This study examined whether a personalized, WeChat-based behavioural intervention could help improve how university students allocate their time across daily movement behaviours, including physical activity, sedentary behaviour, and sleep. University students were randomly assigned to either an intervention group or a control group. Participants in the intervention group received individualized guidance, feedback, and behaviour-change support delivered through WeChat. The intervention was designed to help participants develop more balanced daily movement behaviour patterns within a 24-hour day. Participants in the control group continued their usual routines without receiving intervention materials. The primary outcome of the study was the time-use composition of 24-hour movement behaviours, reflecting how daily time was distributed across physical activity, sedentary behaviour, and sleep. Psychological factors related to behaviour regulation, such as motivation, planning, and habit, were also assessed. The results of this study aim to inform the development of theory-informed, personalized digital interventions that support healthier daily movement behaviour patterns among university students.
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Time allocation of 24-hour movement behaviour
Timeframe: Baseline, Week 8 (post-intervention), and Week 16 (follow-up)