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Wearable recording devices

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https://www.readbyqxmd.com/read/28638834/personalized-consent-flow-in-contemporary-data-sharing-for-medical-research-a-viewpoint
#1
Ester A Rake, Marleen M H J van Gelder, David C Grim, Barend Heeren, Lucien J L P G Engelen, Tom H van de Belt
BACKGROUND: Health data personally collected by individuals with wearable devices and smartphones is becoming an important data source for healthcare, but also for medical research. OBJECTIVE: To describe a new consent model that allows people to control their personally collected health data and determine to what extent they want to share these for research purposes. METHODS: We developed, in close collaboration with patients, researchers, healthcare professionals, privacy experts, and an accredited Medical Ethical Review Committee, an innovative concept called "personalized consent flow" within a research platform connected to a personal health record...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28597911/digitizing-medicines-for-remote-capture-of-oral-medication-adherence-using-co-encapsulation
#2
Sara H Browne, Charles Peloquin, Frank Santillo, Richard Haubrich, Leticia Muttera, Kathleen Moser, George Savage, Constance Benson, Terrence Blaschke
High-resolution measurement of medication adherence is essential to personalized drug therapy . An FDA-cleared device, using an edible ingestion sensor (IS), external wearable patch and paired mobile device, can detect and record ingestion events. Oral medications must be combined with an IS to generate precise 'digitized-medication' ingestion records. We developed a GMP-protocol to repackage oral medications with the IS within certified Capsugel® capsules, termed co-encapsulation (CoE). A randomized bioequivalence study of CoE-IS-Rifamate (Isoniazid/Rifampin 150/300mg) versus native-Rifamate was conducted in 12 patients with active Mycobacterium Tuberculosis (MTB) and demonstrated bioequivalence using the population method ratio test (95% CI)...
June 9, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28566138/a-newly-developed-ultraminiature-wearable-electromyogram-system-useful-for-analyses-of-masseteric-activity-during-the-whole-day
#3
Taihiko Yamaguchi, Saki Mikami, Miku Saito, Kazuki Okada, Akihito Gotouda
PURPOSE: We describe the characteristics of a new data-logger-type ultraminiature electromyogram (EMG) system (FLA-500-SD) and methods used for recording and we show its potential in clinical applications by presenting an example of a clinical case. METHOD: FLA contains electrodes, an amplifier, 12-bit analog-to-digital (A/D) converter at a sampling frequency of 1kHz, 16-bit CPU, a 3.7-V coin-shaped lithium battery, and a micro SD card. The size of FLA is 37.0×23...
May 26, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28555016/evaluation-of-feature-extraction-and-recognition-for-activity-monitoring-and-fall-detection-based-on-wearable-semg-sensors
#4
Xugang Xi, Minyan Tang, Seyed M Miran, Zhizeng Luo
As an essential subfield of context awareness, activity awareness, especially daily activity monitoring and fall detection, plays a significant role for elderly or frail people who need assistance in their daily activities. This study investigates the feature extraction and pattern recognition of surface electromyography (sEMG), with the purpose of determining the best features and classifiers of sEMG for daily living activities monitoring and fall detection. This is done by a serial of experiments. In the experiments, four channels of sEMG signal from wireless, wearable sensors located on lower limbs are recorded from three subjects while they perform seven activities of daily living (ADL)...
May 27, 2017: Sensors
https://www.readbyqxmd.com/read/28545575/impaired-chronotropic-response-to-physical-activities-in-heart-failure-patients
#5
Hong Shen, Jianrong Zhao, Xiaohong Zhou, Jingbo Li, Qing Wan, Jing Huang, Hui Li, Liqun Wu, Shungang Yang, Ping Wang
BACKGROUND: While exercise-based cardiac rehabilitation has a beneficial effect on heart failure hospitalization and mortality, it is limited by the presence of chronotropic incompetence (CI) in some patients. This study explored the feasibility of using wearable devices to assess impaired chronotropic response in heart failure patients. METHODS: Forty patients with heart failure (left ventricular ejection fraction, LVEF: 44.6 ± 5.8; age: 54.4 ± 11.7) received ECG Holter and accelerometer to monitor heart rate (HR) and physical activities during symptom-limited treadmill exercise testing, 6-min hall walk (6MHW), and 24-h daily living...
