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The sleep and activity database for the early years (SADEY) study: design and methods

  • Dylan P. Cliff*
  • , Devan Antczak
  • , Catherine E. Draper
  • , Timothy Olds
  • , Rute Santos
  • , Diego Augusto Santos Silva
  • , Mark S. Tremblay
  • , Esther M. F. van Sluijs
  • , Byron Kemp
  • , Eivind Aadland
  • , Katrine Aadland
  • , Thayna Alves Bezerra
  • , Jade Burley
  • , Valerie Carson
  • , Hayley E. Christian
  • , Marieke de Craemer
  • , Katherine Downing
  • , Kylie D. Hesketh
  • , Rachel A. Jones
  • , Nicholas Kuzik
  • Reetta Lehto, Clarice Martins, Jorge Mota, Andrea Nathan, Anthony D. Okely, Eva Roos, Eduarda Sousa-Sá, Susana Vale, Sandra Wiebe, Ian Janssen
*Corresponding author for this work
  • University of Wollongong
  • University of the Witwatersrand
  • University of South Australia
  • University of Minho
  • Universidade Federal de Santa Catarina
  • University of Ottawa
  • MRC Epidemiology Unit Insitute of Meatabolic Science University of Cambridge
  • Western Norway University of Applied Sciences
  • Universidade Regional do Cariri
  • University of Alberta
  • The Kids Research Institute Australia
  • Ghent University
  • Deakin University
  • Folkhalsan
  • University of Porto
  • Lusófona University
  • Polytechnic Institute of Porto
  • Queen's University Kingston

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Background: Canada, Australia, the World Health Organization and other countries have released 24-hour movement guidelines for the early years which integrate physical activity, sedentary behaviour, and sleep, focusing on supporting children to achieve a healthy 24-hour day. The guideline evidence synthesis, however, highlighted the dearth of high-quality evidence, particularly from large-scale studies. The Sleep and Activity Database for the Early Years (SADEY) project aims to assemble a large, pooled database of 24-hour movement behaviours and health indicators in young children (birth to 5.99 years), to advance knowledge in these areas. This paper describes the SADEY design and methods. Methods: Data sets were identified with > 100 children and device-measured (hip-worn ActiGraph accelerometers) physical activity and sedentary behaviour, parent-reported or device-measured sleep, and at least one health outcome: physical (BMI, waist circumference, blood pressure), social-emotional (Strength and Difficulties Questionnaire), cognitive (Early Years Toolbox), or motor development (Test of Gross Motor Development 2). Led by the University of Wollongong co-ordinating centre, the SADEY project collates the datasets to create a pooled database. Findings: To date, 13 studies from 7 countries have been included in the database. Ethics clearance and data sharing agreements have been secured for all studies and the SADEY 1.0 database is being assembled including ~ 8,000 participants. Discussion: SADEY will be used to address questions of global importance to public health policy and practice, for example – Is the mix of movement behaviours across the 24-hour day associated with healthy development?, What is the optimal mix of these behaviours?, and; What factors can be targeted to support young children in achieving the optimal mix of 24-hour movement behaviours? Additionally, SADEY seeks to develop and disseminate protocols, develop capacity on the device-based measurement of movement behaviours, and seeks partnerships with stakeholders that promote knowledge translation on movement behaviours to support healthy development among young children.
Original languageEnglish
Article number15
JournalJournal of Activity, Sedentary and Sleep Behaviors
Volume3
Issue number1
DOIs
Publication statusPublished - 1 Dec 2024

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