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https://www.readbyqxmd.com/read/28637126/ecological-momentary-assessment-for-rehabilitation-of-chronic-illness-and-disability
#1
Ashlee McKeon, Michael McCue, Elizabeth Skidmore, Michelle Schein, Jamie Kulzer
PURPOSE: The main objectives of this manuscript were to provide a theoretical perspective on naturalistic delivery in rehabilitation based upon a literature review and establish a rationale for using ecological momentary assessment (EMA) for naturalistic assessment for chronic illness and disability (CID) in rehabilitation. METHOD: Existing literature on EMA use across CID cohorts was gathered and analyzed to form a theoretical overview of implementation of this method in research...
February 7, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28636323/ultrafast-dynamic-pressure-sensors-based-on-graphene-hybrid-structure
#2
Shanbiao Liu, Xing Wu, Dongdong Zhang, Congwei Guo, Peng Wang, Weida Hu, Xinming Li, Xiaofeng Zhou, Hejun Xu, Chen Luo, Jian Zhang, Jun-Hao Chu
The development of artificial skin is drawing tremendous attention due to its potential applications in sensing a variety of physical quantities, such as tactility, vibration, and temperature. A strain sensor that can mimic and surpass the subtle pressure-sensing properties of natural skin requires rational material design and array-accessible devices. Here, we report a new and facile preparation of a graphene hybrid structure with an ultrafast dynamic pressure response. Graphene oxide nanosheets are used as a surfactant to prevent graphene restacking in aqueous solution...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28636322/spirally-structured-conductive-composites-for-highly-stretchable-robust-conductors-and-sensors
#3
Xiaodong Wu, Yangyang Han, Xinxing Zhang, Canhui Lu
Flexible and stretchable electronics are highly desirable for next generation devices. However, stretchability and conductivity are fundamentally difficult to combine for conventional conductive composites, which restricts their widespread applications especially as stretchable electronics. Here, we innovatively develop a new class of highly stretchable and robust conductive composites via a simple and scalable structural approach. Briefly, carbon nanotubes are spray-coated onto a self-adhesive rubber film, followed by rolling up the film completely to create a spirally layered structure within the composites...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28633564/energy-harvesting-from-the-animal-human-body-for-self-powered-electronics
#4
Canan Dagdeviren, Zhou Li, Zhong Lin Wang
Living subjects (i.e., humans and animals) have abundant sources of energy in chemical, thermal, and mechanical forms. The use of these energies presents a viable way to overcome the battery capacity limitation that constrains the long-term operation of wearable/implantable devices. The intersection of novel materials and fabrication techniques offers boundless possibilities for the benefit of human health and well-being via various types of energy harvesters. This review summarizes the existing approaches that have been demonstrated to harvest energy from the bodies of living subjects for self-powered electronics...
June 21, 2017: Annual Review of Biomedical Engineering
https://www.readbyqxmd.com/read/28632385/fatigue-resistant-bioinspired-composite-from-synergistic-two-dimensional-nanocomponents
#5
Sijie Wan, Qi Zhang, Xiaohang Zhou, Dechang Li, Baohua Ji, Lei Jiang, Qunfeng Cheng
Portable and wearable electronics require much more flexible graphene-based electrode with high fatigue life, which could repeatedly bend, fold, or stretch without sacrificing its mechanical properties and electrical conductivity. Herein, a kind of ultrahigh fatigue resistant graphene-based nanocomposite via tungsten disulfide (WS2) nanosheets is synthesized by introducing a synergistic effect with covalently cross-linking inspired by the orderly layered structure and abundant interfacial interactions of nacre...
June 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28632157/development-of-a-novel-transparent-flexible-capacitive-micromachined-ultrasonic-transducer
#6
Da-Chen Pang, Cheng-Min Chang
This paper presents the world's first transparent flexible capacitive micromachined ultrasonic transducer (CMUT) that was fabricated through a roll-lamination technique. This polymer-based CMUT has advantages of transparency, flexibility, and non-contacting detection which provide unique functions in display panel applications. Comprising an indium tin oxide-polyethylene terephthalate (ITO-PET) substrate, SU-8 sidewall and vibrating membranes, and silver nanowire transparent electrode, the transducer has visible-light transmittance exceeding 80% and can operate on curved surfaces with a 40 mm radius of curvature...
June 20, 2017: Sensors
https://www.readbyqxmd.com/read/28632058/assessment-of-model-based-image-matching-for-future-reconstruction-of-unhelmeted-sport-head-impact-kinematics
#7
Gregory J Tierney, Hamed Joodaki, Tron Krosshaug, Jason L Forman, Jeff R Crandall, Ciaran K Simms
Player-to-player contact inherent in many unhelmeted sports means that head impacts are a frequent occurrence. Model-Based Image-Matching (MBIM) provides a technique for the assessment of three-dimensional linear and rotational motion patterns from multiple camera views of a head impact event, but the accuracy is unknown for this application. The goal of this study is to assess the accuracy of the MBIM method relative to reflective marker-based motion analysis data for estimating six degree of freedom head displacements and velocities in a staged pedestrian impact scenario at 40 km/h...
