Person-specific dose-finding for a digital messaging intervention to promote physical activity.

ABSTRACT:

Objective

Digital messaging is an established method for promoting physical activity. Systematic approaches for dose-finding have not been widely used in behavioral intervention development. We apply system identification tools from control systems engineering to estimate dynamical models and inform decision rules for digital messaging intervention to promote physical activity.

Method

Insufficiently active emerging and young adults (n = 45) wore an activity monitor that recorded minute-level step counts and heart rate and received 0-6 digital messages daily on their smartphone for 6 months. Messages were drawn from 3 content libraries (move more, sit less, inspirational quotes). Location recordings via location services in the user's smartphone were used to lookup weather in

SUBMITTER: Hojjatinia S 

PROVIDER: S-EPMC8514055 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature