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https://www.readbyqxmd.com/read/29141607/users-experiences-of-wearable-activity-trackers-a-cross-sectional-study
#1
Carol Maher, Jillian Ryan, Christina Ambrosi, Sarah Edney
BACKGROUND: Wearable activity trackers offer considerable promise for helping users to adopt healthier lifestyles. This study aimed to explore users' experience of activity trackers, including usage patterns, sharing of data to social media, perceived behaviour change (physical activity, diet and sleep), and technical issues/barriers to use. METHODS: A cross-sectional online survey was developed and administered to Australian adults who were current or former activity tracker users...
November 15, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29101092/development-and-validation-of-a-taxonomy-for-characterizing-measurements-in-health-self-quantification
#2
Manal Almalki, Kathleen Gray, Fernando Martin-Sanchez
BACKGROUND: The use of wearable tools for health self-quantification (SQ) introduces new ways of thinking about one's body and about how to achieve desired health outcomes. Measurements from individuals, such as heart rate, respiratory volume, skin temperature, sleep, mood, blood pressure, food consumed, and quality of surrounding air can be acquired, quantified, and aggregated in a holistic way that has never been possible before. However, health SQ still lacks a formal common language or taxonomy for describing these kinds of measurements...
November 3, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28968241/pilot-validation-of-ambulatory-activity-monitors-for-sleep-measurement-in-huntington-s-disease-gene-carriers
#3
Svetlana Maskevich, Ria Jumabhoy, Pierre D M Dao, Julie C Stout, Sean P A Drummond
Sleep disturbance occurs early in Huntington's disease (HD). Consumer- and research-grade activity monitors may enable routine assessment of sleep disturbances in HD. We compared Actiwatch Spectrum Pro, Jawbone UP2 and Fitbit One to the gold standard, polysomnography, in four late presymptomatic and three early HD participants. Compared to polysomnography, all ambulatory monitors overestimated total sleep time by >60 minutes and sleep efficiency by ∼15%. Thus, for assessment of specific sleep parameters in HD, none of the activity monitors are sufficiently accurate to replace polysomnography, although they may be sufficient for estimating overall sleep-wake patterns...
2017: Journal of Huntington's Disease
https://www.readbyqxmd.com/read/28895585/habitual-sleep-duration-and-sleep-duration-variation-are-independently-associated-with-body-mass-index
#4
X Xu, M P Conomos, O Manor, J E Rohwer, A T Magis, J C Lovejoy
BACKGROUND: Sleep plays a vital role in maintaining homeostasis and promoting health. Previous studies show that shorter sleep duration is associated with elevated body mass index (BMI) and other cardiovascular risk factors. The goal of this study was to investigate the effects of habitual sleep duration and nightly sleep duration variation based on daily device-recorded data on BMI and obesity-related biomarkers. METHOD: 748 individuals (50.6% females, 85.4% European-Americans, average age: 49...
September 12, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28807889/activity-trackers-implement-different-behavior-change-techniques-for-activity-sleep-and-sedentary-behaviors
#5
Mitch Duncan, Beatrice Murawski, Camille E Short, Amanda L Rebar, Stephanie Schoeppe, Stephanie Alley, Corneel Vandelanotte, Morwenna Kirwan
BACKGROUND: Several studies have examined how the implementation of behavior change techniques (BCTs) varies between different activity trackers. However, activity trackers frequently allow tracking of activity, sleep, and sedentary behaviors; yet, it is unknown how the implementation of BCTs differs between these behaviors. OBJECTIVE: The aim of this study was to assess the number and type of BCTs that are implemented by wearable activity trackers (self-monitoring systems) in relation to activity, sleep, and sedentary behaviors and to determine whether the number and type of BCTs differ between behaviors...
August 14, 2017: Interactive Journal of Medical Research
https://www.readbyqxmd.com/read/28743679/exploring-the-association-between-self-reported-asthma-impact-and-fitbit-derived-sleep-quality-and-physical-activity-measures-in-adolescents
#6
Jiang Bian, Yi Guo, Mengjun Xie, Alice E Parish, Isaac Wardlaw, Rita Brown, François Modave, Dong Zheng, Tamara T Perry
BACKGROUND: Smart wearables such as the Fitbit wristband provide the opportunity to monitor patients more comprehensively, to track patients in a fashion that more closely follows the contours of their lives, and to derive a more complete dataset that enables precision medicine. However, the utility and efficacy of using wearable devices to monitor adolescent patients' asthma outcomes have not been established. OBJECTIVE: The objective of this study was to explore the association between self‑reported sleep data, Fitbit sleep and physical activity data, and pediatric asthma impact (PAI)...
