Accelerometry for sleep assessment in children: Criterium validity of different algorithms in wrist- and ankle-worn devices.

Polysomnography, the gold-standard for measuring sleep, is costly, intrusive and usually limited to 1 night. Actigraphy offers a more affordable, less intrusive method over multiple nights. However, little research validates ActiGraph accelerometers against polysomnography, especially in children.

24-hour movement behaviours in the early years, potential behavioural determinants and prospective associations with growth, motor and social-emotional development: the My Little Moves study protocol.

Introduction: The early years are a critical period for establishing healthy 24-hour movement behaviours (physical activity, sedentary behaviour and sleep), yet studies examining prospective associations between all 24-hour movement behaviours and young children's growth and development are lacking. The My Little Moves study aims to (1) examine the prospective association between 24-hour movement behaviours of young children (ie, 0-4 years) and their growth, motor and social-emotional development; and (2) explore potential determinants of young children's 24-hour movement behaviours from an ecological perspective, to inform public health strategies aimed at promoting healthy behaviours and development.

Methods And Analysis: My Little Moves is a longitudinal observational cohort study, with data collection at baseline, and after 9 and 18 months follow-up.

Children's perspectives on health and wellbeing: A concept mapping study.

Purpose: Children's needs and perspectives regarding health and wellbeing are rarely considered in public health care services. To improve preventive youth health care, the aim of this study was to gain knowledge about children's perspectives on health and wellbeing.

Design And Methods: In a concept mapping study, Dutch children, 9-12 years old in primary schools (N = 82), generated ideas regarding health or wellbeing and sorted and rated these ideas on importance.

Challenges and Future Directions for Promoting Intersectional Quantitative Studies in Physical Activity Research.

Understanding health inequalities is essential for improving social justice. Intersectionality refers to a theoretical framework for studying the intersection of multiple social categorizations that create unique experiences and related social inequalities. Currently, the majority of the intersectional studies in the physical activity field have a qualitative design; thus, there is a need for quantitative intersectional studies.

Uncovering the key working mechanisms of a complex community-based obesity prevention programme in the Netherlands using ripple effects mapping.

Background: Much remains unknown about how complex community-based programmes can successfully achieve long-term impact. More insight is needed to understand the key mechanisms through which these programmes work. Therefore, we conducted an in-depth study in five communities that implemented the Healthy Youth, Healthy Future (JOGG) approach, a Dutch community-based obesity prevention programme.