Reliability and validity of ten consumer activity trackers

Background: Activity trackers can potentially stimulate users to increase their physical activity behavior. The aim of this study was to examine the reliability and validity of ten consumer activity trackers for measuring step count in both laboratory and free-living conditions. Method: Healthy adult volunteers (n = 33) walked twice on a treadmill (4.8 km/h) for 30 min while wearing ten different activity trackers (i.e. Lumoback, Fitbit Flex, Jawbone Up, Nike+ Fuelband SE, Misfit Shine, Withings Pulse, Fitbit Zip, Omron HJ-203, Yamax Digiwalker SW-200 and Moves mobile application). In free-living conditions, 56 volunteers wore the same activity trackers for one working day. Test-retest reliability was analyzed with the Intraclass Correlation Coefficient (ICC). Validity was evaluated by comparing each tracker with the gold standard (Optogait system for laboratory and ActivPAL for free-living conditions), using paired samples t-tests, mean absolute percentage errors, correlations and Bland-Altman plots. Results: Test-retest analysis revealed high reliability for most trackers except for the Omron (ICC .14), Moves app (ICC .37) and Nike+ Fuelband (ICC .53). The mean absolute percentage errors of the trackers in laboratory and free-living conditions respectively, were: Lumoback (−0.2, −0.4), Fibit Flex (−5.7, 3.7), Jawbone Up (−1.0, 1.4), Nike+ Fuelband (−18, −24), Misfit Shine (0.2, 1.1), Withings Pulse (−0.5, −7.9), Fitbit Zip (−0.3, 1.2), Omron (2.5, −0.4), Digiwalker (−1.2, −5.9), and Moves app (9.6, −37.6). Bland-Altman plots demonstrated that the limits of agreement varied from 46 steps (Fitbit Zip) to 2422 steps (Nike+ Fuelband) in the laboratory condition, and 866 steps (Fitbit Zip) to 5150 steps (Moves app) in the free-living condition. Conclusion: The reliability and validity of most trackers for measuring step count is good. The Fitbit Zip is the most valid whereas the reliability and validity of the Nike+ Fuelband is low

How can Activity Trackers be Useful?:A Scoping Literature Review

Aim: Wearables technology plays an important role in supporting patients in self-management. This study aims to identify the functions and purposes of activity trackers that contribute to and assist in addressing the nursing diagnosis of Sedentary Lifestyle in patients with heart failure. Design: A scoping review was conducted. Depending on the type of study, critical appraisal took place using PRISMA, CONSORT, STROBE, or SRQR. Methods: A systematic search was performed in CINAHL, MEDLINE/PubMed, and the Cochrane library. Publications from January 2010 through May 2019 were included. The main subjects of the review were the functions and purposes of activity trackers that are used to support heart failure patients who live a sedentary lifestyle. Results: Thirteen articles were used for the analysis. The main feature of an activity tracker is the registration of steps, active/sedentary time, and calories burnt during the day. The following functions were mentioned in the articles: data collection, monitoring/self-monitoring, feedback, goal setting, awareness of own behaviour, motivation, and providing social support through the sharing of data

How can Activity Trackers be Useful?: A Scoping Literature Review

Aim: Wearables technology plays an important role in supporting patients in self-management. This study aims to identify the functions and purposes of activity trackers that contribute to and assist in addressing the nursing diagnosis of Sedentary Lifestyle in patients with heart failure. Design: A scoping review was conducted. Depending on the type of study, critical appraisal took place using PRISMA, CONSORT, STROBE, or SRQR. Methods: A systematic search was performed in CINAHL, MEDLINE/PubMed, and the Cochrane library. Publications from January 2010 through May 2019 were included. The main subjects of the review were the functions and purposes of activity trackers that are used to support heart failure patients who live a sedentary lifestyle. Results: Thirteen articles were used for the analysis. The main feature of an activity tracker is the registration of steps, active/sedentary time, and calories burnt during the day. The following functions were mentioned in the articles: data collection, monitoring/self-monitoring, feedback, goal setting, awareness of own behaviour, motivation, and providing social support through the sharing of data

Reliability and validity of ten consumer activity trackers

Deze poster geeft een samenvatting van onze studie naar de betrouwbaarheid en validiteit van tien verschillende consumenten activity trackers