May 25, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28535341/fully-stretchable-optoelectronic-sensors-based-on-colloidal-quantum-dots-for-sensing-photoplethysmographic-signals
#6
Tae-Ho Kim, Chang-Seok Lee, Sangwon Kim, Jaehyun Hur, Sangmin Lee, Keun Wook Shin, Young-Zoon Yoon, Moon Kee Choi, Jiwoong Yang, Dae-Hyeong Kim, Taeghwan Hyeon, Seongjun Park, Sungwoo Hwang
Flexible and stretchable optoelectronic devices can be potentially applied in displays, biosensors, biomedicine, robotics, and energy generation. The use of nanomaterials with superior optical properties such as quantum dots (QDs) is important in the realization of wearable displays and biomedical devices, but specific structural design as well as selection of materials should preferentially accompany this technology to realize stretchable forms of these devices. Here, we report stretchable optoelectronic sensors manufactured using colloidal QDs and integrated with elastomeric substrates, whose optoelectronic properties are stable under various deformations...
May 26, 2017: ACS Nano
https://www.readbyqxmd.com/read/28522150/implementation-of-a-wearable-ultrasound-device-for-the-overnight-monitoring-of-tongue-base-deformation-during-obstructive-sleep-apnea-events
#7
Chi-Kai Weng, Jeng-Wen Chen, Po-Yang Lee, Chih-Chung Huang
Obstructive sleep apnea (OSA) is a breathing disorder characterized by the repeated collapse of the pharyngeal airway during sleep. Previous studies have reported that tongue base deformation may be a major contributing factor. However, overnight monitoring of tongue motion in patients with OSA has previously been impracticable. We developed a wearable ultrasound device for prolonged recording during natural sleep of the changes in tongue base thickness (TBT) in patients with OSA. The maximum TBT was fed into a polysomnography system so that physiologic signals and TBT data were simultaneously monitored...
May 15, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28508862/nanogenerator-based-dual-functional-and-self-powered-thin-patch-loudspeaker-or-microphone-for-flexible-electronics
#8
Wei Li, David Torres, Ramón Díaz, Zhengjun Wang, Changsheng Wu, Chuan Wang, Zhong Lin Wang, Nelson Sepúlveda
Ferroelectret nanogenerators were recently introduced as a promising alternative technology for harvesting kinetic energy. Here we report the device's intrinsic properties that allow for the bidirectional conversion of energy between electrical and mechanical domains; thus extending its potential use in wearable electronics beyond the power generation realm. This electromechanical coupling, combined with their flexibility and thin film-like form, bestows dual-functional transducing capabilities to the device that are used in this work to demonstrate its use as a thin, wearable and self-powered loudspeaker or microphone patch...
May 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28495352/reliability-of-commercially-available-sleep-and-activity-trackers-with-manual-switch-to-sleep-mode-activation-in-free-living-healthy-individuals
#9
Alexia Gruwez, Walter Libert, Lieveke Ameye, Marie Bruyneel
INTRODUCTION: Wearable health devices have become trendy among consumers, but it is not known whether they accurately measure sleep and physical activity parameters. To address this question, we have studied the measured data of two consumer-level activity monitors (Up Move Jawbone(®) (U) and Withings Pulse 02(®) (W)) and compared it with reference methods for sleep and activity recordings, namely the Bodymedia SenseWear Pro Armband(®) actigraph (SWA) and home-polysomnography (H-PSG)...
June 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/28495249/heart-rate-variability-to-monitor-performance-in-elite-athletes-criticalities-and-avoidable-pitfalls
#10
Daniela Lucini, Ilaria Marchetti, Antonio Spataro, Mara Malacarne, Manuela Benzi, Stefano Tamorri, Roberto Sala, Massimo Pagani
BACKGROUND: Spectral analysis of Heart Rate Variability (HRV) is a simple, non-invasive technique that is widely used in sport to assess sympatho-vagal regulation of the heart. Its employment is increasing partly due to the rising usage of wearable devices. However data acquisition using these devices may be suboptimal because they cannot discriminate between sinus and non-sinus beats and do not record any data regarding respiratory frequency. This information is mandatory for a correct clinical interpretation...
