are to ...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Frerichs I,Pulletz S,Elke G,Gawelczyk B,Frerichs A,Weiler N

    更新日期:2011-12-01 00:00:00

  • Reference intervals for the evoked tympanic membrane displacement measurement: a non-invasive measure of intracranial pressure.

    abstract:OBJECTIVE:Evoked tympanic membrane displacement (TMD) is a non-invasive technique for assessing intracranial pressure (ICP). The aim of this study was to define reference intervals (RIs) in the healthy population. APPROACH:Measurements were made in 154 healthy adults. Results were quantified by V m, which is the most ...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Campbell-Bell CM,Birch AA,Vignali D,Bulters D,Marchbanks RJ

    更新日期:2018-01-31 00:00:00

  • Are ejection fractions from gated SPECT perfusion studies clinically useful? A comparison with radionuclide ventriculography.

    abstract::Gated SPECT (GSPECT) was evaluated for the measurement of left ventricular ejection fraction (LVEF) by comparing with equilibrium gated radionuclide ventriculography (RNVG). A total of 99 subjects underwent GSPECT and RNVG imaging. All studies were acquired in list mode with GSPECT studies processed to give 16- and 8-...

    journal_title:Physiological measurement

    pub_type: 临床试验,杂志文章


    authors: Wright GA,McDade M,Keeble W,Martin W,Hutton I

    更新日期:2001-05-01 00:00:00

  • Fetal QRS detection and heart rate estimation: a wavelet-based approach.

    abstract::Fetal heart rate monitoring is used for pregnancy surveillance in obstetric units all over the world but in spite of recent advances in analysis methods, there are still inherent technical limitations that bound its contribution to the improvement of perinatal indicators. In this work, a previously published wavelet t...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Almeida R,Gonçalves H,Bernardes J,Rocha AP

    更新日期:2014-08-01 00:00:00

  • The effect of serial data collection on the accuracy of electrical impedance tomography images.

    abstract::There has been a surge of interest in using electrical impedance tomography (EIT) for monitoring regional lung ventilation, however, EIT is an ill-conditioned problem, and errors/noise in the boundary voltages can have an undesirable effect on the quality of the final image. Most EIT systems in clinical usage use seri...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Yerworth R,Bayford R

    更新日期:2013-06-01 00:00:00

  • Cardiorespiratory coupling in young healthy subjects.

    abstract:OBJECTIVE:To quantify the presence of cardiorespiratory interaction in a group of 41 healthy subjects performing a subset of the Ewing test battery. APPROACH:We measure the empirical distribution of the cardiorespiratory coupling time (RI), defined as the time from inspiration onset to R peaks in the ECG. The study pr...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Sobiech T,Buchner T,Krzesiński P,Gielerak G

    更新日期:2017-11-30 00:00:00

  • Static conductivity imaging using variational gradient Bz algorithm in magnetic resonance electrical impedance tomography.

    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

    pub_type: 杂志文章


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

    更新日期:2004-02-01 00:00:00

  • Video and audio processing in paediatrics: a review.

    abstract:OBJECTIVE:Video and sound acquisition and processing technologies have seen great improvements in recent decades, with many applications in the biomedical area. The aim of this paper is to review the overall state of the art of advances within these topics in paediatrics and to evaluate their potential application for ...

    journal_title:Physiological measurement

    pub_type: 杂志文章,评审


    authors: Cabon S,Porée F,Simon A,Rosec O,Pladys P,Carrault G

    更新日期:2019-02-26 00:00:00

  • Dynamics of tissue shrinkage during ablative temperature exposures.

    abstract::There is a lack of studies that examine the dynamics of heat-induced shrinkage of organ tissues. Clinical procedures such as radiofrequency ablation, microwave ablation or high-intensity focused ultrasound, use heat to treat diseases such as cancer and cardiac arrhythmia. When heat is applied to tissues, shrinkage occ...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Rossmann C,Garrett-Mayer E,Rattay F,Haemmerich D

    更新日期:2014-01-01 00:00:00

  • A clinical distortion index for compressed echocardiogram evaluation: recommendations for Xvid codec.

    abstract::This paper introduces a new clinical distortion index able to measure the decrease in diagnostic content in compressed echocardiograms. It is calculated using cardiologists' answers to a clinical testbed composed of two types of tests: one blind and the other semi-blind. This index may be used to compare clinical perf...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Alesanco A,Hernández C,Portolés A,Ramos L,Aured C,García M,Serrano P,García J

    更新日期:2009-05-01 00:00:00

  • Machine learning for nocturnal mass diagnosis of atrial fibrillation in a population at risk of sleep-disordered breathing.

    abstract:OBJECTIVE:In this research, we introduce a new methodology for atrial fibrillation (AF) diagnosis during sleep in a large population sample at risk of sleep-disordered breathing. APPROACH:The approach leverages digital biomarkers and recent advances in machine learning (ML) for mass AF diagnosis from overnight-hours o...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Chocron A,Efraim R,Mandel F,Rueschman M,Palmius N,Penzel T,Elbaz M,Behar JA

    更新日期:2020-11-06 00:00:00

  • A method of reducing the error caused by boundary shape and electrode positions in electrical impedance tomography.

    abstract::This paper describes a method of reducing the influence of the data error caused by non-ideal boundary shape and electrode placement on reconstructed images. A data calibration and a modified Newton-Raphson reconstruction are combined in the method to ensure rapid convergence and small reconstruction error. The method...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Li J

    更新日期:1994-05-01 00:00:00

  • Reproducibility of regional lung ventilation distribution determined by electrical impedance tomography during mechanical ventilation.

