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https://www.readbyqxmd.com/read/28918547/adaptive-step-goals-and-rewards-a-longitudinal-growth-model-of-daily-steps-for-a-smartphone-based-walking-intervention
#1
Elizabeth V Korinek, Sayali S Phatak, Cesar A Martin, Mohammad T Freigoun, Daniel E Rivera, Marc A Adams, Pedja Klasnja, Matthew P Buman, Eric B Hekler
Adaptive interventions are an emerging class of behavioral interventions that allow for individualized tailoring of intervention components over time to a person's evolving needs. The purpose of this study was to evaluate an adaptive step goal + reward intervention, grounded in Social Cognitive Theory delivered via a smartphone application (Just Walk), using a mixed modeling approach. Participants (N = 20) were overweight (mean BMI = 33.8 ± 6.82 kg/m(2)), sedentary adults (90% female) interested in participating in a 14-week walking intervention...
September 16, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28895585/habitual-sleep-duration-and-sleep-duration-variation-are-independently-associated-with-body-mass-index
#2
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
#3
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/28801304/how-accurate-is-your-activity-tracker-a-comparative-study-of-step-counts-in-low-intensity-physical-activities
#4
Parastoo Alinia, Chris Cain, Ramin Fallahzadeh, Armin Shahrokni, Diane Cook, Hassan Ghasemzadeh
BACKGROUND: As commercially available activity trackers are being utilized in clinical trials, the research community remains uncertain about reliability of the trackers, particularly in studies that involve walking aids and low-intensity activities. While these trackers have been tested for reliability during walking and running activities, there has been limited research on validating them during low-intensity activities and walking with assistive tools. OBJECTIVE: The aim of this study was to (1) determine the accuracy of 3 Fitbit devices (ie, Zip, One, and Flex) at different wearing positions (ie, pants pocket, chest, and wrist) during walking at 3 different speeds, 2...
August 11, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28794802/healthy-lifestyle-intervention-for-adult-clinic-patients-with-type-2-diabetes-mellitus
#5
Steven S Coughlin, Christos Hatzigeorgiou, Judith Anglin, Ding Xie, Gina M Besenyi, Gianluca De Leo, Jessica Stewart, Thad Wilkins
BACKGROUND: Diet and exercise therapy have been reported to be effective in improving blood glucose control and are an important part of treatment of type 2 diabetes mellitus. OBJECTIVE: The goal of this study is to examine the efficacy of a healthy lifestyle intervention for adult clinic patients with type 2 diabetes mellitus, as measured by Hgb-A1c, cardiovascular indicators, physical activity, weight, and BMI. Also of interest are optimal strategies for subject recruitment, the number of intervention sessions attended, and participant use of the Fitbit watch to monitor their physical activity and track food and beverage consumption...
2017: Diabetes Management
https://www.readbyqxmd.com/read/28777710/step-count-accuracy-and-reliability-of-two-activity-tracking-devices-in-people-after-stroke
#6
Samuel D Schaffer, Simon D Holzapfel, George Fulk, Pamela Rogers Bosch
BACKGROUND/PURPOSE: The increasing popularity of activity tracking devices presents an opportunity to monitor physical activity in patients after stroke. We sought to determine the reliability and accuracy of the Garmin Vivofit and Fitbit Zip for adults after stroke. METHODS: Twenty-four participants with stroke-induced hemiparesis wore a Fitbit Zip on the nonparetic hip and Garmin Vivofits on both wrists during a 6-minute walk test to determine the accuracy of the devices against video-determined step counts...
August 4, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28768612/short-term-efficacy-of-an-innovative-mobile-phone-technology-based-intervention-for-weight-management-for-overweight-and-obese-adolescents-pilot-study
#7
Jyu-Lin Chen, Claudia M Guedes, Bruce A Cooper, Audrey E Lung
BACKGROUND: In the United States, approximately one-third of adolescents are now overweight or obese, and one in six is obese. This financial cost and the larger nonfinancial costs of obesity make obesity prevention and management for adolescents imperative for the health of the nation. However, primary care visits are typically brief, and primary care providers may lack adequate resources to help overweight or obese adolescents to manage weight issues. To augment the efficacy of primary care visits for adolescent weight management, mobile phone technology can be used as an adjunct treatment that provides additional opportunities for encouraging improvement in lifestyle, attainment, and maintenance of healthy weight...
