Results 21 to 30 of about 41,408 (263)

Profiling the propagation of error from PPG to HRV features in a wearable physiological-monitoring device

open access: yesHealthcare Technology Letters, 2018
Wearable physiological monitors are becoming increasingly commonplace in the consumer domain, but in literature there exists no substantive studies of their performance when measuring the physiology of ambulatory patients.
Davide Morelli   +4 more
doaj   +1 more source

Deep CNN-LSTM With Self-Attention Model for Human Activity Recognition Using Wearable Sensor

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2022
Human Activity Recognition (HAR) systems are devised for continuously observing human behavior - primarily in the fields of environmental compatibility, sports injury detection, senior care, rehabilitation, entertainment, and the surveillance in ...
Mst. Alema Khatun   +9 more
doaj   +1 more source

Cardiorespiratory fitness, but not physical activity, is associated with academic achievement in children and adolescents

open access: yesAnnals of Human Biology, 2017
Background: Cardiorespiratory fitness (CRF) and physical activity (PA) seem to have positive effects on academic achievement (AA), although in most studies, objective methods of assessment have not been used.
Tânia Oliveira   +6 more
doaj   +1 more source

Identification of the Rumination in Cattle Using Support Vector Machines with Motion-Sensitive Bolus Sensors

open access: yesSensors, 2019
The reticuloruminal function is central to the digestive efficiency in ruminants. For cattle, collar- and ear tag-based accelerometer monitors have been developed to assess the time spent ruminating on an individual animal.
Andrew W. Hamilton   +7 more
doaj   +1 more source

An Integrated Testing Solution for Piezoelectric Sensors and Energy Harvesting Devices

open access: yesMeasurement Science Review, 2022
With the fast growth of wireless communications between nodes and sensor units and the increase of devices installed in remote places, and the development of IIoT applications, new requirements for power energy supply are needed to assure device ...
Pereira José Dias, Alves Mário
doaj   +1 more source

Inertial Sensors—Applications and Challenges in a Nutshell

open access: yesSensors, 2020
This editorial provides a concise introduction to the methods and applications of inertial sensors. We briefly describe the main characteristics of inertial sensors and highlight the broad range of applications as well as the methodological challenges ...
Thomas Seel, Manon Kok, Ryan S. McGinnis
doaj   +1 more source

Evaluation of the Continuous Wavelet Transform for Detection of Single-Point Rub in Aeroderivative Gas Turbines with Accelerometers

open access: yesSensors, 2018
A common fault in turbomachinery is rotor–casing rub. Shaft vibration, measured with proximity probes, is the most powerful indicator of rotor–stator rub.
Alejandro Silva   +3 more
doaj   +1 more source

Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall   +16 more
wiley   +1 more source

Validation of the GENEA Accelerometer [PDF]

open access: yesMedicine & Science in Sports & Exercise, 2011
The study aims were: 1) to assess the technical reliability and validity of the GENEA using a mechanical shaker; 2) to perform a GENEA value calibration to develop thresholds for sedentary and light-, moderate-, and vigorous-intensity physical activity; and 3) to compare the intensity classification of the GENEA with two widely used accelerometers.A ...
Dale W, Esliger   +5 more
openaire   +2 more sources

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi   +17 more
wiley   +1 more source

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