May 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28494333/implementing-monitoring-technologies-in-care-homes-for-people-with-dementia-a-qualitative-exploration-using-normalization-process-theory
#11
Alex Hall, Christine Brown Wilson, Emma Stanmore, Chris Todd
BACKGROUND: Ageing societies and a rising prevalence of dementia are associated with increasing demand for care home places. Monitoring technologies (e.g. bed-monitoring systems; wearable location-tracking devices) are appealing to care homes as they may enhance safety, increase resident freedom, and reduce staff burden. However, there are ethical concerns about the use of such technologies, and it is unclear how they might be implemented to deliver their full range of potential benefits...
April 27, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28487671/improved-mental-acuity-forecasting-with-an-individualized-quantitative-sleep-model
#12
Brent D Winslow, Nam Nguyen, Kimberly E Venta
Sleep impairment significantly alters human brain structure and cognitive function, but available evidence suggests that adults in developed nations are sleeping less. A growing body of research has sought to use sleep to forecast cognitive performance by modeling the relationship between the two, but has generally focused on vigilance rather than other cognitive constructs affected by sleep, such as reaction time, executive function, and working memory. Previous modeling efforts have also utilized subjective, self-reported sleep durations and were restricted to laboratory environments...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28481252/wearable-contactless-respiration-sensor-based-on-multi-material-fibers-integrated-into-textile
#13
Philippe Guay, Stepan Gorgutsa, Sophie LaRochelle, Younes Messaddeq
In this paper, we report on a novel sensor for the contactless monitoring of the respiration rate, made from multi-material fibers arranged in the form of spiral antenna (2.45 GHz central frequency). High flexibility of the used composite metal-glass-polymer fibers permits their integration into a cotton t-shirt without compromising comfort or restricting movement of the user. At the same time, change of the antenna geometry, due to the chest expansion and the displacement of the air volume in the lungs, is found to cause a significant shift of the antenna operational frequency, thus allowing respiration detection...
May 6, 2017: Sensors
https://www.readbyqxmd.com/read/28476662/a-novel-glm-based-method-for-the-automatic-identification-of-functional-events-aide-in-fnirs-data-recorded-in-naturalistic-environments
#14
Paola Pinti, Arcangelo Merla, Clarisse Aichelburg, Frida Lind, Sarah Power, Elizabeth Swingler, Antonia Hamilton, Sam Gilbert, Paul W Burgess, Ilias Tachtsidis
Recent technological advances have allowed the development of portable functional Near-Infrared Spectroscopy (fNIRS) devices that can be used to perform neuroimaging in the real-world. However, as real-world experiments are designed to mimic everyday life situations, the identification of event onsets can be extremely challenging and time-consuming. Here, we present a novel analysis method based on the general linear model (GLM) least square fit analysis for the Automatic IDentification of functional Events (or AIDE) directly from real-world fNIRS neuroimaging data...
May 2, 2017: NeuroImage
https://www.readbyqxmd.com/read/28423421/efficacy-of-some-wearable-devices-compared-with-spray-on-insect-repellents-for-the-yellow-fever-mosquito-aedes-aegypti-l-diptera-culicidae
#15
Stacy D Rodriguez, Hae-Na Chung, Kristina K Gonzales, Julia Vulcan, Yiyi Li, Jorge A Ahumada, Hector M Romero, Mario De La Torre, Fangjun Shu, Immo A Hansen
The current Zika health crisis in the Americas has created an intense interest in mosquito control methods and products. Mosquito vectors of Zika are of the genus Aedes, mainly the yellow fever mosquito, Aedes aegypti. L. The use of repellents to alter mosquito host seeking behavior is an effective method for the prevention of mosquito-borne diseases. A large number of different spray-on repellents and wearable repellent devices are commercially available. The efficacies of many repellents are unknown. This study focuses on the efficacy of eleven different repellents in reducing the number of Ae...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28420158/intelligent-medical-garments-with-graphene-functionalized-smart-cloth-ecg-sensors
#16
Murat Kaya Yapici, Tamador Elboshra Alkhidir
Biopotential signals are recorded mostly by using sticky, pre-gelled electrodes, which are not ideal for wearable, point-of-care monitoring where the usability of the personalized medical device depends critically on the level of comfort and wearability of the electrodes. We report a fully-wearable medical garment for mobile monitoring of cardiac biopotentials from the wrists or the neck with minimum restriction to regular clothing habits. The wearable prototype is based on elastic bands with graphene functionalized, textile electrodes and battery-powered, low-cost electronics for signal acquisition and wireless transmission...
April 16, 2017: Sensors
https://www.readbyqxmd.com/read/28368836/dreamer-a-database-for-emotion-recognition-through-eeg-and-ecg-signals-from-wireless-low-cost-off-the-shelf-devices
#17
Stamos Katsigiannis, Naeem Ramzan
In this work, we present DREAMER, a multi-modal database consisting of electroencephalogram (EEG) and electrocardiogram (ECG) signals recorded during affect elicitation by means of audio-visual stimuli. Signals from 23 participants were recorded along with the participants self-assessment of their affective state after each stimuli, in terms of valence, arousal, and dominance. All the signals were captured using portable, wearable, wireless, low-cost and off-the-shelf equipment that has the potential to allow the use of affective computing methods in everyday applications...
March 27, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28359342/measuring-the-impact-of-ambulatory-red-blood-cell-transfusion-on-home-functional-status-study-protocol-for-a-pilot-randomized-controlled-trial
#18
Dennis H Murphree, Theresa N Kinard, Nandita Khera, Curtis B Storlie, Che Ngufor, Sudhindra Upadhyaya, Jyotishman Pathak, Emma Fortune, Eapen K Jacob, Rickey E Carter, Karl A Poterack, Daryl J Kor
BACKGROUND: Red blood cell (RBC) transfusion is frequently employed in both ambulatory and hospital environments with the aim of improving patient functional status. In the ambulatory setting, this practice is particularly common in patients with malignancy due to anemia associated with their cancer therapy. Increasingly, the efficacy of this US$10.5 billion per year practice has been called into question. While it is often standard of care for patients with chemotherapy-induced anemia to receive ambulatory RBC transfusions, it is unclear to what extent such transfusions affect home functional status...
March 31, 2017: Trials
https://www.readbyqxmd.com/read/28326116/comparison-of-wearable-activity-tracker-with-actigraphy-for-sleep-evaluation-and-circadian-rest-activity-rhythm-measurement-in-healthy-young-adults
#19
Hyun-Ah Lee, Heon-Jeong Lee, Joung-Ho Moon, Taek Lee, Min-Gwan Kim, Hoh In, Chul-Hyun Cho, Leen Kim
OBJECTIVE: The purpose of this study was to evaluate the applicability of data obtained from a wearable activity tracker (Fitbit Charge HR) to medical research. This was performed by comparing the wearable activity tracker (Fitbit Charge HR) with actigraphy (Actiwatch 2) for sleep evaluation and circadian rest-activity rhythm measurement. METHODS: Sixteen healthy young adults (female participants, 62.5%; mean age, 22.8 years) wore the Fitbit Charge HR and the Actiwatch 2 on the same wrist; a sleep log was recorded over a 14-day period...
March 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28324936/a-preliminary-study-on-multi-wavelength-ppg-based-pulse-transit-time-detection-for-cuffless-blood-pressure-measurement
#20
Jing Liu, Yuan-Ting Zhang, Xiao-Rong Ding, Wen-Xuan Dai, Ni Zhao
Pulse transit time (PTT) has been widely studied as an index of blood pressure (BP) changes. In recent years, some prototypes of PTT-based wearable BP measurement devices have been developed, which can relieve users from the discomfort caused by the inflating cuff used in auscultatory and oscillometric BP measurement techniques. However, in the common practice for PTT detection, multi-site sensor implementation on human body is required, making it difficult for the integration of wearable devices. Since multi-wavelength (MW) photoplethysmogram (PPG) signals carry blood pulsation information of different blood vessels embedded in different skin depths, the time difference between different wavelength PPG signals collected at the same body site can be treated as a special PTT on a short length of blood vessels beneath the skin...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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