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Activity trackers

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https://www.readbyqxmd.com/read/28448949/utility-of-the-fitbit-flex-to-evaluate-sleep-in-major-depressive-disorder-a-comparison-against-polysomnography-and-wrist-worn-actigraphy
#1
Jesse D Cook, Michael L Prairie, David T Plante
BACKGROUND: Sleep disturbance is a common and important component of affective illness. Fitness activity trackers are emerging as alternative means to estimate sleep in psychiatric patients; however, their ability to quantify sleep in mood disorders has not been empirically evaluated. Thus, this study sought to evaluate the utility of the Fitbit Flex (FBF) to estimate sleep in patients with major depressive disorder (MDD) relative to gold standard polysomnography (PSG) and a widely-used actigraph (Actiwatch-2; AW-2)...
April 19, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28437597/weight-loss-in-weight-watchers-online-with-and-without-an-activity-tracking-device-compared-to-control-a-randomized-trial
#2
J Graham Thomas, Hollie A Raynor, Dale S Bond, Anna K Luke, Chelsi C Cardoso, Gary D Foster, Rena R Wing
OBJECTIVE: To evaluate a commercial online weight loss program and activity tracker, which are popular but have unknown efficacy. METHODS: Two hundred seventy-nine participants with BMI 27 to 40 kg/m(2) were randomized to 12 months of the Weight Watchers Online program alone (WWO) or with the ActiveLink(®) activity tracking device (WWO+AL) or an online newsletter (Control). RESULTS: Weight losses at 3 months were significantly greater in WWO (2...
April 24, 2017: Obesity
https://www.readbyqxmd.com/read/28420602/the-fitbit-one-physical-activity-tracker-in-men-with-prostate-cancer-validation-study
#3
Erin L Van Blarigan, Stacey A Kenfield, Lucy Tantum, Lisa A Cadmus-Bertram, Peter R Carroll, June M Chan
BACKGROUND: Physical activity after cancer diagnosis improves quality of life and may lengthen survival. However, objective data in cancer survivors are limited and no physical activity tracker has been validated for use in this population. OBJECTIVE: The aim of this study was to validate the Fitbit One's measures of physical activity over 7 days in free-living men with localized prostate cancer. METHODS: We validated the Fitbit One against the gold-standard ActiGraph GT3X+ accelerometer in 22 prostate cancer survivors under free-living conditions for 7 days...
April 18, 2017: JMIR Cancer
https://www.readbyqxmd.com/read/28420055/perceived-stress-and-reported-cognitive-symptoms-among-georgia-patients-with-systemic-lupus-erythematosus
#4
L Plantinga, S S Lim, C B Bowling, C Drenkard
Objective To examine associations of perceived stress with cognitive symptoms among adults with systemic lupus erythematosus (SLE). Methods Among 777 adult (≥18 years) SLE patients, the association of Perceived Stress Scale (PSS) scores with two self-reported cognitive symptoms was examined: forgetfulness (severe/moderate vs. mild/none; from the Systemic Lupus Activity Questionnaire) and difficulty concentrating (all/most vs. some/little/none of the time; from the Lupus Impact Tracker). The study used multivariable logistic regression to estimate the odds ratios (ORs) per minimal important difference (MID = 0...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28417456/interventions-to-improve-adherence-to-inhaled-steroids-for-asthma
#5
REVIEW
Rebecca Normansell, Kayleigh M Kew, Elizabeth Stovold
BACKGROUND: Despite its proven efficacy in improving symptoms and reducing exacerbations, many patients with asthma are not fully adherent to their steroid inhaler. Suboptimal adherence leads to poorer clinical outcomes and increased health service utilisation, and has been identified as a contributing factor to a third of asthma deaths in the UK. Reasons for non-adherence vary, and a variety of interventions have been proposed to help people improve treatment adherence. OBJECTIVES: To assess the efficacy and safety of interventions intended to improve adherence to inhaled corticosteroids among people with asthma...