July 25, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28716797/a-pragmatic-phase-iii-multisite-double-blind-placebo-controlled-parallel-arm-dose-increment-randomised-trial-of-regular-low-dose-extended-release-morphine-for-chronic-breathlessness-breathlessness-exertion-and-morphine-sulfate-beams-study-protocol
#7
David Currow, Gareth John Watts, Miriam Johnson, Christine F McDonald, John O Miners, Andrew A Somogyi, Linda Denehy, Nicola McCaffrey, Danny J Eckert, Philip McCloud, Sandra Louw, Lawrence Lam, Aine Greene, Belinda Fazekas, Katherine C Clark, Kwun Fong, Meera R Agar, Rohit Joshi, Sharon Kilbreath, Diana Ferreira, Magnus Ekström
INTRODUCTION: Chronic breathlessness is highly prevalent and distressing to patients and families. No medication is registered for its symptomatic reduction. The strongest evidence is for regular, low-dose, extended- release (ER) oral morphine. A recent large phase III study suggests the subgroup most likely to benefit have chronic obstructive pulmonary disease (COPD) and modified Medical Research Council breathlessness scores of 3 or 4. This protocol is for an adequately powered, parallel-arm, placebo-controlled, multisite, factorial, block-randomised study evaluating regular ER morphine for chronic breathlessness in people with COPD...
July 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28606497/validity-of-a-commercial-wearable-sleep-tracker-in-adult-insomnia-disorder-patients-and-good-sleepers
#8
Seung-Gul Kang, Jae Myeong Kang, Kwang-Pil Ko, Seon-Cheol Park, Sara Mariani, Jia Weng
OBJECTIVES: To compare the accuracy of the commercial Fitbit Flex device (FF) with polysomnography (PSG; the gold-standard method) in insomnia disorder patients and good sleepers. METHODS: Participants wore an FF and actigraph while undergoing overnight PSG. Primary outcomes were intraclass correlation coefficients (ICCs) of the total sleep time (TST) and sleep efficiency (SE), and the frequency of clinically acceptable agreement between the FF in normal mode (FFN) and PSG...
June 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28502597/determining-resident-sleep-during-and-after-call-with-commercial-sleep-monitoring-devices
#9
Duncan R Morhardt, Amy Luckenbaugh, Cathy Goldstein, Gary J Faerber
OBJECTIVE: To demonstrate that commercial activity monitoring devices (CAMDs) are practical for monitoring resident sleep while on call. Studies that have directly monitored resident sleep are limited, likely owing to both cost and difficulty in study interpretation. The advent of wearable CAMDs that estimate sleep presents the opportunity to more readily evaluate resident sleep in physically active settings and "home call," a coverage arrangement familiar to urology programs. METHODS: Twelve urology residents were outfitted with Fitbit Flex devices during "home call" for a total of 57 (out of 64, or 89%) call or post-call night pairs...
August 2017: Urology
https://www.readbyqxmd.com/read/28487671/improved-mental-acuity-forecasting-with-an-individualized-quantitative-sleep-model
#10
Brent D Winslow, Nam Nguyen, Kimberly E Venta
Sleep impairment significantly alters human brain structure and cognitive function, but available evidence suggests that adults in developed nations are sleeping less. A growing body of research has sought to use sleep to forecast cognitive performance by modeling the relationship between the two, but has generally focused on vigilance rather than other cognitive constructs affected by sleep, such as reaction time, executive function, and working memory. Previous modeling efforts have also utilized subjective, self-reported sleep durations and were restricted to laboratory environments...
2017: Frontiers in Neurology
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
#11
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)...
August 1, 2017: Journal of Affective Disorders
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/28154740/comparative-analysis-of-actigraphy-performance-in-healthy-young-subjects
#13
Giannina J Bellone, Santiago A Plano, Daniel P Cardinali, Daniel Pérez Chada, Daniel E Vigo, Diego A Golombek
Sleep-related health disorders are increasing worldwide; diagnosis and treatment of such sleep diseases are commonly invasive and sometimes unpractical or expensive. Actigraphy has been recently introduced as a tool for the study of sleep and circadian disorders; however, there are several devices that claim to be useful for research and have not been thoroughly tested. This comparative study provides activity, sleep and temperature information regarding several of the most commonly used actigraphers: Micro-Mini Motion Logger; Act Trust; Misfit Flash; Fitbit Flex & Thermochron...
October 2016: Sleep Science
https://www.readbyqxmd.com/read/28117736/evaluation-of-commercial-self-monitoring-devices-for-clinical-purposes-results-from-the-future-patient-trial-phase-i
#14
Soren Leth, John Hansen, Olav W Nielsen, Birthe Dinesen
Commercial self-monitoring devices are becoming increasingly popular, and over the last decade, the use of self-monitoring technology has spread widely in both consumer and medical markets. The purpose of this study was to evaluate five commercially available self-monitoring devices for further testing in clinical applications. Four activity trackers and one sleep tracker were evaluated based on step count validity and heart rate validity. METHODS: The study enrolled 22 healthy volunteers in a walking test...
