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https://www.readbyqxmd.com/read/28431622/quantitative-biomechanical-assessment-of-trunk-control-in-huntington-s-disease-reveals-more-impairment-in-static-than-dynamic-tasks
#1
Deb A Kegelmeyer, Sandra K Kostyk, Nora E Fritz, Marianne M Fiumedora, Ajit Chaudhari, Marilly Palettas, Gregory Young, Anne D Kloos
Postural instability is common in individuals with Huntington's disease (HD), yet little is known about control of the trunk during static and dynamic activities. We compared the trunk motion of 41 individuals with HD and 36 controls at thoracic and pelvic levels during sitting, standing, and walking using wearable iPod sensors. We also examined the ability of individuals with HD to respond to an auditory cue to modify trunk position when the pelvis moved >8° in sagittal or frontal planes during sitting using custom software...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28430147/suitability-of-strain-gage-sensors-for-integration-into-smart-sport-equipment-a-golf-club-example
#2
Anton Umek, Yuan Zhang, Sašo Tomažič, Anton Kos
Wearable devices and smart sport equipment are being increasingly used in amateur and professional sports. Smart sport equipment employs various sensors for detecting its state and actions. The correct choice of the most appropriate sensor(s) is of paramount importance for efficient and successful operation of sport equipment. When integrated into the sport equipment, ideal sensors are unobstructive, and do not change the functionality of the equipment. The article focuses on experiments for identification and selection of sensors that are suitable for the integration into a golf club with the final goal of their use in real time biofeedback applications...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28429757/soft-electronics-enabled-ergonomic-human-computer-interaction-for-swallowing-training
#3
Yongkuk Lee, Benjamin Nicholls, Dong Sup Lee, Yanfei Chen, Youngjae Chun, Chee Siang Ang, Woon-Hong Yeo
We introduce a skin-friendly electronic system that enables human-computer interaction (HCI) for swallowing training in dysphagia rehabilitation. For an ergonomic HCI, we utilize a soft, highly compliant ("skin-like") electrode, which addresses critical issues of an existing rigid and planar electrode combined with a problematic conductive electrolyte and adhesive pad. The skin-like electrode offers a highly conformal, user-comfortable interaction with the skin for long-term wearable, high-fidelity recording of swallowing electromyograms on the chin...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428770/prolonged-walking-with-a-wearable-system-providing-intelligent-auditory-input-in-people-with-parkinson-s-disease
#4
Pieter Ginis, Elke Heremans, Alberto Ferrari, Kim Dockx, Colleen G Canning, Alice Nieuwboer
Rhythmic auditory cueing is a well-accepted tool for gait rehabilitation in Parkinson's disease (PD), which can now be applied in a performance-adapted fashion due to technological advance. This study investigated the immediate differences on gait during a prolonged, 30 min, walk with performance-adapted (intelligent) auditory cueing and verbal feedback provided by a wearable sensor-based system as alternatives for traditional cueing. Additionally, potential effects on self-perceived fatigue were assessed...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28426512/technology-in-s-c-assessing-bodyweight-squat-technique-with-wearable-sensors
#5
Martin A O'Reilly, Darragh F Whelan, Tomas E Ward, Eamonn Delahunt, Brian M Caulfield
Strength and conditioning (S&C) coaches offer expert guidance to help those they work with achieve their personal fitness goals. However it is not always practical to operate under the direct supervision of an S&C coach and consequently individuals are often left training without expert oversight. Recent developments in inertial measurement units (IMUs) and mobile computing platforms have allowed for the possibility of unobtrusive motion tracking systems and the provision of real-time individualised feedback regarding exercise performance...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28424755/rapid-low-cost-prototyping-of-transdermal-devices-for-personal-healthcare-monitoring
#6
Sanjiv Sharma, Anwer Saeed, Christopher Johnson, Nikolaj Gadegaard, Anthony Eg Cass
The next generation of devices for personal healthcare monitoring will comprise molecular sensors to monitor analytes of interest in the skin compartment. Transdermal devices based on microneedles offer an excellent opportunity to explore the dynamics of molecular markers in the interstitial fluid, however good acceptability of these next generation devices will require several technical problems associated with current commercially available wearable sensors to be overcome. These particularly include reliability, comfort and cost...
April 2017: Sensing and Bio-Sensing Research
https://www.readbyqxmd.com/read/28422253/3d-printed-poly-vinylidene-fluoride-carbon-nanotube-composites-as-a-tunable-low-cost-chemical-vapour-sensing-platform
#7
Z C Kennedy, J F Christ, K A Evans, B W Arey, L E Sweet, M G Warner, R L Erikson, C A Barrett
We report the production of flexible, highly-conductive poly(vinylidene fluoride) (PVDF) and multi-walled carbon nanotube (MWCNT) composites as filament feedstock for 3D printing. This account further describes, for the first time, fused deposition modelling (FDM) derived 3D-printed objects with chemiresistive properties in response to volatile organic compounds. The typically prohibitive thermal expansion and die swell characteristics of PVDF were minimized by the presence of MWCNTs in the composites enabling straightforward processing and printing...
April 19, 2017: Nanoscale
https://www.readbyqxmd.com/read/28422044/design-of-flexible-pani-coated-cuo-tio2-sio2-heterostructure-nanofibers-with-high-ammonia-sensing-response-values
#8
Zengyuan Pang, Qingxin Nie, Pengfei Lv, Jian Yu, Fenglin Huang, Qufu Wei
We report a room temperature ammonia sensor with extra high response values and ideal flexibility, including polyaniline (PANI) coated titanium dioxide- silicon dioxide (TiO2-SiO2) or copper oxide- titanium dioxide- silicon dioxide (CuO-TiO2-SiO2) composite nanofibers. Such flexible inorganic TiO2-SiO2 and CuO-TiO2-SiO2 composite nanofibers were prepared by electrospinning, followed by calcination. Then in situ polymerization of aniline monomers was operated with inorganic TiO2-SiO2 and CuO-TiO2-SiO2 composite nanofibers as templates...
April 19, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28420998/instant-biofeedback-provided-by-wearable-sensor-technology-can-help-to-optimize-exercise-and-prevent-injury-and-overuse
#9
Peter Düking, Hans-Christer Holmberg, Billy Sperlich
No abstract text is available yet for this article.
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28420599/use-of-machine-learning-classifiers-and-sensor-data-to-detect-neurological-deficit-in-stroke-patients
#10
Eunjeong Park, Hyuk-Jae Chang, Hyo Suk Nam
BACKGROUND: The pronator drift test (PDT), a neurological examination, is widely used in clinics to measure motor weakness of stroke patients. OBJECTIVE: The aim of this study was to develop a PDT tool with machine learning classifiers to detect stroke symptoms based on quantification of proximal arm weakness using inertial sensors and signal processing. METHODS: We extracted features of drift and pronation from accelerometer signals of wearable devices on the inner wrists of 16 stroke patients and 10 healthy controls...
April 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28420483/an-evaluation-of-wearable-sensors-and-their-placements-for-analyzing-construction-worker-s-trunk-posture-in-laboratory-conditions
#11
Wonil Lee, Edmund Seto, Ken-Yu Lin, Giovanni C Migliaccio
This study investigates the effect of sensor placement on the analysis of trunk posture for construction activities using two off-the-shelf systems. Experiments were performed using a single-parameter monitoring wearable sensor (SPMWS), the ActiGraph GT9X Link, which was worn at six locations on the body, and a multi-parameter monitoring wearable sensor (MPMWS), the Zephyr BioHarness™3, which was worn at two body positions. One healthy male was recruited and conducted 10 experiment sessions to repeat measurements of trunk posture within our study...
April 15, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28420482/detection-of-driver-drowsiness-using-wearable-devices-a-feasibility-study-of-the-proximity-sensor
#12
Jibo He, William Choi, Yan Yang, Junshi Lu, Xiaohui Wu, Kaiping Peng
BACKGROUND: Drowsiness is one of the major factors that cause crashes in the transportation industry. Drowsiness detection systems can alert drowsy operators and potentially reduce the risk of crashes. In this study, a Google-Glass-based drowsiness detection system was developed and validated. METHODS: The proximity sensor of Google Glass was used to monitor eye blink frequency. A simulated driving study was carried out to validate the system. Driving performance and eye blinks were compared between the two states of alertness and drowsiness while driving...
April 15, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28420158/intelligent-medical-garments-with-graphene-functionalized-smart-cloth-ecg-sensors
#13
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/28417600/a-bioinspired-mineral-hydrogel-as-a-self-healable-mechanically-adaptable-ionic-skin-for-highly-sensitive-pressure-sensing
#14
Zhouyue Lei, Quankang Wang, Shengtong Sun, Wencheng Zhu, Peiyi Wu
In the past two decades, artificial skin-like materials have received increasing research interests for their broad applications in artificial intelligence, wearable devices, and soft robotics. However, profound challenges remain in terms of imitating human skin because of its unique combination of mechanical and sensory properties. In this work, a bioinspired mineral hydrogel is developed to fabricate a novel type of mechanically adaptable ionic skin sensor. Due to its unique viscoelastic properties, the hydrogel-based capacitive sensor is compliant, self-healable, and can sense subtle pressure changes, such as a gentle finger touch, human motion, or even small water droplets...
