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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/28428158/mobile-application-to-promote-adherence-to-oral-chemotherapy-and-symptom-management-a-protocol-for-design-and-development
#2
Joel Nathan Fishbein, Lauren Ellen Nisotel, James John MacDonald, Nicole Amoyal Pensak, Jamie Michele Jacobs, Clare Flanagan, Kamal Jethwani, Joseph Andrew Greer
BACKGROUND: Oral chemotherapy is increasingly used in place of traditional intravenous chemotherapy to treat patients with cancer. While oral chemotherapy includes benefits such as ease of administration, convenience, and minimization of invasive infusions, patients receive less oversight, support, and symptom monitoring from clinicians. Additionally, adherence is a well-documented challenge for patients with cancer prescribed oral chemotherapy regimens. With the ever-growing presence of smartphones and potential for efficacious behavioral intervention technology, we created a mobile health intervention for medication and symptom management...
April 20, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28427441/physical-activity-among-children-objective-measurements-using-fitbit-one-%C3%A2-and-actigraph
#3
Lotta Hamari, Tiina Kullberg, Jukka Ruohonen, Olli J Heinonen, Natalia Díaz-Rodríguez, Johan Lilius, Anni Pakarinen, Annukka Myllymäki, Ville Leppänen, Sanna Salanterä
BACKGROUND: Self-quantification of health parameters is becoming more popular; thus, the validity of the devices requires assessments. The aim of this study was to evaluate the validity of Fitbit One step counts (Fitbit Inc., San Francisco, CA, USA) against Actigraph wActisleep-BT step counts (ActiGraph, LLC, Pensacola, FL, USA) for measuring habitual physical activity among children. DESIGN: The study was implemented as a cross-sectional experimental design in which participants carried two waist-worn activity monitors for five consecutive days...
April 20, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28426239/performance-of-an-artificial-pancreas-system-for-young-children-with-type-1-diabetes
#4
Mark D DeBoer, Marc D Breton, Christian Wakeman, Elaine M Schertz, Emma G Emory, Jessica L Robic, Laura L Kollar, Boris P Kovatchev, Daniel R Cherñavvsky
BACKGROUND: Young children 5-8 years old with type 1 diabetes (T1D) exhibit clear needs for improved glycemic control but may be limited in their ability to safely interact with an artificial pancreas system. Our goal was to evaluate the safety and performance of an artificial pancreas (AP) system among young children with T1D. RESEARCH DESIGN AND METHODS: In a randomized, crossover trial, children with T1D age 5-8 years were enrolled to receive on separate study periods (in random order) either the UVa AP using the DiAs Control Platform software with child-resistant lock-out screens (followed as an out-patient admission) or their usual insulin pump+continuous glucose monitor (CGM) care at home...
April 20, 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28420602/the-fitbit-one-physical-activity-tracker-in-men-with-prostate-cancer-validation-study
#5
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/28400221/validation-of-a-self-monitoring-tool-for-use-in-exercise-therapy
#6
Camilla S Powierza, Michael D Clark, Jaime M Hughes, Kevin A Carneiro, Jason P Mihalik
BACKGROUND: Aerobic exercise at a sub-symptom heart rate has been recommended as therapy for Post-Concussion Syndrome (PCS). Assessing adherence with an accurate heart rate monitoring instrument is difficult limiting the proliferation of large-scale randomized controlled trials. OBJECTIVE: To evaluate the validity of the Fitbit Charge HR against electrocardiogram (EKG) to monitor heart rate during a treadmill-based exercise protocol. DESIGN: A methods comparison study...
April 8, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28373931/piloting-a-mobile-health-intervention-to-increase-physical-activity-for-adolescents-with-adhd
#7
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/28363918/accuracy-of-a-step-counter-during-treadmill-and-daily-life-walking-by-healthy-adults-and-patients-with-cardiac-disease
#8
Charlotte Brun Thorup, Jan Jesper Andreasen, Erik Elgaard Sørensen, Mette Grønkjær, Birthe Irene Dinesen, John Hansen
BACKGROUND: Step counters have been used to observe activity and support physical activity, but there is limited evidence on their accuracy. OBJECTIVE: The purpose was to investigate the step accuracy of the Fitbit Zip (Zip) in healthy adults during treadmill walking and in patients with cardiac disease while hospitalised at home. METHODS: Twenty healthy adults aged 39±13.79 (mean ±SD) wore four Zips while walking on a treadmill at different speeds (1...