April 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28395305/the-accuracy-of-heart-rate-monitoring-by-some-wrist-worn-activity-trackers
#6
Lisa Cadmus-Bertram, Ronald Gangnon, Emily J Wirkus, Keith M Thraen-Borowski, Jessica Gorzelitz-Liebhauser
No abstract text is available yet for this article.
April 18, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28382164/visualization-of-macrophage-recruitment-to-inflammation-lesions-using-highly-sensitive-and-stable-radionuclide-embedded-gold-nanoparticles-as-a-nuclear-bio-imaging-platform
#7
Sang Bong Lee, Ho Won Lee, Thoudam Debraj Singh, Yinghua Li, Sang Kyoon Kim, Sung Jin Cho, Sang-Woo Lee, Shin Young Jeong, Byeong-Cheol Ahn, Sangil Choi, In-Kyu Lee, Dong-Kwon Lim, Jaetae Lee, Yong Hyun Jeon
Reliable and sensitive imaging tools are required to track macrophage migration and provide a better understating of their biological roles in various diseases. Here, we demonstrate the possibility of radioactive iodide-embedded gold nanoparticles (RIe-AuNPs) as a cell tracker for nuclear medicine imaging. To demonstrate this utility, we monitored macrophage migration to carrageenan-induced sites of acute inflammation in living subjects and visualized the effects of anti-inflammatory agents on this process...
2017: Theranostics
https://www.readbyqxmd.com/read/28381393/who-is-still-playing-pok%C3%A3-mon-go-a-web-based-survey
#8
Peter Rasche, Anna Schlomann, Alexander Mertens
BACKGROUND: Poor physical activity is one of the major health care problems in Western civilizations. Various digital gadgets aiming to increase physical activity, such as activity trackers or fitness apps, have been introduced over recent years. The newest products are serious games that incorporate real-life physical activity into their game concept. Recent studies have shown that such games increase the physical activity of their users over the short term. OBJECTIVE: In this study, we investigated the motivational effects of the digital game "Pokémon Go" leading to continued use or abandonment of the game...
April 5, 2017: JMIR Serious Games
https://www.readbyqxmd.com/read/28373931/piloting-a-mobile-health-intervention-to-increase-physical-activity-for-adolescents-with-adhd
#9
Erin Schoenfelder, Megan Moreno, Molly Wilner, Kathryn B Whitlock, Jason A Mendoza
Physical activity (PA) reduces symptoms of Attention Deficit Hyperactivity Disorder (ADHD); interventions to increase PA may improve functioning and health for adolescents with ADHD. Mobile health (mHealth) technology and social media constitute promising interactive modalities for engaging adolescents-who are at highest risk for ADHD treatment drop-out-in interventions to increase PA. The current pilot study evaluated feasibility and acceptability of an innovative intervention incorporating an mHealth-linked wearable activity tracker (Fitbit Flex) and a Facebook group to increase PA among adolescents with ADHD...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28372109/influence-of-head-tracking-on-the-externalization-of-speech-stimuli-for-non-individualized-binaural-synthesis
#10
Etienne Hendrickx, Peter Stitt, Jean-Christophe Messonnier, Jean-Marc Lyzwa, Brian Fg Katz, Catherine de Boishéraud
Binaural reproduction aims at recreating a realistic audio scene at the ears of the listener using headphones. In the real acoustic world, sound sources tend to be externalized (that is, perceived to be emanating from a source out in the world) rather than internalized (that is, perceived to be emanating from inside the head). Unfortunately, several studies report a collapse of externalization, especially with frontal and rear virtual sources, when listening to binaural content using non-individualized Head-Related Transfer Functions (HRTFs)...
