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https://www.readbyqxmd.com/read/28102448/development-of-a-new-assessment-tool-for-cervical-myelopathy-using-hand-tracking-sensor-part-1-validity-and-reliability
#1
M Abdulhadi Alagha, Mahmoud A Alagha, Eleanor Dunstan, Olaf Sperwer, Kate A Timmins, Bronek M Boszczyk
PURPOSE: To assess the reliability and validity of a hand motion sensor, Leap Motion Controller (LMC), in the 15-s hand grip-and-release test, as compared against human inspection of an external digital camera recording. METHODS: Fifty healthy participants were asked to fully grip-and-release their dominant hand as rapidly as possible for two trials with a 10-min rest in-between, while wearing a non-metal wrist splint. Each test lasted for 15 s, and a digital camera was used to film the anterolateral side of the hand on the first test...
January 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28095832/cost-effectiveness-of-using-a-motion-sensor-biofeedback-treatment-approach-for-the-management-of-sub-acute-or-chronic-low-back-pain-economic-evaluation-alongside-a-randomised-trial
#2
Terry Haines, Kelly-Ann Bowles
BACKGROUND: Low back pain is a common and costly condition internationally. There is high need to identify effective and economically efficient means for managing this problem. This study aimed to explore the cost-effectiveness of a novel motion-sensor biofeedback treatment approach in addition to guidelines-based care compared to guidelines-based care alone, from a societal perspective over a 12 month time horizon. METHOD: This was an incremental cost-effectiveness analysis conducted concurrently with a pilot, cluster randomized controlled trial...
January 17, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28065962/compliance-of-surgical-hand-washing-before-surgery-role-of-remote-video-surveillance
#3
Ambreen Khan, Sidrah Nausheen
OBJECTIVE: To evaluate and increase the compliance of surgical hand scrubbing with periodic feedback. METHODS: This study was conducted at the Aga Khan Hospital for Women and Children, Karachi, Pakistan, from April to July 2014. A remote video auditing system consisting of human auditors was used for visualising surgical hand wash compliance of the surgical team. The equipment, which used motion sensor, was installed in the scrub area wall, visualising the scrub sink only...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28048831/su-g-jep4-01-an-assessment-of-a-microsoft-kinect-v2-sensor-for-voluntary-breath-hold-monitoring-in-radiotherapy
#4
D Edmunds, E Donovan
PURPOSE: To determine whether the Microsoft Kinect Version 2 (Kinect v2), a commercial off-the-shelf (COTS) depth sensors designed for entertainment purposes, were robust to the radiotherapy treatment environment and could be suitable for monitoring of voluntary breath-hold compliance. This could complement current visual monitoring techniques, and be useful for heart sparing left breast radiotherapy. METHODS: In-house software to control Kinect v2 sensors, and capture output information, was developed using the free Microsoft software development kit, and the Cinder creative coding C++ library...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27996218/association-of-early-physical-activity-time-with-pain-activities-of-daily-living-and-progression-of-vertebral-body-collapse-in-patients-with-vertebral-compression-fractures-an-observational-study-at-single-institution
#5
Hideki Kataoka, Tatsunori Ikemoto, Ayana Yoshimura, Mihoko Shibuya, Kyo Goto, Jyunichirou Yamashita, Kaoru Morita, Jyunya Sakamoto, Jiro Nakano, Minoru Okita
BACKGROUND: Physical activity can reduce pain and improve the ability to perform daily activities in patients with acute low back pain (LBP) due to various non-specific causes. The association between physical activity during the early phase of acute vertebral compression fractures (VCFs) and rehabilitation outcomes is unknown. AIM: To investigate the effects of early physical activity time (EPAT) on pain following acute VCFs, recovery of the ability to perform activities of daily living (ADLs), and progression of fractured vertebral body collapse...
December 19, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27976750/compass-continuous-open-mouse-phenotyping-of-activity-and-sleep-status
#6
Laurence A Brown, Sibah Hasan, Russell G Foster, Stuart N Peirson
Background  Disruption of rhythms in activity and rest occur in many diseases, and provide an important indicator of healthy physiology and behaviour. However, outside the field of sleep and circadian rhythm research, these rhythmic processes are rarely measured due to the requirement for specialised resources and expertise. Until recently, the primary approach to measuring activity in laboratory rodents has been based on voluntary running wheel activity. By contrast, measuring sleep requires the use of electroencephalography (EEG), which involves invasive surgical procedures and time-consuming data analysis...