March 31, 2017: BMJ Open
https://www.readbyqxmd.com/read/28356097/adaptive-goal-setting-and-financial-incentives-a-2%C3%A2-%C3%A3-%C3%A2-2-factorial-randomized-controlled-trial-to-increase-adults-physical-activity
#9
Marc A Adams, Jane C Hurley, Michael Todd, Nishat Bhuiyan, Catherine L Jarrett, Wesley J Tucker, Kevin E Hollingshead, Siddhartha S Angadi
BACKGROUND: Emerging interventions that rely on and harness variability in behavior to adapt to individual performance over time may outperform interventions that prescribe static goals (e.g., 10,000 steps/day). The purpose of this factorial trial was to compare adaptive vs. static goal setting and immediate vs. delayed, non-contingent financial rewards for increasing free-living physical activity (PA). METHODS: A 4-month 2 × 2 factorial randomized controlled trial tested main effects for goal setting (adaptive vs...
March 29, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28347581/validity-of-commercial-activity-trackers-in-children-with-congenital-heart-disease
#10
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/28339904/validity-of-different-activity-monitors-to-count-steps-in-an-inpatient-rehabilitation-setting
#11
Daniel Treacy, Leanne Hassett, Karl Schurr, Sakina Chagpar, Serene S Paul, Catherine Sherrington
Background: Commonly used activity monitors have been shown to be accurate in counting steps in active people, however, further validation is needed in slower walking populations. Objectives: To determine the validity of activity monitors for measuring step counts in rehabilitation inpatients compared to visually-observed step counts. To explore the influence of gait parameters, activity monitor position and use of walkers on activity monitor accuracy. Methods: 166 inpatients admitted to a rehabilitation unit with an average walking speed of 0...
March 2, 2017: Physical Therapy
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/28323457/n-of-1-study-of-weight-loss-maintenance-assessing-predictors-of-physical-activity-adherence-to-weight-loss-plan-and-weight-change
#13
Dominika Kwasnicka, Stephan U Dombrowski, Martin White, Falko F Sniehotta
OBJECTIVE: Behaviour change interventions are effective in supporting individuals to achieve clinically significant weight loss, but weight loss maintenance (WLM) is less often attained. This study examined predictive variables associated with WLM. DESIGN: N-of-1 study with daily ecological momentary assessment combined with objective measurement of weight and physical activity, collected with wireless devices (Fitbit™) for six months. Eight previously obese adults who had lost over 5% of their body weight in the past year took part...
June 2017: Psychology & Health
https://www.readbyqxmd.com/read/28319983/reliability-and-validity-of-ten-consumer-activity-trackers-depend-on-walking-speed
#14
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/28302596/estimating-accuracy-at-exercise-intensities-a-comparative-study-of-self-monitoring-heart-rate-and-physical-activity-wearable-devices
#15
Erin E Dooley, Natalie M Golaszewski, John B Bartholomew
BACKGROUND: Physical activity tracking wearable devices have emerged as an increasingly popular method for consumers to assess their daily activity and calories expended. However, whether these wearable devices are valid at different levels of exercise intensity is unknown. OBJECTIVE: The objective of this study was to examine heart rate (HR) and energy expenditure (EE) validity of 3 popular wrist-worn activity monitors at different exercise intensities. METHODS: A total of 62 participants (females: 58%, 36/62; nonwhite: 47% [13/62 Hispanic, 8/62 Asian, 7/62 black/ African American, 1/62 other]) wore the Apple Watch, Fitbit Charge HR, and Garmin Forerunner 225...
