Assessing the impact of message relevance and frequency on physical activity change: A secondary data analysis from the random AIM trial.

ABSTRACT: Text messages are widely used to deliver intervention content; however, sending more intensive messages may not always improve behavioral outcomes. This study investigated whether message frequency was associated with daily physical activity, either by itself or in interaction with message content relevance. Healthy but insufficiently active young adults (aged 18-29 years) wore Fitbit activity trackers and received text messages for 180 days. Message frequencies varied daily at random, and messages were sent from three content libraries (40% Move More, 40% Sit Less, 20% Inspirational Quotes). Contrary to expectations, the results revealed a null association between total daily text message frequency and physical activity, both for daily step counts and moderate-to-vigorous physical activit

SUBMITTER: Wu J 

PROVIDER: S-EPMC11113026 | biostudies-literature | 2024 Jan-Dec

REPOSITORIES: biostudies-literature