What question did this study set out to answer?

This study aims to investigate the effects of reducing smartphone use and increasing physical activity on sleep quality and daytime fatigue among university students.

February 25, 2026Open Access

Digital Detox and Physical Activity: Enhancing Sleep Quality in University Student

Key Points

This study aims to investigate the effects of reducing smartphone use and increasing physical activity on sleep quality and daytime fatigue among university students.
Single-group pretest-posttest quasi-experimental design
Participants self-reported using personal information form and scales
Intervention reduced smartphone use by 30 minutes
Intervention increased physical activity by five minutes over one week
Multiple sleep quality scales were administered post-intervention
Improvements noted in all dimensions of sleep quality as measured by the Pittsburgh Sleep Quality Index
Reduced daytime fatigue levels documented after the intervention

Abstract

Excessive smartphone use among university students, driven by activities such as social media engagement and online content consumption, has raised concerns about its impact on sleep quality. This study examines how reducing smartphone use and increasing physical activity affect sleep quality and daytime fatigue in this population. A single-group pretest-posttest quasi-experimental approach was utilized, involving a convenience sample of university students (mean age: 19.83±1.39 years, BMI: 22.56±3.29). The data for this study were obtained through the administration of the Personal Information Form, the Smartphone Addiction Scale - Short Version (SAS-SV), the Pittsburgh Sleep Quality Index (PSQI), and the Epworth Sleepiness Scale (ESS). The intervention reduced daily smartphone use by 30 minutes and increased physical activity by five minutes over one week. Following the intervention, notable improvements were observed in all subdimensions of the PSQI (p

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