April 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28417536/stretchable-and-soft-electronics-using-liquid-metals
#15
REVIEW
Michael D Dickey
The use of liquid metals based on gallium for soft and stretchable electronics is discussed. This emerging class of electronics is motivated, in part, by the new opportunities that arise from devices that have mechanical properties similar to those encountered in the human experience, such as skin, tissue, textiles, and clothing. These types of electronics (e.g., wearable or implantable electronics, sensors for soft robotics, e-skin) must operate during deformation. Liquid metals are compelling materials for these applications because, in principle, they are infinitely deformable while retaining metallic conductivity...
April 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28413148/incorporating-site-less-clinical-trials-into-drug-development-a-framework-for-action
#16
Irl B Hirsch, Joe Martinez, E Ray Dorsey, Gerald Finken, Alexander Fleming, Chris Gropp, Philip Home, Daniel I Kaufer, Spyros Papapetropoulos
PURPOSE: Options for leveraging available telemedicine technologies, ranging from simple webcams and telephones to smartphone apps and medical-grade wearable sensors, are evolving faster than the culture of clinical research. Until recently, most clinical trials relied on paper-based processes and technology. This cost- and labor-intensive system, while slowly changing, remains an obstacle to new drug development. Alternatives that use existing tools and processes for collecting real-world data in home settings warrant closer examination...
April 13, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28411721/ergonomic-analysis-of-construction-worker-s-body-postures-using-wearable-mobile-sensors
#17
Nipun D Nath, Reza Akhavian, Amir H Behzadan
Construction jobs are more labor-intensive compared to other industries. As such, construction workers are often required to exceed their natural physical capability to cope with the increasing complexity and challenges in this industry. Over long periods of time, this sustained physical labor causes bodily injuries to the workers which in turn, conveys huge losses to the industry in terms of money, time, and productivity. Various safety and health organizations have established rules and regulations that limit the amount and intensity of workers' physical movements to mitigate work-related bodily injuries...
July 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28407507/concurrent-validation-of-an-index-to-estimate-fall-risk-in-community-dwelling-seniors-through-a-wireless-sensor-insole-system-a-pilot-study
#18
Mirko Di Rosa, Jeff M Hausdorff, Vera Stara, Lorena Rossi, Liam Glynn, Monica Casey, Stefan Burkard, Antonio Cherubini
Falls are a major health problem for older adults with immediate effects, such as fractures and head injuries, and longer term effects including fear of falling, loss of independence, and disability. The goals of the WIISEL project were to develop an unobtrusive, self-learning and wearable system aimed at assessing gait impairments and fall risk of older adults in the home setting; assessing activity and mobility in daily living conditions; identifying decline in mobility performance and detecting falls in the home setting...
April 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28405896/integrating-personalized-technology-in-toxicology-sensors-smart-glass-and-social-media-applications-in-toxicology-research
#19
Stephanie Carreiro, Peter R Chai, Jennifer Carey, Brittany Chapman, Edward W Boyer
Rapid proliferation of mobile technologies in social and healthcare spaces create an opportunity for advancement in research and clinical practice. The application of mobile, personalized technology in healthcare, referred to as mHealth, has not yet become routine in toxicology. However, key features of our practice environment, such as frequent need for remote evaluation, unreliable historical data from patients, and sensitive subject matter, make mHealth tools appealing solutions in comparison to traditional methods that collect retrospective or indirect data...
April 12, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28403865/implementing-360%C3%A2-quantified-self-for-childhood-obesity-feasibility-study-and-experiences-from-a-weight-loss-camp-in-qatar
#20
Luis Fernandez-Luque, Meghna Singh, Ferda Ofli, Yelena A Mejova, Ingmar Weber, Michael Aupetit, Sahar Karim Jreige, Ahmed Elmagarmid, Jaideep Srivastava, Mohamed Ahmedna
BACKGROUND: The explosion of consumer electronics and social media are facilitating the rise of the Quantified Self (QS) movement where millions of users are tracking various aspects of their daily life using social media, mobile technology, and wearable devices. Data from mobile phones, wearables and social media can facilitate a better understanding of the health behaviors of individuals. At the same time, there is an unprecedented increase in childhood obesity rates worldwide. This is a cause for grave concern due to its potential long-term health consequences (e...
April 13, 2017: BMC Medical Informatics and Decision Making
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