February 28, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28631474/a-flexible-dual-mode-tactile-sensor-derived-from-three-dimensional-porous-carbon-architecture
#8
Zifeng Wang, Ruijuan Jiang, Guangming Li, Yiyan Chen, Zijie Tang, Yukun Wang, Zhuoxin Liu, Hongbo Jiang, Chunyi Zhi
Detecting and monitoring varieties of human activities is one of the most essential functions and design purposes of different kinds of wearable sensors. Apart from excellent sensitivity and durability, limited by the materials, most of the sensors reported in the literatures are only capable of detecting signals based on sole mechanism. In this work, a dual-mode flexible sensor derived from high temperature pyrolysized 3D carbon sponge (C-Sponge) was proposed as peculiar sensor materials that are able to detect human activities based on fundamentally different mechanisms, either by triboelectric effect or by piezoresistive effect...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28631401/a-polyacrylamide-hydrogel-electrolyte-enabled-intrinsically-1000-stretchable-and-50-compressible-supercapacitor
#9
Yan Huang, Ming Zhong, Fukuan Shi, Xiaoying Liu, Zijie Tang, Yukun Wang, Yang Huang, Haoqing Hou, Xuming Xie, Chunyi Zhi
Stretchability and compressibility of supercapacitors constitute essential elements of modern electronics such as flexible and wearable devices. Widely-used polyvinyl alcohol-based electrolytes are neither very stretchable nor compressible, which fundamentally limit the realization of high stretchability and compressibility of supercapacitors. We present a new electrolyte that is intrinsically super-stretchable and compressible. Vinyl hybrid silica nanoparticle cross-linkers are introduced into polyacrylamide hydrogel backbones to promote dynamic crosslinking of the polymer networks...
June 19, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28631139/a-systematic-review-of-wearable-patient-monitoring-systems-current-challenges-and-opportunities-for-clinical-adoption
#10
Mirza Mansoor Baig, Hamid GholamHosseini, Aasia A Moqeem, Farhaan Mirza, Maria Lindén
The aim of this review is to investigate barriers and challenges of wearable patient monitoring (WPM) solutions adopted by clinicians in acute, as well as in community, care settings. Currently, healthcare providers are coping with ever-growing healthcare challenges including an ageing population, chronic diseases, the cost of hospitalization, and the risk of medical errors. WPM systems are a potential solution for addressing some of these challenges by enabling advanced sensors, wearable technology, and secure and effective communication platforms between the clinicians and patients...
July 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28630897/flexible-and-stretchable-power-sources-for-wearable-electronics
#11
Alla M Zamarayeva, Aminy E Ostfeld, Michael Wang, Jerica K Duey, Igal Deckman, Balthazar P Lechêne, Greg Davies, Daniel A Steingart, Ana Claudia Arias
Flexible and stretchable power sources represent a key technology for the realization of wearable electronics. Developing flexible and stretchable batteries with mechanical endurance that is on par with commercial standards and offer compliance while retaining safety remains a significant challenge. We present a unique approach that demonstrates mechanically robust, intrinsically safe silver-zinc batteries. This approach uses current collectors with enhanced mechanical design, such as helical springs and serpentines, as a structural support and backbone for all battery components...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28628594/telehealth-wearable-sensors-and-the-internet-will-they-improve-stroke-outcomes-through-increased-intensity-of-therapy-motivation-and-adherence-to-rehabilitation-programs
#12
Jane H Burridge, Alan Chong W Lee, Ruth Turk, Maria Stokes, Jill Whitall, Ravi Vaidyanathan, Phil Clatworthy, Ann-Marie Hughes, Claire Meagher, Enrico Franco, Lucy Yardley
BACKGROUND AND PURPOSE: Stroke, predominantly a condition of older age, is a major cause of acquired disability in the global population and puts an increasing burden on health care resources. Clear evidence for the importance of intensity of therapy in optimizing functional outcomes is found in animal models, supported by neuroimaging and behavioral research, and strengthened by recent meta-analyses from multiple clinical trials. However, providing intensive therapy using conventional treatment paradigms is expensive and sometimes not feasible because of social and environmental factors...
July 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28627862/feasibility-and-efficacy-of-wearable-devices-for-upper-limb-rehabilitation-in-patients-with-chronic-stroke-a-randomized-controlled-pilot-study
#13
Li-Fong Lin, Yi-Jia Lin, Zi-Hao Lin, Li-Yun Chuang, Wei-Chun Hsu, Yuan-Hsiang Lin
BACKGROUND: Wearable devices based on inertial measurement units through wireless sensor networks have many applications such as real-time motion monitoring and functional outcome assessment of stroke rehabilitation. However, additional investigations are warranted to validate their clinical value, particularly in detecting the synergy patterns of movements after stroke. AIM: To explore the feasibility and efficacy of wearable devices for upper limb rehabilitation in patients with chronic stroke and to compare the intervention effects (e...
June 19, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28627224/real-time-smart-textile-based-system-to-monitor-pressure-offloading-of-diabetic-foot-ulcers
#14
Andrea Raviglione, Roberto Reif, Maurizio Macagno, Davide Vigano, Justin Schram, David Armstrong
BACKGROUND: The lifetime risk of developing a diabetic foot ulcer (DFU) is at least 25%. A DFU carries a 50% risk for infection and at least 20% of those receive some form of amputation. The most significant parameter that prevents or delays ulcer healing is high plantar pressure. To improve the patient's healing process, the DFU's plantar pressure should remain cumulatively low. Therefore, a tool that continuously measures the DFU loading, and provides real-time feedback can improve the healing outcome...
February 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28627217/using-plantar-electrical-stimulation-to-improve-postural-balance-and-plantar-sensation-among-patients-with-diabetic-peripheral-neuropathy
#15
Bijan Najafi, Talal K Talal, Gurtej Singh Grewal, Robert Menzies, David G Armstrong, Lawrence A Lavery
OBJECTIVE: People with diabetic peripheral neuropathy (DPN) often exhibit deteriorations in motor-performance mainly due to lack of plantar-sensation. The study explored effectiveness of plantar electrical-stimulation therapy to enhance motor-performance among people with DPN. DESIGN AND METHODS: Using a double-blinded model, 28 volunteers with DPN (age: 57.8 ± 10.2 years) were recruited and randomized to either intervention (IG: n = 17) or control (CG: n = 11) group...
February 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28627178/turning-the-page-advancing-paper-based-microfluidics-for-broad-diagnostic-application
#16
Max M Gong, David Sinton
Infectious diseases are a major global health issue. Diagnosis is a critical first step in effectively managing their spread. Paper-based microfluidic diagnostics first emerged in 2007 as a low-cost alternative to conventional laboratory testing, with the goal of improving accessibility to medical diagnostics in developing countries. In this review, we examine the advances in paper-based microfluidic diagnostics for medical diagnosis in the context of global health from 2007 to 2016. The theory of fluid transport in paper is first presented...
June 19, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28622664/mechanical-imaging-of-soft-tissues-with-a-highly-compliant-tactile-sensing-array
#17
Bin Li, Ye Shi, Adam K Fontecchio, Yon Visell
The mechanical imaging of lumps in tissues via surface measurements can permit the noninvasive detection of disease-related differences in body tissues. In routine clinical palpation, physicians frequently make decisions based on mechanical properties that they infer from tactile information felt via touch, but these examinations currently yield little quantitative information. This has motivated the development of electronic methods for mechanical imaging. However, conventional tactile sensors are rigid, unable to conform to curved geometries, and are not adaptable to the shape of all body parts, limiting their applicability in biomedical sensing applications...
June 13, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28622499/the-measure-of-a-man
#18
Neil Savage
Moving beyond simple fitness tracking, wearable devices may soon offer opportunities for monitoring health and bring vast amounts of new data to the study of human diseases.
June 15, 2017: Cell
https://www.readbyqxmd.com/read/28621709/an-unobtrusive-fall-detection-and-alerting-system-based-on-kalman-filter-and-bayes-network-classifier
#19
Jian He, Shuang Bai, Xiaoyi Wang
Falls are one of the main health risks among the elderly. A fall detection system based on inertial sensors can automatically detect fall event and alert a caregiver for immediate assistance, so as to reduce injuries causing by falls. Nevertheless, most inertial sensor-based fall detection technologies have focused on the accuracy of detection while neglecting quantization noise caused by inertial sensor. In this paper, an activity model based on tri-axial acceleration and gyroscope is proposed, and the difference between activities of daily living (ADLs) and falls is analyzed...
June 16, 2017: Sensors
https://www.readbyqxmd.com/read/28621041/extraordinarily-stretchable-all-carbon-collaborative-nanoarchitectures-for-epidermal-sensors
#20
Yichen Cai, Jie Shen, Ziyang Dai, Xiaoxian Zang, Qiuchun Dong, Guofeng Guan, Lain-Jong Li, Wei Huang, Xiaochen Dong
Multifunctional microelectronic components featuring large stretchability, high sensitivity, high signal-to-noise ratio (SNR), and broad sensing range have attracted a huge surge of interest with the fast developing epidermal electronic systems. Here, the epidermal sensors based on all-carbon collaborative percolation network are demonstrated, which consist 3D graphene foam and carbon nanotubes (CNTs) obtained by two-step chemical vapor deposition processes. The nanoscaled CNT networks largely enhance the stretchability and SNR of the 3D microarchitectural graphene foams, endowing the strain sensor with a gauge factor as high as 35, a wide reliable sensing range up to 85%, and excellent cyclic stability (>5000 cycles)...
June 16, 2017: Advanced Materials
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