Abstract This study assessed the efficacy of a co-designed, school-based intervention meant to promote physical activity and fitness among Dutch prevocational secondary students. In a two-year clustered randomized controlled trial, students’ physical activity and fitness was measured by indirect and …

In their developmental model, Stodden et al. (2008) propose age- dependent relations between motor competence, physical activity, perceived motor competence, physical fitness, and weight status that can lead to a spiral of (dis)engagement. The goal of this study was to explore these relations in a large …

The goal of this cross-sectional study was to further explore the relationships between motor competence, physical activity, perceived motor competence, physical fitness and weight status in different age categories of Dutch primary school children. Participants were 2068 children aged 4 to 13 years …

Background The closing of schools and sports clubs during the COVID-19 lockdown raised questions about the possible impact on children’s motor skill development. Therefore, we compared motor skill development over a one-year period among four different cohorts of primary school children of which two …

BACKGROUND: Near-infrared spectroscopy (NIRS) measurements of oxygenation reflect O2 delivery and utilization in exercising muscle and may improve detection of a critical exercise threshold. PURPOSE: First, to detect an oxygenation breakpoint (Δ[O2HbMb-HHbMb]-BP) and compare this breakpoint to ventilatory …