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The problem
Intervention: Increased moderate-to-vigorous physical activity
Who it was tested with: Swedish adolescents aged 13-14 years (585 participants, 45% boys and 55% girls from 34 schools around Stockholm).
The same group is measured before the intervention and again afterwards, with a baseline and an endline and sometimes a midline. Change is visible, but other causes cannot be ruled out.
"Physical activity and sedentary time were measured for seven consecutive days by accelerometry (Actigraph). The mental health outcomes, health-related quality of life (HRQoL) and psychosomatic health were measured with questionnaires (KIDSCREEN-10 and PSP). ANCOVA analyses were applied to estimate the associations between change in physical activity patterns and mental health outcomes." The study measured change in physical activity objectively and mental health outcomes at baseline and follow-up, then examined associations between these changes using statistical analysis.
No control group or comparison of different activity levels. Study design is observational and cannot establish causation, only association. Only two measurement points limit understanding of trajectory during pandemic. Results specific to Swedish context with relatively mild restrictions.
Across countries and designs
1 study · 1 country
