Sammendrag
Introduction: There is a dearth of high-quality evidence on effective, sustainable, and
scalable interventions to increase physical activity (PA) and concomitant outcomes in
preschoolers. Specifically, there is a need to better understand how the preschool
context can be used to increase various types of physically active play to promote
holistic child development. The implementation of such interventions requires highly
competent preschool staffs, however, the competence in promoting PA is often low.
The main aim of the ACTNOW study is therefore to investigate the effects of professional
development for preschool staffs on child PA and developmental outcomes.
Methods: The study will be conducted in Norway 2019–2022 and is designed
as a two-arm (intervention, control) cluster randomized controlled trial (RCT) with
7- and 18-months follow-ups. We aim to recruit 60 preschools and 1,200 3- to
5-years-old children to provide sufficient power to detect effect sizes (ESs) between
0.20 and 0.30. The intervention is nested within two levels: the preschool and the
child. Central to the ACTNOW intervention are opportunities for children to engage
in a variety of “enriched,” meaningful, and enjoyable physically active play that supports the development of the whole child. To this end, the main intervention is
a 7-month professional development/education module for preschool staff, aimed to
provide them with the necessary capacity to deliver four core PA components to the
children (moderate-to-vigorous PA, motor-challenging PA, cognitively engaging play, and
physically active learning). We will include a range of child-level outcomes, including PA,
physical fitness, adiposity, motor skills, socioemotional health, self-regulation, executive
function, and learning. At the preschool level, we will describe implementation and
adaptation processes using quantitative and qualitative data.
Discussion: Professional development of staff and a whole-child approach that integrates PA with cognitively engaging play and learning activities in the preschool
setting may provide a feasible vehicle to enhance both physical and cognitive
development in young children. ACTNOW is designed to test this hypothesis to provide
a sustainable way to build human capital and provide an early solution to lifelong public
health and developmental challenges.
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