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Wrist band

Alessandra Prioreschi, Thomas Nappey, Kate Westgate, Patrick Olivier, Soren Brage, Lisa Kim Micklesfield
Background: It is important to be able to reliably and feasibly measure infant and toddler physical activity in order to determine adherence to current physical activity guidelines and effects on early life development, growth and health. This study aimed to describe the development of an infant wearable wrist-worn band for the measurement of physical activity; to determine the feasibility of the device data for observational measurement of physical activity and to determine the caregiver reported acceptability of the infant wearable wrist band...
2018: Pilot and Feasibility Studies
Saeed Mehrang, Julia Pietilä, Ilkka Korhonen
Wrist-worn sensors have better compliance for activity monitoring compared to hip, waist, ankle or chest positions. However, wrist-worn activity monitoring is challenging due to the wide degree of freedom for the hand movements, as well as similarity of hand movements in different activities such as varying intensities of cycling. To strengthen the ability of wrist-worn sensors in detecting human activities more accurately, motion signals can be complemented by physiological signals such as optical heart rate (HR) based on photoplethysmography...
February 22, 2018: Sensors
Daniel W Geiger, Dennis L Eggett, Steven K Charles
BACKGROUND: Despite the pervasive and devastating effect of Essential Tremor (ET), the distribution of ET throughout the upper limb is unknown. We developed a method for characterizing the distribution of ET and performed a preliminary characterization in a small number of subjects with ET. METHODS: Using orientation sensors and inverse kinematics, we measured tremor in each of the seven major degrees of freedom (DOF) from the shoulder to the wrist while ten patients with mild ET assumed 16 different postures...
January 3, 2018: Clinical Biomechanics
Lewis B Holmes, Marie-Noel Westgate, Hanah Nasri, M Hassan Toufaily
BACKGROUND: Several malformations have been attributed to the process of vascular disruption. The central hypothesis for this etiology is that blood flow to a structure has been altered after that structure had formed normally. The decreased blood flow leads to hypoxia, endothelial cell damage, hemorrhage, tissue loss, and repair. After recovery, some structures are normal and others show either tissue loss or structural abnormalities, such as syndactyly and constriction rings. METHODS: The phenotypic features of the 7,020 infants with one or more malformations, who were born to women who had always planned to deliver at Brigham and Women's Hospital (BWH) between, 1972 and 2012, that is, maternal nontransfers, were reviewed...
January 2018: Birth defects research
Jennifer Berglund
Around 6 p.m. each evening, the streets of Boston's suburbs come alive with the physically fit and those aspiring to be. They are runners, bikers, walkers, and scooter riders of all different body shapes and ages who would seem to have little in common except one thing-an electronic band wrapped around their wrist. For many of these people, it's hard to imagine life without the daily nagging from a personal health device to meet their daily prescript of 10,000 steps.
January 2018: IEEE Pulse
Gemma Ann Joan Harrop, Jane Tighe, Alexander MacKenzie
A 68-year-old man presented with a 4-day history of worsening knee and arm pain. On examination, there was erythema and swelling of the left knee and both wrists. Joint aspiration grew Neisseria meningitidis Blood tests showed an unusually high total protein level (100 g/L) and an IgM kappa paraprotein band of 45 g/L on protein electrophoresis. CT showed widespread lymphadenopathy, hepatosplenomegaly and multilevel thoracic vertebral collapse. A bone marrow biopsy revealed a lymphoplasmacytic infiltrate and a lymph node biopsy showed features of nodal marginal zone lymphoma with plasmacytic differentiation...
January 23, 2018: BMJ Case Reports
Ka Man Tam, Siu Yin Cheung
INTRODUCTION: The purpose of this study was to assess the validity of the step count measurement of commercial electronic activity monitor devices. Two popular models, Fitbit Charge HR and Mi Band 2, were selected for treadmill walking in a single session. MATERIALS AND METHODS: Thirty healthy volunteers walked at five predetermined speeds (0.90, 1.12, 1.33, 1.54, and 1.78 m/s) on a treadmill with both Fitbit Charge HR and Mi Band 2 worn on their dominant hand's wrist...
January 24, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
Majid Masoumi, Mahsa Rezaei, A Ben Hamza
Quantitative shape comparison is a fundamental problem in computer vision, geometry processing and medical imaging. In this paper, we present a spectral graph wavelet approach for shape analysis of carpal bones of the human wrist. We employ spectral graph wavelets to represent the cortical surface of a carpal bone via the spectral geometric analysis of the Laplace-Beltrami operator in the discrete domain. We propose global spectral graph wavelet (GSGW) descriptor that is isometric invariant, efficient to compute, and combines the advantages of both low-pass and band-pass filters...
January 12, 2018: Physics in Medicine and Biology
Arturo Meissner, María Ignacia Vives, Javier Román, Arturo Meissner
INTRODUCTION: Lateral epicondylitis is a common cause of lateral elbow pain. There are many treatments able to improvement symptoms, including orthotic devices. The main available orthosis are wrist splint and forearm band. However, it is not clear which one constitutes the best alternative for symptomatic treatment. METHODS: To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others...
December 28, 2017: Medwave
S J Li, Z L Wang, W P Zhu, Y Xiang, J Lin, Y J Yu, P Li
Objective: To analyze the features of magnetic resonance imaging (MRI) of patients with high-voltage electrical burns in limbs at early stage. Methods: Thirty-eight patients with high-voltage electrical burns, conforming to the study criteria, were hospitalized in our unit from March 2013 to August 2016. T(1) weighted imaging (T(1)WI), T(2)WI, fat-suppression T(2)WI plain scan, and fat-suppression T(1)WI enhanced scan of MRI were performed in 78 limbs, including 56 upper limbs and 22 lower limbs at post injury hour 72...
December 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
Kazuyoshi Kobayashi, Kei Ando, Yuko Inagaki, Yusuke Suzuki, Yoshimasa Nagao, Naoki Ishiguro, Shiro Imagama
Fall in hospitalized patients can cause trauma and fractures, which can reduce ADL and QOL, whereas prevention of fall decreases medical expenses. The purpose of this study is to examine prevention of fall due to intervention from a fall working group established in our hospital. The working group focused on three main points. First, colored wrist bands for patients classified as grade 3 risk for fall are used to alert medical staff. Second, information on fall prevention was distributed to patients. Third, standardization of two bed fences and reduced use of slippers for inpatients have been introduced...
November 2017: Nagoya Journal of Medical Science
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
Arjun Puri, Ben Kim, Olivier Nguyen, Paul Stolee, James Tung, Joon Lee
BACKGROUND: Wearable activity trackers are newly emerging technologies with the anticipation for successfully supporting aging-in-place. Consumer-grade wearable activity trackers are increasingly ubiquitous in the market, but the attitudes toward, as well as acceptance and voluntary use of, these trackers in older population are poorly understood. OBJECTIVE: The aim of this study was to assess acceptance and usage of wearable activity trackers in Canadian community-dwelling older adults, using the potentially influential factors as identified in literature and technology acceptance model...
