keyword
MENU ▼
Read by QxMD icon Read
search

wearables

keyword
https://www.readbyqxmd.com/read/29166666/evaluating-the-efficacy-of-an-active-compression-brace-on-orthostatic-cardiovascular-responses
#1
Hadi Moein, Ramandeep Jhalli, Andrew P Blaber, Victoria E Claydon, Carlo Menon
Orthostatic intolerance, one of the principle causes of syncope, can occur secondary to concomitant venous pooling and enhanced capillary filtration. We aimed to evaluate a prototype portable calf active compression brace (ACB) designed to improve orthostatic haemodynamic control. Fourteen healthy volunteers participated in a randomized, placebo controlled, cross-over, double-blind study. Testing consisted of head-upright tilting and walking on a treadmill conducted on two consecutive days with a pair of ACBs wrapped around both calves...
2017: PloS One
https://www.readbyqxmd.com/read/29165932/carbon-necklace-incorporated-electroactive-reservoir-constructing-flexible-papers-for-advanced-lithium-ion-batteries
#2
Min Du, Kun Rui, Yuanqin Chang, Yu Zhang, Zhongyuan Ma, Wenping Sun, Qingyu Yan, Jixin Zhu, Wei Huang
Metal-organic frameworks (MOFs) and their derivatives with well-defined structures and compositions show great potential for wide applications such as sensors, catalysis, energy storage, and conversion, etc. However, poor electric conductivity and large volume expansion are main obstacles for their utilization in energy storage, e.g., lithium-ion batteries and supercapacitors. Herein, a facile strategy is proposed for embedding the MOFs, e.g., ZIF-67 and MIL-88 into polyacrylonitrile fibers, which is further used as a template to build a 3D interconnected conductive carbon necklace paper...
November 22, 2017: Small
https://www.readbyqxmd.com/read/29164773/recent-advances-in-flexible-stretchable-supercapacitors-for-wearable-electronics
#3
REVIEW
La Li, Zheng Lou, Di Chen, Kai Jiang, Wei Han, Guozhen Shen
The popularization of personalized wearable devices has accelerated the development of flexible/stretchable supercapacitors (SCs) that possess remarkable features of miniaturization, high security, and easy integration to build an all-in-one integrated system, and realize the functions of comfortable, noninvasive and continuous health monitoring, motion records, and information acquisition, etc. This Review presents a brief phylogeny of flexible/stretchable SCs, represented by planar micro-supercapacitors (MSCs) and 1D fibrous SCs...
November 22, 2017: Small
https://www.readbyqxmd.com/read/29164542/-vr-and-ar-applications-in-medical-practice-and-education
#4
Min-Chai Hsieh, Yu-Hsuan Lin
As technology advances, mobile devices have gradually turned into wearable devices. Furthermore, virtual reality (VR), augmented reality (AR), and mixed reality (MR) are being increasingly applied in medical fields such as medical education and training, surgical simulation, neurological rehabilitation, psychotherapy, and telemedicine. Research results demonstrate the ability of VR, AR, and MR to ameliorate the inconveniences that are often associated with traditional medical care, reduce incidents of medical malpractice caused by unskilled operations, and reduce the cost of medical education and training...