March 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28347581/validity-of-commercial-activity-trackers-in-children-with-congenital-heart-disease
#11
Christine Voss, Ross F Gardner, Paige H Dean, Kevin C Harris
BACKGROUND: Increasing physical activity levels is a high priority to optimize long-term health in children with congenital heart disease (CHD). Commercial activity trackers have been validated in adults and are increasingly used to measure and promote physical activity in pediatric populations, but they have not been validated in children. METHODS: In 30 children with CHD aged 10-18 years, we assessed the validity of physical activity form the wrist-based Fitbit Charge HR (Fitbit, San Francisco, CA) against hip-based ActiGraph (ActiGraph LLC, Pensacola, FL) accelerometers under free living conditions for 7 days...
December 18, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28326116/comparison-of-wearable-activity-tracker-with-actigraphy-for-sleep-evaluation-and-circadian-rest-activity-rhythm-measurement-in-healthy-young-adults
#12
Hyun-Ah Lee, Heon-Jeong Lee, Joung-Ho Moon, Taek Lee, Min-Gwan Kim, Hoh In, Chul-Hyun Cho, Leen Kim
OBJECTIVE: The purpose of this study was to evaluate the applicability of data obtained from a wearable activity tracker (Fitbit Charge HR) to medical research. This was performed by comparing the wearable activity tracker (Fitbit Charge HR) with actigraphy (Actiwatch 2) for sleep evaluation and circadian rest-activity rhythm measurement. METHODS: Sixteen healthy young adults (female participants, 62.5%; mean age, 22.8 years) wore the Fitbit Charge HR and the Actiwatch 2 on the same wrist; a sleep log was recorded over a 14-day period...
March 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28319983/reliability-and-validity-of-ten-consumer-activity-trackers-depend-on-walking-speed
#13
Tryntsje Fokkema, Thea J M Kooiman, Wim P Krijnen, Cees P VAN DER Schans, Martijn DE Groot
PURPOSE: To examine the test-retest reliability and validity of ten activity trackers for step counting at three different walking speeds. METHODS: Thirty-one healthy participants walked twice on a treadmill for 30 min while wearing 10 activity trackers (Polar Loop, Garmin Vivosmart, Fitbit Charge HR, Apple Watch Sport, Pebble Smartwatch, Samsung Gear S, Misfit Flash, Jawbone Up Move, Flyfit, and Moves). Participants walked three walking speeds for 10 min each; slow (3...
April 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28276176/user-profiles-of-an-electronic-mental-health-tool-for-ecological-momentary-assessment-memind
#14
María Luisa Barrigón, Sofian Berrouiguet, Juan José Carballo, Covadonga Bonal-Giménez, Pablo Fernández-Navarro, Bernadette Pfang, David Delgado-Gómez, Philippe Courtet, Fuensanta Aroca, Jorge Lopez-Castroman, Antonio Artés-Rodríguez, Enrique Baca-García
Ecological momentary assessment (EMA) is gaining importance in psychiatry. This article assesses the characteristics of patients who used a new electronic EMA tool: the MEmind Wellness Tracker. Over one year, 13811 adult outpatients in our Psychiatry Department were asked to use MEmind. We collected information about socio-demographic data, psychiatric diagnoses, illness severity, stressful life events and suicidal thoughts/behavior. We compared active users (N = 2838) and non-active users (N = 10,973) of MEmind and performed a Random Forest analysis to assess which variables could predict its use...
March 9, 2017: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/28273796/image-based-multi-target-tracking-through-multi-bernoulli-filtering-with-interactive-likelihoods
#15
Anthony Hoak, Henry Medeiros, Richard J Povinelli
We develop an interactive likelihood (ILH) for sequential Monte Carlo (SMC) methods for image-based multiple target tracking applications. The purpose of the ILH is to improve tracking accuracy by reducing the need for data association. In addition, we integrate a recently developed deep neural network for pedestrian detection along with the ILH with a multi-Bernoulli filter. We evaluate the performance of the multi-Bernoulli filter with the ILH and the pedestrian detector in a number of publicly available datasets (2003 PETS INMOVE, Australian Rules Football League (AFL) and TUD-Stadtmitte) using standard, well-known multi-target tracking metrics (optimal sub-pattern assignment (OSPA) and classification of events, activities and relationships for multi-object trackers (CLEAR MOT))...
