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Automatic Identification of Physical Activity Type and Duration by Wearable Activity Trackers: A Validation Study

Automatic Identification of Physical Activity Type and Duration by Wearable Activity Trackers: A Validation Study

Power analyses were not conducted because of a lack of previously published (or a priori) identified effect sizes. Participants self-selected which module or modules they wished to complete. Participants could complete more than 1 module if desired, but each module was scheduled on a different day to avoid excessively long activity participation in a single day by each participant. Participation in multiple modules was not expected to influence results.

Diana Dorn, Jessica Gorzelitz, Ronald Gangnon, David Bell, Kelli Koltyn, Lisa Cadmus-Bertram

JMIR Mhealth Uhealth 2019;7(5):e13547

The Fitbit One Physical Activity Tracker in Men With Prostate Cancer: Validation Study

The Fitbit One Physical Activity Tracker in Men With Prostate Cancer: Validation Study

We selected the Fitbit One for this study because it was one of the most advanced Fitbit models available in 2013; it remains a widely available and popular tracker in 2017. The Fitbit One is a 3-axis, accelerometer-based, physical activity tracker that measures steps, floors climbed, distance traveled, calories burned, physical activity, and sleep. The device is small (0.76”×0.38”×1.89”) and can be clipped to a belt, tight-fitting clothing, or a pocket.

Erin L Lynn Van Blarigan, Stacey A Kenfield, Lucy Tantum, Lisa A Cadmus-Bertram, Peter R Carroll, June M Chan

JMIR Cancer 2017;3(1):e5

Use of the Fitbit to Measure Adherence to a Physical Activity Intervention Among Overweight or Obese, Postmenopausal Women:  Self-Monitoring Trajectory During 16 Weeks

Use of the Fitbit to Measure Adherence to a Physical Activity Intervention Among Overweight or Obese, Postmenopausal Women: Self-Monitoring Trajectory During 16 Weeks

This study reports in detail the adherence of women assigned to use a clip-on Fitbit tracker as part of a low-touch physical activity intervention. Main study outcomes have been reported previously [15]. Participants were 25 postmenopausal, overweight or obese women assigned to a 16-week low-touch, Fitbit-based intervention as part of a randomized controlled trial.

Lisa Cadmus-Bertram, Bess H Marcus, Ruth E. Patterson, Barbara A. Parker, Brittany L Morey

JMIR Mhealth Uhealth 2015;3(4):e96