Active Learning Norwegian Preschool(er)s (ACTNOW) - Design of a Cluster Randomized Controlled Trial of Staff Professional Development to Promote Physical Activity, Motor Skills, and Cognition in Preschoolers.

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.

Effects of extra load position on energy expenditure in treadmill running.

The present study was designed to investigate how much running economy would be affected by changing the placement of extra load on running subjects. Twenty-four volunteer college students, 18 males and 6 females between 19 and 25 years ran on a treadmill at three different speeds (6, 8, and 10 km h(-1)). Energy expenditure was measured in O(2 )l min(-1).