December 2017: Hu Li za Zhi the Journal of Nursing
https://www.readbyqxmd.com/read/29163210/a-wearable-test-for-maximum-aerobic-power-real-time-analysis-of-a-60-m-sprint-performance-and-heart-rate-off-kinetics
#5
Jorge L Storniolo, Gaspare Pavei, Alberto E Minetti
Maximum aerobic power ([Formula: see text]) as an indicator of body fitness is today a very well-known concept not just for athletes but also for the layman. Unfortunately, the accurate measurement of that variable has remained a complex and exhaustive laboratory procedure, which makes it inaccessible to many active people. In this paper we propose a quick estimate of it, mainly based on the heart rate off-kinetics immediately after an all-out 60-m sprint run. The design of this test took into account the recent availability of wrist wearable, heart band free, multi-sensor smart devices, which could also inertially detect the different phases of the sprint and check the distance run...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29163120/the-myosuit-bi-articular-anti-gravity-exosuit-that-reduces-hip-extensor-activity-in-sitting-transfers
#6
Kai Schmidt, Jaime E Duarte, Martin Grimmer, Alejandro Sancho-Puchades, Haiqi Wei, Chris S Easthope, Robert Riener
Muscle weakness-which can result from neurological injuries, genetic disorders, or typical aging-can affect a person's mobility and quality of life. For many people with muscle weakness, assistive devices provide the means to regain mobility and independence. These devices range from well-established technology, such as wheelchairs, to newer technologies, such as exoskeletons and exosuits. For assistive devices to be used in everyday life, they must provide assistance across activities of daily living (ADLs) in an unobtrusive manner...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/29161419/incidence-of-postoperative-atrial-fibrillation-recurrence-in-patients-discharged-in-sinus-rhythm-after-cardiac-surgery-a-systematic-review-and-meta-analysis
#7
Nicole Lowres, Georgina Mulcahy, Kai Jin, Robyn Gallagher, Lis Neubeck, Ben Freedman
Postoperative atrial fibrillation (POAF) is associated with increased stroke risk and mortality post-discharge. POAF is often considered transient; however, recurrence is likely under-recognized as symptoms are an unreliable guide. Surveillance post-discharge may identify asymptomatic POAF recurrences in patients discharged in sinus rhythm. Therefore, we performed a systematic review and meta-analysis of studies investigating POAF recurrence post-discharge, in patients with new-onset POAF following cardiac surgery who reverted to sinus rhythm prior to discharge...
November 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29160043/influence-of-probe-pressure-on-diffuse-reflectance-spectra-of-human-skin-measured-in-vivo
#8
Alexey P Popov, Alexander V Bykov, Igor V Meglinski
Mechanical pressure superficially applied on the human skin surface by a fiber-optic probe influences the spatial distribution of blood within the cutaneous tissues. Upon gradual load of weight on the probe, a stepwise increase in the skin reflectance spectra is observed. The decrease in the load follows the similar inverse staircase-like tendency. The observed stepwise reflectance spectra changes are due to, respectively, sequential extrusion of blood from the topical cutaneous vascular beds and their filling afterward...
November 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29159698/analysis-of-biosignals-during-immersion-in-computer-games
#9
Mina Yeo, Seokbeen Lim, Gilwon Yoon
The number of computer game users is increasing as computers and various IT devices in connection with the Internet are commonplace in all ages. In this research, in order to find the relevance of behavioral activity and its associated biosignal, biosignal changes before and after as well as during computer games were measured and analyzed for 31 subjects. For this purpose, a device to measure electrocardiogram, photoplethysmogram and skin temperature was developed such that the effect of motion artifacts could be minimized...
November 17, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/29159361/ultraflexible-and-tailorable-all-solid-state-supercapacitors-using-polyacrylamide-based-hydrogel-electrolyte-with-high-ionic-conductivity
#10
Huili Li, Tian Lv, Ning Li, Yao Yao, Kai Liu, Tao Chen
Hydrogels with high ionic conductivity consisting of a cross-linked polymer network swollen in water are very promising to be used as an electrolyte for all-solid-state supercapacitors. However, there are rather few flexible supercapacitors using ionic conducting hydrogel electrolytes reported to date. In this work, highly flexible and ionic conducting polyacrylamide hydrogels were synthesized through a simple approach. On using the ionic hydrogels as the electrolyte, the resulting supercapacitors not only exhibited a high specific capacitance but also showed a long self-discharge time (over 10 hours to the half of original open-circuit voltage) and a low leakage current...