August 2, 2017: Interactive Journal of Medical Research
https://www.readbyqxmd.com/read/28755981/assessing-validity-of-the-fitbit-indicators-for-u-s-public-health-surveillance
#8
Kelly R Evenson, Fang Wen, Robert D Furberg
No abstract text is available yet for this article.
July 26, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28755778/developing-a-fitbit-supported-lifestyle-physical-activity-intervention-for-depressed-alcohol-dependent-women
#9
Ana M Abrantes, Claire E Blevins, Cynthia L Battle, Jennifer P Read, Alan L Gordon, Michael D Stein
PURPOSE: Women in alcohol treatment are more likely to relapse when in unpleasant, negative emotional states. Given the demonstrated benefits of exercise for decreasing depression, negative affect, and urges to drink, helping women engage in a lifestyle physical activity (LPA) intervention in early recovery may provide them a tool they can utilize "in the moment" in order to cope with negative emotional states and alcohol craving when relapse risk is highest. New digital fitness technologies (e...
September 2017: Journal of Substance Abuse Treatment
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
#10
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/28743215/fitness-band-accuracy-in-older-community-dwelling-adults
#11
Elizabeth A Madigan
Fitness bands are widely available and assist with tracking the number of steps taken. However, for older people with slow gaits, shorter step widths and/or use of ambulatory devices, the accuracy of fitness bands for step counting has not been well studied. Using four commercially available fitness bands (Garmin Vivofit2™, Fitbit Flex™, Up3™ and Microsoft Band™), we studied 30 older people with varying ambulatory abilities. We videotaped participants walking and compared the videotaped step count with the fitness band counts...
July 1, 2017: Health Informatics Journal
https://www.readbyqxmd.com/read/28732147/financial-incentives-and-health-coaching-to-improve-physical-activity-following-total-knee-replacement-a-randomized-controlled-trial
#12
Elena Losina, Jamie E Collins, Bhushan R Deshpande, Savannah R Smith, Griffin L Michl, Ilana M Usiskin, Kristina M Klara, Amelia R Winter, Heidi Y Yang, Faith Selzer, Jeffrey N Katz
OBJECTIVE: Most persons who undergo total knee replacement (TKR) do not increase their physical activity following surgery. We assessed whether financial incentives and health coaching would improve physical activity in persons undergoing TKR. METHODS: We designed a factorial randomized controlled trial among persons undergoing TKR for osteoarthritis. Subjects underwent normal perioperative procedures, including post-operative physical therapy, and were assigned to one of four arms: attention control, telephonic health coaching (THC), financial incentives (FI), or THC+FI...
July 21, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28731864/minimal-detectable-change-thresholds-and-responsiveness-of-zephyr-bioharness-fitbit-charge-devices
#13
Goris Nazari, Joy C MacDermid
The aim of the current study was to define the MDC thresholds for Zephyr Bioharness (ZB) and Fitbit Charge (FC-HR) heart rate variables, and to establish the internal responsiveness of ZB and FC-HR devices in terms of their heart rate, respiratory rate variables and number of steps taken variables, in a healthy sample of males and females at resting, sub-maximal activity and throughout recovery phases. A total of sixty participants (30 females, 48 ± 15) and (30 males, 48 ± 15) were recruited using stratified convenience and snowball sampling approaches from our university student, staff and faculty population...
July 18, 2017: Journal of Strength and Conditioning Research
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
#14
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/28709155/variable-accuracy-of-wearable-heart-rate-monitors-during-aerobic-exercise
#15
Stephen Gillinov, Muhammad Etiwy, Robert Wang, Gordon Blackburn, Dermot Phelan, A Marc Gillinov, Penny Houghtaling, Hoda Javadikasgari, Milind Y Desai
PURPOSE: Athletes and members of the public increasingly rely on wearable HR monitors to guide physical activity and training. The accuracy of newer, optically based monitors is unconfirmed. We sought to assess the accuracy of five optically based HR monitors during various types of aerobic exercise. METHODS: Fifty healthy adult volunteers (mean ± SD age = 38 ± 12 yr, 54% female) completed exercise protocols on a treadmill, a stationary bicycle, and an elliptical trainer (±arm movement)...