March 16, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28293621/development-of-the-physical-activity-and-your-nutrition-for-cancer-pync-smartphone-app-for-preventing-breast-cancer-in-women
#16
Steven S Coughlin, Gina M Besenyi, Deborah Bowen, Gianluca De Leo
BACKGROUND: In the U.S., breast cancer accounts for more cancer deaths in women than any site other than lung cancer. Based upon attributable risks, about 30-35% of breast cancers could potentially be prevented by addressing obesity, physical inactivity, increased alcohol consumption, and carcinogenic exposures such as hormone replacement therapy (HRT). We need methods of reducing women's risks of this disease that are attractive and easy to use, widely accessible to diverse women, and able to be easily amended to account for new research...
2017: MHealth
https://www.readbyqxmd.com/read/28290065/does-stress-result-in-you-exercising-less-or-does-exercising-result-in-you-being-less-stressed-or-is-it-both-testing-the-bi-directional-stress-exercise-association-at-the-group-and-person-n-of-1-level
#17
Matthew M Burg, Joseph E Schwartz, Ian M Kronish, Keith M Diaz, Carmela Alcantara, Joan Duer-Hefele, Karina W Davidson
BACKGROUND: Psychosocial stress contributes to heart disease in part by adversely affecting maintenance of health behaviors, while exercise can reduce stress. Assessing the bi-directional relationship between stress and exercise has been limited by lack of real-time data and theoretical and statistical models. This lack may hinder efforts to promote exercise maintenance. PURPOSE: We test the bi-directional relationship between stress and exercise using real-time data for the average person and the variability-individual differences-in this relationship...
March 13, 2017: Annals of Behavioral Medicine: a Publication of the Society of Behavioral Medicine
https://www.readbyqxmd.com/read/28264796/feasibility-and-acceptability-of-a-wearable-technology-physical-activity-intervention-with-telephone-counseling-for-mid-aged-and-older-adults-a-randomized-controlled-pilot-trial
#18
Elizabeth J Lyons, Maria C Swartz, Zakkoyya H Lewis, Eloisa Martinez, Kristofer Jennings
BACKGROUND: As adults age, their physical activity decreases and sedentary behavior increases, leading to increased risk of negative health outcomes. Wearable electronic activity monitors have shown promise for delivering effective behavior change techniques. However, little is known about the feasibility and acceptability of non-Fitbit wearables (Fitbit, Inc, San Francisco, California) combined with telephone counseling among adults aged more than 55 years. OBJECTIVE: The purpose of our study was to determine the feasibility, acceptability, and effect on physical activity of an intervention combining a wearable physical activity monitor, tablet device, and telephone counseling among adults aged 55-79 years...
March 6, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28191545/the-future-of-mobile-health-applications-and-devices-in-cardiovascular-health
#19
Heval Mohamed Kelli, Bradley Witbrodt, Amit Shah
Mobile health (mHealth) is the utilisation of mobile technologies in healthcare and has particular relevance in improving lifestyle behaviours which may ultimately reduce cardiovascular disease risk. Various intervention studies for example integrate self-monitoring of diet and physical activity with text messaging systems to improve intermediate outcomes. Currently the future progress of mHealth technologies in formal diagnostic and therapeutic roles is pending and includes the need to validate and standardise accelerometer and heart rate data from various devices...
January 2017: Euro Med J Innov
https://www.readbyqxmd.com/read/28188585/assessing-the-effects-of-interpersonal-and-intrapersonal-behavior-change-strategies-on-physical-activity-in-older-adults-a-factorial-experiment
#20
Siobhan K McMahon, Beth Lewis, J Michael Oakes, Jean F Wyman, Weihua Guan, Alexander J Rothman
BACKGROUND: Little is known about which behavior change strategies motivate older adults to increase their physical activity. PURPOSE: The purpose of this study was to assess the relative effects of two sets of behavior change strategies to motivate increased physical activity among older adults: interpersonal and intrapersonal. METHODS: Community-dwelling older adults (N = 102, mean age = 79) were randomized in a 2 × 2 factorial experiment to receive interpersonal (e...
February 10, 2017: Annals of Behavioral Medicine: a Publication of the Society of Behavioral Medicine
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