    abstract::Electrical impedance tomography (EIT) has the potential to become a new tool for bedside monitoring of regional lung ventilation. The aim of our study was to assess the reproducibility of regional lung ventilation distribution determined by EIT during mechanical ventilation under identical ventilator settings. The exp...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Frerichs I,Schmitz G,Pulletz S,Schädler D,Zick G,Scholz J,Weiler N

    更新日期:2007-07-01 00:00:00

  • Daily physical activity patterns from hip- and wrist-worn accelerometers.

    abstract::Accelerometer wear location may influence physical activity estimates. This study investigates this relationship through the examination of activity patterns throughout the day. Participants from the aging research evaluating accelerometry (AREA) study (n men  =  37, n women  =  47, mean age (SD)  =  78.9 (5.5) years)...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Shiroma EJ,Schepps MA,Harezlak J,Chen KY,Matthews CE,Koster A,Caserotti P,Glynn NW,Harris TB

    更新日期:2016-10-01 00:00:00

  • Non-invasive, side-selective nasal airflow monitoring.

    abstract::Nasal obstruction disturbs comfort during daytime, and sleep quality. Convenient objective assessment of nasal ventilation would be desirable. Therefore, we developed a technique for unobtrusive monitoring of bilateral nasal airflow. Nasal cannulae with separated left- and right-sided tubings were connected to two pre...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Kohler M,Thurnheer R,Bloch KE

    更新日期:2005-02-01 00:00:00

  • Specific heat capacity of freshly excised prostate specimens.

    abstract::The specific heat capacity of tissue is a critical parameter for thermal therapies that act over a long period of time. It is also critical for thermoacoustic signal generation. We present ex vivo measurements of specific heat capacity performed by a dual-pin probe with tight temperature control of the specimen. One 3...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Patch SK,Rao N,Kelly H,Jacobsohn K,See WA

    更新日期:2011-11-01 00:00:00

  • Influence of tidal volume and positive end-expiratory pressure on ventilation distribution and oxygenation during one-lung ventilation.

    abstract:OBJECTIVE:The aim of the study was to explore the feasibility of titrating tidal volume (V T) and positive end-expiratory pressure (PEEP) during one-lung ventilation (OLV) based on ventilation distribution and oxygenation. APPROACH:Twenty-four consecutive patients requiring intubation with a double-lumen tube and subs...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Zhao Z,Wang W,Zhang Z,Xu M,Frerichs I,Wu J,Moeller K

    更新日期:2018-03-29 00:00:00

  • Thermography and colour duplex ultrasound assessments of arterio-venous fistula function in renal patients.

    abstract::Vascular and clinical assessments of arterio-venous fistula (AVF) function and access are important in patients undergoing or preparing to undergo renal dialysis. Objective assessment techniques include colour duplex ultrasound and more recently medical infrared thermography. Ideally, these should help assess problems...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Allen J,Oates CP,Chishti AD,Ahmed IA,Talbot D,Murray A

    更新日期:2006-01-01 00:00:00

  • An abdominal wall simulator for testing suprapubic urinary catheters.

    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

    pub_type: 杂志文章


    authors: Coveney VA,Gröver D

    更新日期:2001-08-01 00:00:00

  • A comparison of methods for estimating left ventricular volumes from radionuclide ventriculography.

    abstract::An accurate reproducible measurement of left ventricular volume is important in the evaluation of cardiac disease. Four methods of left ventricular volume measurement by radionuclide ventriculography have been compared and their reproducibility assessed in a patient group. The methods studied were a geometric method, ...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Thorley PJ,Sheard KL,Rees MR

    更新日期:1993-02-01 00:00:00

  • Cardio-respiratory signal extraction from video camera data for continuous non-contact vital sign monitoring using deep learning.

    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

    pub_type: 杂志文章


    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

  • Assessment of the dynamic interactions between heart rate and arterial pressure by the cross time-frequency analysis.

    abstract::In this study, a framework for the characterization of the dynamic interactions between RR variability (RRV) and systolic arterial pressure variability (SAPV) is proposed. The methodology accounts for the intrinsic non-stationarity of the cardiovascular system and includes the assessment of both the strength and the p...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Orini M,Laguna P,Mainardi LT,Bailón R

    更新日期:2012-03-01 00:00:00

  • Feasible assessment of recovery and cardiovascular health: accuracy of nocturnal HR and HRV assessed via ring PPG in comparison to medical grade ECG.

    abstract:OBJECTIVE:To validate the accuracy of the Oura ring in the quantification of resting heart rate (HR) and heart rate variability (HRV). BACKGROUND:Wearable devices have become comfortable, lightweight, and technologically advanced for assessing health behavior. As an example, the novel Oura ring integrates daily physic...

    journal_title:Physiological measurement

    pub_type: 杂志文章


    authors: Kinnunen H,Rantanen A,Kenttä T,Koskimäki H

    更新日期:2020-05-07 00:00:00

  • A pH-mucosa area unit of measure to consider morphology of the oesophagus when evaluating oesophagitis.

    abstract::Gastro-oesophageal pH measurements are routinely carried out to quantify and determine if levels of acid reflux are responsible for symptoms. Although considered the 'gold standard', evidence suggests that pH measurements do not correlate well with the degree of oesophagitis seen during endoscopy. In this study the cu...

    journal_title:Physiological measurement

    pub_type: 临床试验,杂志文章


    authors: Haylett KR,Vales P,Lee SH,McCloy RF

    更新日期:2003-11-01 00:00:00