November 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/29158616/validation-of-the-vert-wearable-jump-monitor-device-in-elite-youth-volleyball-players
#11
Thiago O Borges, Alexandre Moreira, Renato Bacchi, Ronaldo L Finotti, Mayara Ramos, Charles R Lopes, Marcelo S Aoki
This technical report aims to determine the validity and the accuracy of the VERT Wearable Jump Monitor. The participants of this study were all experienced volleyball players from the U18 category from the Brazilian National team. To assess jump performance, the VERT scores were compared to the VERTEC (jump and reach device). Each athlete performed 3 attack and 3 block jumps in a random, counterbalanced order, and the average score was registered. In the attack jumps, the VERTEC and VERT mean ± SD scores were 70...
September 2017: Biology of Sport
https://www.readbyqxmd.com/read/29157447/the-usefulness-and-actual-use-of-wearable-devices-among-the-elderly-population
#12
Shwetambara Kekade, Chung-Ho Hseieh, Md Mohaimenul Islam, Suleman Atique, Abdulwahed Mohammed Khalfan, Yu-Chuan Li, Shabbir Syed Abdul
BACKGROUND AND OBJECTIVE: Elderly populations are more prone to diseases and need continuous monitoring of parameters to ensure good health. Wearable devices (WDs) can be helpful in the early detection and management of medical conditions. However, less is known about the use of currently available WDs among elderly populations. The objectives of this study were to determine the usefulness and actual use of wearable devices among the elderly population. METHODS: Our methodology was based on a systematic review and a survey questionnaire...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29156582/in-memoriam-paolo-cappa
#13
EDITORIAL
Eduardo Palermo, Stefano Rossi, Fabrizio Patanè, Jeffrey Laut, Maurizio Porfiri
Prof. Paolo Cappa passed away on 26 August 2016, at the age of 59, after a long and courageous fight against cancer. Paolo Cappa was a Professor in Mechanical and Thermal Measurements and Experimental Biomechanics in the Department of Mechanical and Aerospace Engineering of Sapienza University of Rome, where he had also served as the Head of the Department, and a Research Professor in the Department of Mechanical and Aerospace Engineering of New York University Tandon School of Engineering. During his intense, yet short, career, he made several significant scientific contributions within the discipline of Mechanical and Thermal Measurements, pioneering fundamental applications to Biomechanics...
November 18, 2017: Sensors
https://www.readbyqxmd.com/read/29156237/skeleton-skin-structured-rgo-cnts-pani-composite-fiber-electrodes-with-excellent-mechanical-and-electrochemical-performance-for-all-solid-state-symmetric-supercapacitors
#14
Dong Liu, Pengcheng Du, Wenli Wei, Hongxing Wang, Qi Wang, Peng Liu
Polyaniline coated reduced graphene oxide/carbon nanotube composite fibers ((RGO/CNTs)@PANI, RCP) with skeleton/skin structure are designed as fiber-shaped electrodes for high performance all-solid-state symmetric supercapacitor. The one-dimensional reduced graphene oxide/carbon nanotube composite fibers (RGO/CNTs, RC) are prepared via a simple in-situ reduction of graphene oxide in presence of carbon nanotubes in quartz glass pipes, which exhibit excellent mechanical performance of >193.4 MPa of tensile strength...
November 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29155557/wearable-nanoplasmonic-patch-detecting-sun-uv-exposure
#15
Jessica G Barajas-Carmona, Leydi Francisco-Aldana, Eden Morales-Narváez
Sun exposure is known to yield beneficial health outcomes, including synthesis of adequate levels of vitamin D, beneficial modulation of blood pressure and is a valuable factor in mental health care. However, the increasing incidence of sun/UV exposure-related illness, such as skin cancer, is seriously concerning public health authorities as well as the scientific community. Consequently, moderate sun/UV exposure is strongly recommended. A wearable nanoplasmonic patch whose original color changes upon sun exposure due to its UV-responsive capabilities that are visually detectable has been engineered...
