Effects of a School-Based Physical Activity Intervention on 24-Hour Movement Behaviours and Motor Development in Preschool Children - Study Protocol
Enrolling by invitation · Not applicable
Conditions studied: Physical Inactivity, Sedentariness, Sleep, Motor Skills, Executive Function, Emotional Regulation
In brief
This protocol describes a quasi-experimental controlled study evaluating the effects of the Super Quinas in Preschool programme on 24-hour movement behaviours and motor development in preschool children aged 3-6 years. The intervention consists of one additional structured 60-minute physical activity session per week for 12 weeks, delivered by a qualified exercise professional in a public preschool in Maia, Portugal. Four classes (\~80 children) are allocated at the class level: two to the intervention condition and two to the control condition (usual curricular Physical Education). Baseline data collection (T0) was conducted between 23 February and 16 March 2026; the intervention commenced on 25 March 2026. Subsequent assessments are planned for early May (T1, mid-intervention), end of June (T2, post-intervention), and mid-September 2026 (T3, follow-up). Primary outcomes are 24-hour movement behaviours (ActiGraph GT3X accelerometry) and motor competence and physical fitness (Motor Competence Assessment + PREFIT subtests). Secondary outcomes include executive function (HTKS; Day-Night Stroop) and socioemotional regulation (SDQ). Statistical analyses will use longitudinal linear mixed-effects models under an intention-to-treat framework.
Key facts
- Study ID
- NCT07553507
- Run by
- Lusofona University
- People needed
- 80
- Starts
- 2026-03-04
- Expected to finish
- 2027-11-01
- Last updated by the study team
- 2026-04-28
Who can join
Age: 3 and older, up to 6. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Enrolled in preschool classes at Gandra Basic School. Aged between 3 and 6 years. Written informed consent provided by a parent or legal guardian.
You may not qualify if…
- Diagnosed developmental disorder Diagnosed physical limitation
Where it is running
- Gandra Basic School (Escola Básica de Gandra) — Maia, Porto District, Portugal
Full record on ClinicalTrials.gov
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