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The Effectiveness of a Computer-Tailored Web-Based Physical Activity Intervention Using Fitbit Activity Trackers in Older Adults (Active for Life): Randomized Controlled Trial

The Effectiveness of a Computer-Tailored Web-Based Physical Activity Intervention Using Fitbit Activity Trackers in Older Adults (Active for Life): Randomized Controlled Trial

During the appointment, after randomization, intervention group participants were shown through the Active for Life intervention website and Fitbit participants were provided with a Fitbit activity tracker and shown how to sync it to the intervention website. After the 12-week intervention, participants attended another face-to-face follow-up appointment to return the week 12 accelerometer. Participants received up to 3 email reminders for each research survey.

Stephanie J Alley, Jannique van Uffelen, Stephanie Schoeppe, Lynne Parkinson, Susan Hunt, Deborah Power, Natasha Waterman, Courtney Waterman, Quyen G To, Mitch J Duncan, Anthony Schneiders, Corneel Vandelanotte

J Med Internet Res 2022;24(5):e31352

Feasibility, Usability, and Effectiveness of a Machine Learning–Based Physical Activity Chatbot: Quasi-Experimental Study

Feasibility, Usability, and Effectiveness of a Machine Learning–Based Physical Activity Chatbot: Quasi-Experimental Study

To be eligible, potential participants had to be inactive ( Owing to an unexpected Facebook policy change (we used the Messenger app to host the chatbot, which is owned by Facebook) that blocked the chatbot from sending out new messages to participants who did not respond to the previous message within 24 hours, we were forced to stop the study at that point. As the recruitment was rolling, 48 participants had already completed the study when the Facebook policy change was implemented.

Quyen G To, Chelsea Green, Corneel Vandelanotte

JMIR Mhealth Uhealth 2021;9(11):e28577

Impact of COVID-19 on Physical Activity Among 10,000 Steps Members and Engagement With the Program in Australia: Prospective Study

Impact of COVID-19 on Physical Activity Among 10,000 Steps Members and Engagement With the Program in Australia: Prospective Study

Compared to many other countries that have seen much larger decreases in physical activity [6], the effect during the lockdown was small for Australia. This could be attributed to the fact that Australians were still allowed to exercise outdoors during the pandemic, whereas people from many other countries were not.

Quyen G To, Mitch J Duncan, Anetta Van Itallie, Corneel Vandelanotte

J Med Internet Res 2021;23(1):e23946