ArticleFrontiers in public health2026
The relationship among college students' mobile phone addiction, bedtime procrastination, and physical activity: a cross-lagged study.
Article in Frontiers in public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Aim: In Chinese universities, mobile phone addiction (MPA) and bedtime procrastination (BP) are common and associated with adverse outcomes, whereas physical activity (PA) reliably benefits mental and physical health. Nevertheless, their longitudinal interplay remains underexplored. Accordingly, grounded in self-regulation theory, this longitudinal study examined the dynamic associations and potential causal pathways among MPA, BP, and PA in university students, in order to inform theory and guide future research. Methods: A total of 376 university students completed a valid questionnaire on problematic MPA, BP and PA at two points in time 3 months apart. A cross-lagged model was used to examine the longitudinal relationships between these factors. Results: Mobile phone addiction, BP, and PA exhibited complex temporal interrelations. Longitudinal path analyses indicated that: (1) mobile phone addiction (MPA), bedtime procrastination (BP) and physical activity (PA) all exhibited significant self-predictive effects between the two time points (MPA: Conclusion: The findings suggest MPA intensifies BP and reduces PA engagement, potentially creating a self-perpetuating cycle. Therefore, promoting PA may counter both MPA and BP, providing empirical support for targeted university interventions on students' phone use and sleep behaviors.
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