November 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29153771/outcome-of-patients-with-in-hospital-ventricular-tachycardia-and-ventricular-fibrillation-arrest-while-using-a-wearable-cardioverter-defibrillator
#16
Kenneth A Ellenbogen, Chingping Wan, David M Shavelle
In-hospital sudden cardiac arrests occurring during nighttime and weekend hours or within unmonitored hospital areas have been reported to have a poorer outcomes than monitored cardiac arrest. This study sought to assess the outcome of in-hospital ventricular tachycardia (VT) and ventricular fibrillation (VF) arrest by time of day, day of week, and within-hospital location when using a wearable cardioverter defibrillator (WCD). We retrospectively identified and reviewed consecutive in-hospital VT/VF arrests from January 2011 to May 2015 experienced by patients wearing a WCD using the manufacturer's postmarket registry...
November 16, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29152973/epidermal-microfluidic-electrochemical-detection-system-enhanced-sweat-sampling-and-metabolite-detection
#17
Aida Martin, Jayoung Kim, Jonas F Kurniawan, Juliane R Sempionatto, Jose R Moreto, Guangda Tang, Alan C Campbell, Andrew Shin, Min Yul Lee, Xiaofeng Liu, Joseph Wang
Despite tremendous recent efforts, non-invasive sweat monitoring is still far from delivering its early analytical promise. Here, we describe a flexible epidermal microfluidic detection platform fabricated through hybridization of lithographic and screen-printed technologies for efficient sweat sampling and continuous real-time electrochemical monitoring of sweat glucose and lactate levels. This soft, skin-mounted device judiciously merges lab-on-a-chip and electrochemical detection technologies, integrated with a miniaturized flexible electronic board for real-time wireless data transmission to a smart device...
November 20, 2017: ACS Sensors
https://www.readbyqxmd.com/read/29149035/wearete-a-scalable-wearable-e-textile-triboelectric-energy-harvesting-system-for-human-motion-scavenging
#18
Xian Li, Ye Sun
In this paper, we report the design, experimental validation and application of a scalable, wearable e-textile triboelectric energy harvesting (WearETE) system for scavenging energy from activities of daily living. The WearETE system features ultra-low-cost material and manufacturing methods, high accessibility, and high feasibility for powering wearable sensors and electronics. The foam and e-textile are used as the two active tribomaterials for energy harvester design with the consideration of flexibility and wearability...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29148212/flexible-stretchable-and-transparent-planar-microsupercapacitors-based-on-3d-porous-laser-induced-graphene
#19
Weixing Song, Jianxiong Zhu, Baoheng Gan, Shuyu Zhao, Hui Wang, Congju Li, Jie Wang
The graphene with 3D porous network structure is directly laser-induced on polyimide sheets at room temperature in ambient environment by an inexpensive and one-step method, then transferred to silicon rubber substrate to obtain highly stretchable, transparent, and flexible electrode of the all-solid-state planar microsupercapacitors. The electrochemical capacitance properties of the graphene electrodes are further enhanced by nitrogen doping and with conductive poly(3,4-ethylenedioxythiophene) coating. With excellent flexibility, stretchability, and capacitance properties, the planar microsupercapacitors present a great potential in fashionable and comfortable designs for wearable electronics...
November 17, 2017: Small
https://www.readbyqxmd.com/read/29148138/artificial-walking-technologies-to-improve-gait-in-cerebral-palsy-multichannel-neuromuscular-stimulation
#20
Jessica Rose, Katelyn Cahill-Rowley, Erin E Butler
Cerebral palsy (CP) is the most common childhood motor disability and often results in debilitating walking abnormalities, such as flexed-knee and stiff-knee gait. Current medical and surgical treatments are only partially effective in improving gait abnormalities and may cause significant muscle weakness. However, emerging artificial walking technologies, such as step-initiated, multichannel neuromuscular electrical stimulation (NMES), can substantially improve gait patterns and promote muscle strength in children with spastic CP...
November 2017: Artificial Organs
keyword
keyword
33429
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"