August 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28706104/use-of-a-mobile-social-networking-intervention-for-weight-management-a-mixed-methods-study-protocol
#16
Liliana Laranjo, Annie Y S Lau, Paige Martin, Huong Ly Tong, Enrico Coiera
INTRODUCTION: Obesity and physical inactivity are major societal challenges and significant contributors to the global burden of disease and healthcare costs. Information and communication technologies are increasingly being used in interventions to promote behaviour change in diet and physical activity. In particular, social networking platforms seem promising for the delivery of weight control interventions.We intend to pilot test an intervention involving the use of a social networking mobile application and tracking devices (Fitbit Flex 2 and Fitbit Aria scale) to promote the social comparison of weight and physical activity, in order to evaluate whether mechanisms of social influence lead to changes in those outcomes over the course of the study...
July 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28685388/a-mobile-health-application-to-track-patients-after-gastrointestinal-surgery-results-from-a-pilot-study
#17
Matthew M Symer, Jonathan S Abelson, Jeffrey Milsom, Bridget McClure, Heather L Yeo
INTRODUCTION: Many surgical readmissions are preventable. Mobile health technology can identify nascent complications and potentially prevent readmission. METHODS: We performed a pilot study of a new mobile health application in adults undergoing major abdominal surgery. Patients reported their pain, answered surveys, photographed their wound, were reminded to stay hydrated, and used a Fitbit™ device. Abnormal responses triggered alerts for further evaluation...
July 6, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28684384/a-bit-of-fit-minimalist-intervention-in-adolescents-based-on-a-physical-activity-tracker
#18
Jeffrey Gaudet, François Gallant, Mathieu Bélanger
BACKGROUND: Only 5% of Canadian youth meet the recommended 60 minutes of moderate to vigorous physical activity (MVPA) per day, with leisure time being increasingly allocated to technology usage. Direct-to-consumer mHealth devices that promote physical activity, such as wrist-worn physical activity trackers, have features with potential appeal to youth. OBJECTIVE: The primary purpose of this study was to determine whether a minimalist physical activity tracker-based intervention would lead to an increase in physical activity in young adolescents...
July 6, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28666177/accuracy-of-step-count-measured-by-physical-activity-monitors-the-effect-of-gait-speed-and-anatomical-placement-site
#19
Jessica J Chow, Jeanette M Thom, Michael A Wewege, Rachel E Ward, Belinda J Parmenter
INTRODUCTION: Consumer-based physical activity monitors (PAMs) are becoming increasingly popular, with multiple global organisations recommending physical activity levels that equate to 10,000 steps per day for optimal health. We therefore aimed to compare the step count of five PAMs to a visual step count to identify the most accurate monitors at varying gait speeds, along with the optimal anatomical placement site. METHODS: Participants completed 3min on a treadmill for five speeds (5...
June 21, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28659258/acceptance-of-mobile-health-in-communities-underrepresented-in-biomedical-research-barriers-and-ethical-considerations-for-scientists
#20
Camille Nebeker, Kate Murray, Christina Holub, Jessica Haughton, Elva M Arredondo
BACKGROUND: The rapid expansion of direct-to-consumer wearable fitness products (eg, Flex 2, Fitbit) and research-grade sensors (eg, SenseCam, Microsoft Research; activPAL, PAL Technologies) coincides with new opportunities for biomedical and behavioral researchers. Underserved communities report among the highest rates of chronic disease and could benefit from mobile technologies designed to facilitate awareness of health behaviors. However, new and nuanced ethical issues are introduced with new technologies, which are challenging both institutional review boards (IRBs) and researchers alike...
June 28, 2017: JMIR MHealth and UHealth
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