March 3, 2017: Sensors
https://www.readbyqxmd.com/read/28269687/stayfit-a-wearable-application-for-gym-based-power-training
#16
Maram Maheedhar, Aman Gaurav, Vivek Jilla, Vijay N Tiwari, Rangavittal Narayanan
Comprehensive fitness training involves both cardiorespiratory and power components. Often power/muscle strength training is confused with cardiorespiratory endurance training. However, each of them target different physiological aspects of fitness. Although, wearable based fitness trackers designed towards cardiorespiratory endurance training are available in the market, a dedicated wearable based fitness application designed for power training/tracking is still not readily available to fitness enthusiasts...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28259040/relationship-between-ambulatory-physical-activity-assessed-by-activity-trackers-and-physical-frailty-among-nursing-home-residents
#17
F Buckinx, A Mouton, J Y Reginster, J L Croisier, N Dardenne, C Beaudart, J Nelis, E Lambert, G Appelboom, O Bruyère
BACKGROUNDS: The aim of this study was to assess the relationship between the level of ambulatory physical activity, measured by physical activity tracker, and the clinical components of physical frailty, among nursing home residents. METHODS: We proceeded in 3 steps: (1) Validation of the physical activity tracker (i.e. the Pebble): 24 volunteer adults walked on a treadmill. The number of steps recorded by the Pebble worn by the subjects was compared with the number of steps counted by the investigators, by means of the Intra-class correlation coefficients (ICC)...
February 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28252197/death-anxiety-and-visual-oculomotor-processing-of-arousing-stimuli-in-a-free-view-setting
#18
Linda Wendelberg, Frode Volden, Sule Yildirim-Yayilgan
The main goal of this study was to determine how death anxiety (DA) affects visual processing when confronted with arousing stimuli. A total of 26 males and females were primed with either DA or a neutral primer and were given a free view/free choice task where eye movement was measured using an eye tracker. The goal was to identify measurable/observable indicators of whether the subjects were under the influence of DA during the free view. We conducted an eye tracking study because this is an area where we believe it is possible to find observable indicators...
April 2017: Scandinavian Journal of Psychology
https://www.readbyqxmd.com/read/28249832/supporting-the-delivery-of-total-knee-replacements-care-for-both-patients-and-their-clinicians-with-a-mobile-app-and-web-based-tool-randomized-controlled-trial-protocol
#19
M Sazzad Hussain, Jane Li, Emily Brindal, Yasmin van Kasteren, Marlien Varnfield, Andrew Reeson, Shlomo Berkovsky, Jill Freyne
BACKGROUND: Total knee replacement (TKR) surgeries have increased in recent years. Exercise programs and other interventions following surgery can facilitate the recovery process. With limited clinician contact time, patients with TKR have a substantial burden of self-management and limited communication with their care team, thus often fail to implement an effective rehabilitation plan. OBJECTIVE: We have developed a digital orthopedic rehabilitation platform that comprises a mobile phone app, wearable activity tracker, and clinical Web portal in order to engage patients with self-management tasks for surgical preparation and recovery, thus addressing the challenges of adherence to and completion of TKR rehabilitation...
March 1, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28227948/stayfit-a-wearable-application-for-gym-based-power-training
#20
Maram Maheedhar, Aman Gaurav, Vivek Jilla, Vijay N Tiwari, Rangavittal Narayanan, Maram Maheedhar, Aman Gaurav, Vivek Jilla, Vijay N Tiwari, Rangavittal Narayanan, Rangavittal Narayanan, Vijay N Tiwari, Vivek Jilla, Aman Gaurav, Maram Maheedhar
Comprehensive fitness training involves both cardiorespiratory and power components. Often power/muscle strength training is confused with cardiorespiratory endurance training. However, each of them target different physiological aspects of fitness. Although, wearable based fitness trackers designed towards cardiorespiratory endurance training are available in the market, a dedicated wearable based fitness application designed for power training/tracking is still not readily available to fitness enthusiasts...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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