January 22, 2017: Sensors
https://www.readbyqxmd.com/read/28052867/how-consumer-physical-activity-monitors-could-transform-human-physiology-research
#15
REVIEW
Stephen P Wright, Tyish S Hall Brown, Scott R Collier, Kathryn Sandberg
A sedentary lifestyle and lack of physical activity are well-established risk factors for chronic disease and adverse health outcomes. Thus, there is enormous interest in measuring physical activity in biomedical research. Many consumer physical activity monitors, including Basis Health Tracker, BodyMedia Fit, DirectLife, Fitbit Flex, Fitbit One, Fitbit Zip, Garmin Vivofit, Jawbone UP, MisFit Shine, Nike FuelBand, Polar Loop, Withings Pulse O2, and others have accuracies similar to that of research-grade physical activity monitors for measuring steps...
March 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27957621/efficacy-feasibility-and-acceptability-of-a-novel-technology-based-intervention-to-support-physical-activity-in-cancer-survivors
#16
Nancy M Gell, Kristin W Grover, Morgan Humble, Michelle Sexton, Kim Dittus
PURPOSE: Physical activity is known to minimize the long-term side effects of cancer treatment. Yet, rates of physical activity participation by cancer survivors are significantly lower compared to the general population. The purpose of this pilot study was to examine the efficacy, feasibility, and acceptability of a technology-based intervention to promote maintenance of physical activity after completing an exercise-based oncology rehabilitation program. METHODS: The pre-post 4-week intervention included support delivered through tailored text messages, Fitbit® self-monitoring, and brief health coaching sessions...
April 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/27898460/a-pilot-comparison-of-a-smartphone-app-with-or-without-2-way-messaging-among-chronic-pain-patients-who-benefits-from-a-pain-app
#17
Robert N Jamison, Dylan C Jurcik, Robert R Edwards, Chuan-Chin Huang, Edgar L Ross
OBJECTIVES: The overall aim of this study was to determine the effect of introducing a smartphone pain application (app), for both Android and iPhone devices that enables chronic pain patients to assess, monitor, and communicate their status to their providers. METHODS: This study recruited 105 chronic pain patients to use a smartphone pain app and half of the patients (N=52) had 2-way messaging available through the app. All patients completed baseline measures and were asked to record their progress every day for 3 months, with the opportunity to continue for 6 months...
August 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/27465631/concurrent-validity-of-wearable-activity-trackers-under-free-living-conditions
#18
Skyler M Brooke, Hyun-Sung An, Seoung-Ki Kang, John M Noble, Kris E Berg, Jung-Min Lee
Brooke, SM, An, H-S, Kang, S-K, Noble, JM, Berg, KE, and Lee, J-M. Concurrent validity of wearable activity trackers under free-living conditions. J Strength Cond Res 31(4): 1097-1106, 2017-The purpose of this study is to evaluate the concurrent validity of wearable activity trackers in energy expenditure (EE) and sleep period time (SPT) under free-living conditions. Ninety-five (28.5 ± 9.8 years) healthy men (n = 34) and women (n = 61) participated in this study. The total EE and SPT were measured using 8 monitors: Nike+ FuelBand SE (NFB), Garmin VivoFit (VF), Misfit Shine (MF), Fitbit Flex (FF), Jawbone UP (JU), Polar Loop (PL), Fitbit Charge HR (FC), and SenseWear Armband Mini (SWA) (criterion measures: SWA for EE and a sleep log for SPT)...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27184237/changes-in-taste-preference-and-steps-taken-after-sleep-curtailment
#19
Shannon L Smith, Mary-Jon Ludy, Robin M Tucker
A substantial proportion of the population does not achieve the recommended amount of sleep. Previous work demonstrates that sleep alterations perturb energy balance by disrupting appetite hormones, increasing energy intake, and decreasing physical activity. This study explored the influence of sleep duration on taste perception as well as effects on dietary intake and physical activity. Participants (n=24 habitual short sleepers and n=27 habitual long sleepers, 82.4% female, 88.2% white, 25.2±7.7years) completed two randomized taste visits; one following short sleep duration (≤7h) and one following long sleep duration (>7h)...
September 1, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27164110/reliability-of-sleep-measures-from-four-personal-health-monitoring-devices-compared-to-research-based-actigraphy-and-polysomnography
#20
Janna Mantua, Nickolas Gravel, Rebecca M C Spencer
Polysomnography (PSG) is the "gold standard" for monitoring sleep. Alternatives to PSG are of interest for clinical, research, and personal use. Wrist-worn actigraph devices have been utilized in research settings for measures of sleep for over two decades. Whether sleep measures from commercially available devices are similarly valid is unknown. We sought to determine the validity of five wearable devices: Basis Health Tracker, Misfit Shine, Fitbit Flex, Withings Pulse O2, and a research-based actigraph, Actiwatch Spectrum...
May 5, 2016: Sensors
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