2016: Wellcome Open Res
https://www.readbyqxmd.com/read/27936271/multiple-stage-ambiguity-in-motion-perception-reveals-global-computation-of-local-motion-directions
#7
Andrew T Rider, Shin'ya Nishida, Alan Johnston
The motion of a 1D image feature, such as a line, seen through a small aperture, or the small receptive field of a neural motion sensor, is underconstrained, and it is not possible to derive the true motion direction from a single local measurement. This is referred to as the aperture problem. How the visual system solves the aperture problem is a fundamental question in visual motion research. In the estimation of motion vectors through integration of ambiguous local motion measurements at different positions, conventional theories assume that the object motion is a rigid translation, with motion signals sharing a common motion vector within the spatial region over which the aperture problem is solved...
1, 2016: Journal of Vision
https://www.readbyqxmd.com/read/27932873/coherence-between-self-reported-and-objectively-measured-physical-activity-in-patients-with-chronic-obstructive-lung-disease-a-systematic-review
#8
REVIEW
Mimi Thyregod, Uffe Bodtger
The beneficial effects of physical activity (PA) in patients with COPD, as well as the methods of their assessment, are well known and described. As objective measures of PA, such as the use of motion sensors, video recordings, exercise capacity testing, and indirect calorimetry, are not easily obtained in the daily clinical life, the reliability of the more accessible self-reported measurements of PA is important. In this review, we systematically identified original studies involving COPD patients and at least one parameter of self-reported and objective exercise testing, and analyzed every article for coherence between the objectively and self-reported measured PA...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27918482/fuzzy-computing-model-of-activity-recognition-on-wsn-movement-data-for-ubiquitous-healthcare-measurement
#9
Shu-Yin Chiang, Yao-Chiang Kan, Yun-Shan Chen, Ying-Ching Tu, Hsueh-Chun Lin
Ubiquitous health care (UHC) is beneficial for patients to ensure they complete therapeutic exercises by self-management at home. We designed a fuzzy computing model that enables recognizing assigned movements in UHC with privacy. The movements are measured by the self-developed body motion sensor, which combines both accelerometer and gyroscope chips to make an inertial sensing node compliant with a wireless sensor network (WSN). The fuzzy logic process was studied to calculate the sensor signals that would entail necessary features of static postures and dynamic motions...
December 3, 2016: Sensors
https://www.readbyqxmd.com/read/27915367/the-virtual-reality-head-mounted-display-oculus-rift-induces-motion-sickness-and-is-sexist-in-its-effects
#10
Justin Munafo, Meg Diedrick, Thomas A Stoffregen
Anecdotal reports suggest that motion sickness may occur among users of contemporary, consumer-oriented head-mounted display systems and that women may be at greater risk. We evaluated the nauseogenic properties of one such system, the Oculus Rift. The head-mounted unit included motion sensors that were sensitive to users' head movements, such that head movements could be used as control inputs to the device. In two experiments, seated participants played one of two virtual reality games for up to 15 min. In Experiment 1, 22% of participants reported motion sickness, and the difference in incidence between men and women was not significant...
December 3, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27882777/real-time-visual-activity-feedback-for-physical-activity-improvement-in-breast-and-colon-cancer-patients
#11
Lars Gabrys, Stefan Sperzel, Marcus Bernhoerster, Winfried Banzer, Lutz Vogt
The study aims to evaluate the effects and feasibility of a biofeedback device for physical activity (PA) improvement in breast and colon cancer patients. Daily PA of 19 cancer patients was measured by accelerometry (ActiGraph, GT1 M). Additionally, patients wore a motion sensor with real-time visual activity feedback (ActiSmile). Counts per minutes (cpm) and moderate to vigorous physical activity (MVPA) were calculated and patients' activity data were compared to PA of 20 age-matched healthy controls. Baseline PA of patients was lower compared to controls...
January 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/27833057/25-years-of-lower-limb-joint-kinematics-by-using-inertial-and-magnetic-sensors-a-review-of-methodological-approaches
#12
REVIEW
Pietro Picerno
Joint kinematics is typically limited to the laboratory environment, and the restricted volume of capture may vitiate the execution of the motor tasks under analysis. Conversely, clinicians often require the analysis of motor acts in non-standard environments and for long periods of time, such as in ambulatory settings or during daily life activities. The miniaturisation of motion sensors and electronic components, generally associated with wireless communications technology, has opened up a new perspective: movement analysis can be carried out outside the laboratory and at a relatively lower cost...
January 2017: Gait & Posture
https://www.readbyqxmd.com/read/27775625/a-novel-model-based-driving-behavior-recognition-system-using-motion-sensors
#13
Minglin Wu, Sheng Zhang, Yuhan Dong
In this article, a novel driving behavior recognition system based on a specific physical model and motion sensory data is developed to promote traffic safety. Based on the theory of rigid body kinematics, we build a specific physical model to reveal the data change rule during the vehicle moving process. In this work, we adopt a nine-axis motion sensor including a three-axis accelerometer, a three-axis gyroscope and a three-axis magnetometer, and apply a Kalman filter for noise elimination and an adaptive time window for data extraction...