November 15, 2017: JMIR MHealth and UHealth
Changmok Choi, Byung-Hoon Ko, Jongwook Lee, Seung Keun Yoon, Uikun Kwon, Sang Joon Kim, Younho Kim
This paper describes photoplethysmography (PPG)-based pulse direction determination algorithm on a site of the radial artery using a wrist band. It has been well known that PPG is susceptible to noise and motion artifacts in the mobile environment and many research efforts have been made to focus on rejection of the noise and motion artifacts. However, no research has been performed to find PPG pulses when PPG is inverted by wrist movement. We present an algorithm, which accurately yields which direction PPG pulses face regardless of wrist movement...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Tanmoy Bhowmik, Jishnu Dey, Vijay Narayan Tiwari
Photoplethysmography(PPG) as a non-invasive tool for monitoring various cardiovascular parameters, has become popular due to the ease of wearable integration and pervasive nature. Due to unobtrusive nature of sensor placement at wrist, smartwatches and wrist based fitness bands have gained popularity. However, any movement of the wrist along with frequent loose contacts significantly corrupts the PPG signal. Reliable peak detection from the corrupted PPG signal is essential for any further processing, as many physiological quantities such as heart rate variability (HRV) depends on the peak-to-peak distances in the PPG signal, known as the RR Series...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Sheik Mohammad Mostakim Fattah, Nak-Myoung Sung, Il-Yeup Ahn, Minwoo Ryu, Jaeseok Yun
An aging population and human longevity is a global trend. Many developed countries are struggling with the yearly increasing healthcare cost that dominantly affects their economy. At the same time, people living with old adults suffering from a progressive brain disorder such as Alzheimer's disease are enduring even more stress and depression than those patients while caring for them. Accordingly, seniors' ability to live independently and comfortably in their current home for as long as possible has been crucial to reduce the societal cost for caregiving and thus give family members peace of mind, called 'aging in place' (AIP)...
October 11, 2017: Sensors
Billy Sperlich, Martin Becker, Andreas Hotho, Birgit Wallmann-Sperlich, Mahdi Sareban, Kay Winkert, Jürgen M Steinacker, Gunnar Treff
The aim of this pilot study was to analyze the off-training physical activity (PA) profile in national elite German U23 rowers during 31 days of their preparation period. The hours spent in each PA category (i.e., sedentary: <1.5 metabolic equivalents (MET); light physical activity: 1.5-3 MET; moderate physical activity: 3-6 MET and vigorous intense physical activity: >6 MET) were calculated for every valid day (i.e., >480 min of wear time). The off-training PA during 21 weekdays and 10 weekend days of the final 11-week preparation period was assessed by the wrist-worn multisensory device Microsoft Band II (MSBII)...
2017: Frontiers in Physiology
Rebecca T Gilbert, Nancy Farish, Eleanor Bergland, Mark Conaway, Jill Hance, Susan Ketcham, Lisa Letzkus, Marie Manz, Kathy Podgorski, Beth Quatrara, Ruth Ryman, Anika Spry
PURPOSE: Postoperative nausea and vomiting (PONV) is a common surgical complication that contributes to poor patient outcomes. The purpose of this study was to determine if acupressure to the P6 pressure point during the immediate postoperative period decreased PONV for the first 24 postoperative hours. DESIGN: This was a double-blind, randomized study. METHODS: Experimental group participants wore a wristband, which administered acupressure to the P6 pressure point of one wrist...
October 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
Camille Charissou, David Amarantini, Robin Baurès, Eric Berton, Laurent Vigouroux
PURPOSE: The mechanisms governing the control of musculoskeletal redundancy remain to be fully understood. The hand is highly redundant, and shows different functional role of extensors according to its configuration for a same functional task of finger flexion. Through intermuscular coherence analysis combined with hand musculoskeletal modelling during maximal isometric hand contractions, our aim was to better understand the neural mechanisms underlying the control of muscle force coordination and agonist-antagonist co-contraction...
November 2017: European Journal of Applied Physiology
Daizy Pahra, Nitasha Sharma, Sandhya Ghai, Abhishek Hajela, Shobhit Bhansali, Anil Bhansali
BACKGROUND: To evaluate the effectiveness of short-timed post-meal and one-time daily exercise on glycemic control in patients with T2DM. METHODS: Sixty-four T2DM patients were randomised into crossover design. Group A (n = 32) underwent post-meal exercise (moderate-intensity brisk walking covering 1500-1600 steps for 15 min, starting 15 min after each meal) from d1 to d60 followed by one-time daily exercise (45 min pre-breakfast brisk walking at stretch covering 4500-4800 steps) from d61 to d120, while it was vice versa for the group B (n = 32)...
2017: Diabetology & Metabolic Syndrome
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