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Mental Health in Young Adult University Students During COVID-19 Lockdown: Associations with Physical Activity, Sedentary Behaviors and Sleep Quality

Author

Listed:
  • Gustavo Silva

    (Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia (UMaia), 4475-690 Maia, Portugal)

  • Francisco Estima

    (Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia (UMaia), 4475-690 Maia, Portugal)

  • Ana Carvalhinho Silva

    (Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD), University of Maia (UMaia), 4475-690 Maia, Portugal)

  • Jorge Mota

    (Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto (FADE-UP), 4050-313 Porto, Portugal
    Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-091 Porto, Portugal)

  • Clarice Martins

    (Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto (FADE-UP), 4050-313 Porto, Portugal
    Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-091 Porto, Portugal)

  • Luísa Aires

    (Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto (FADE-UP), 4050-313 Porto, Portugal
    Laboratory for Integrative and Translational Research in Population Health (ITR), 4050-091 Porto, Portugal)

Abstract

This study analyzed associations between physical activity (PA), sedentary behaviors (SB), sleep, and mental health indicators in young adults during the COVID-19 lockdown (15 January–19 April 2021). The participants were 549 Portuguese university students (18–30 years, 57.7% male). Mental health was assessed using the DASS-21 for depression, anxiety, stress, and DASS-21 total score (DASSt). Physical activity (vigorous, moderate, walking) was measured with the IPAQ, while SB (e.g., sitting, screen time) and sleep were evaluated using self-reported measures and the Pittsburgh Sleep Quality Index (PSQI). Multiple linear regressions showed that sleep quality (β = 2.116), sitting time (ST; β = 0.451), vigorous PA (VPA; β = −0.005), and computer use for work/study (β = 0.444) were significantly associated with overall mental health, DASSt ( R 2 = 0.358). Sleep quality, sitting, and VPA were also linked to depression ( R 2 = 0.308), anxiety ( R 2 = 0.275), and stress ( R 2 = 0.338). Computer use for work/study was additionally associated with anxiety and stress. Overall, poor sleep quality, increased sitting, and computer use for work/study, alongside lower VPA, showed significant associations with poorer mental health outcomes. These findings highlight the importance of sleep, PA, and limiting sedentary behaviors, particularly during lockdowns, in mitigating mental health issues among Portuguese young adults.

Suggested Citation

  • Gustavo Silva & Francisco Estima & Ana Carvalhinho Silva & Jorge Mota & Clarice Martins & Luísa Aires, 2025. "Mental Health in Young Adult University Students During COVID-19 Lockdown: Associations with Physical Activity, Sedentary Behaviors and Sleep Quality," IJERPH, MDPI, vol. 22(2), pages 1-12, February.
    • Handle: RePEc:gam:jijerp:v:22:y:2025:i:2:p:241-:d:1586375
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    References listed on IDEAS

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