October 20, 2016: Sensors
https://www.readbyqxmd.com/read/27754458/hierarchical-activity-recognition-using-smart-watches-and-rgb-depth-cameras
#14
Zhen Li, Zhiqiang Wei, Lei Huang, Shugang Zhang, Jie Nie
Human activity recognition is important for healthcare and lifestyle evaluation. In this paper, a novel method for activity recognition by jointly considering motion sensor data recorded by wearable smart watches and image data captured by RGB-Depth (RGB-D) cameras is presented. A normalized cross correlation based mapping method is implemented to establish association between motion sensor data with corresponding image data from the same person in multi-person situations. Further, to improve the performance and accuracy of recognition, a hierarchical structure embedded with an automatic group selection method is proposed...
October 15, 2016: Sensors
https://www.readbyqxmd.com/read/27744087/individual-recognition-of-social-rank-and-social-memory-performance-depends-on-a-functional-circadian-system
#15
L Müller, D Weinert
In a natural environment, social abilities of an animal are important for its survival. Particularly, it must recognize its own social rank and the social rank of a conspecific and have a good social memory. While the role of the circadian system for object and spatial recognition and memory is well known, the impact of the social rank and circadian disruptions on social recognition and memory were not investigated so far. In the present study, individual recognition of social rank and social memory performance of Djungarian hamsters revealing different circadian phenotypes were investigated...
November 2016: Behavioural Processes
https://www.readbyqxmd.com/read/27714094/skin-inspired-fractal-strain-sensors-using-a-copper-nanowire-and-graphite-microflake-hybrid-conductive-network
#16
Naveen N Jason, Stephen J Wang, Sushrut Bhanushali, Wenlong Cheng
This work demonstrates a facile "paint-on" approach to fabricate highly stretchable and highly sensitive strain sensors by combining one-dimensional copper nanowire networks with two-dimensional graphite microflakes. This paint-on approach allows for the fabrication of electronic skin (e-skin) patches which can directly replicate with high fidelity the human skin surface they are on, regardless of the topological complexity. This leads to high accuracy for detecting biometric signals for applications in personalised wearable sensors...
September 22, 2016: Nanoscale
https://www.readbyqxmd.com/read/27714020/flow-less-and-shape-conformable-cnt-sheet-nanogenerator-for-self-powered-motion-sensor
#17
Hyelynn Song, Taewoo Kim, Hyeongwook Im, Raquel Ovalle-Robles, Tae June Kang, Yong Hyup Kim
A carbon nanotube (CNT) sheet nanogenerator that does not require any liquid or gas flow for power generation is developed on the basis of Coulombic interactions, making the device attractive as a building block for self-powered sensors. The working principle of the CNT nanogenerator is probed in terms of sweeping speed, distance between charged object and nanotube sheet, surface charge, and number of layers of nanotube sheet. The nature of the CNT sheet and its formation process is such that simply winding the CNT sheet stripe n times around a substrate leads to increasing the power n times...
September 22, 2016: Nanoscale
https://www.readbyqxmd.com/read/27686651/value-of-video-monitoring-for-nocturnal-seizure-detection-in-a-residential-setting
#18
Marije van der Lende, Fieke M E Cox, Gerhard H Visser, Josemir W Sander, Roland D Thijs
OBJECTIVE: Following a sudden death at a residential care unit, the Dutch Health and Care Inspectorate advised intensification of the use of video monitoring (VM) at the unit. We assessed whether VM resulted in increased identification of seizures that required clinical intervention. METHODS: The unit provides care for 340 individuals with refractory epilepsy and severe learning disabilities. Acoustic detection systems (ADSs) cover all individuals; 37 people also have a bed motion sensor (BMS) and 46 people with possible nocturnal seizures are now monitored by VM...
November 2016: Epilepsia
https://www.readbyqxmd.com/read/27666157/step-count-accuracy-of-3-motion-sensors-for-older-and-frail-medical-inpatients
#19
Ruth McCullagh, Christina Dillon, Ann Marie O'Connell, N Frances Horgan, Suzanne Timmons
OBJECTIVE: To measure the step-count accuracy of an ankle-worn accelerometer, a thigh-worn accelerometer, and a pedometer in older and frail inpatients. DESIGN: Cross-sectional design study. SETTING: Research room within a hospital. PARTICIPANTS: Convenience sample of inpatients (N=32; age, ≥65 years) who were able to walk 20m independently with or without a walking aid. INTERVENTIONS: Patients completed a 40-minute program of predetermined tasks while wearing the 3 motion sensors simultaneously...
September 22, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27659646/a-toothbrush-with-motion-sensor-technology
#20
(no author information available yet)
No abstract text is available yet for this article.
September 23, 2016: British Dental Journal
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