Tony OkelyJohn J. ReillyMark S. TremblayKatharina E. KariippanonCatherine E. DraperAsmaa El HamdouchiAlex A. FlorindoJanette P. GreenHongyan GuanPeter T. KatzmarzykHimangi LubreeBang Nguyen PhamThomas SuesseJuana WillumsenMohamed BasheerRebecca CalleiaKar Hau ChongPenny L. CrossMaria NacherLaura SmeetsEllie TaylorChalchisa AbdetaNicolas Aguilar-FariasAqsa BaigJambaldori BayasgalanCecilia H.S. ChanP. W.Prasad ChathuranganaMichael ChiaFazlollah GhofranipourAmy S. HaMohammad Sorowar HossainXanne JanssenAlejandra JáureguiPiyawat KatewongsaDong Hoon KimThanh Van KimDenise KohAnna KontsevayaGermana H. LeynaM. LöfNyaradzai MunambahTawonga Mwase-VumaJackline NusurupiaAoko OluwayomiBorja Del Pozo-CruzJesus Del Pozo-CruzEva RoosAsima ShiraziPragya SinghAmanda StaianoAdang SuhermanChiaki TanakaHong Kim TangWei Peng TeoMarites M. TiongcoDawn TladiAli TurabSanne L.C. VeldmanE. Kipling WebsterPujitha WickramasingheDyah Anantalia WidyastariKEM HospitalFiji National UniversityAugusta UniversityNational Medical Research Center for Therapy and Preventive MedicineUniversitas Pendidikan IndonesiaUniversity of MalawiPapua New Guinea Institute of Medical ResearchTanzania Food and Nutrition CentreDe La Salle UniversityUniversity of Colombo Faculty of MedicineUniversity of Wollongong in DubaiCapital Institute of PediatricsGodfrey Huggins School of MedicineUniversidad de SevillaTarbiat Modares UniversityOrganisation Mondiale de la SantéUniversity of StrathclydeJ. F. Oberlin UniversityInstituto Nacional de Salud Pública. MéxicoPennington Biomedical Research CenterUniversity of BotswanaSyddansk UniversitetChildren's Hospital of Eastern Ontario, OttawaUniversity of the Witwatersrand, JohannesburgMahidol UniversityKarolinska InstitutetUniversidad de la FronteraUniversity of WollongongUniversité Ibn TofailNational Institute of EducationLinköpings UniversitetUniversidade de São PauloUniversity of LagosHelsingin YliopistoChinese University of Hong KongAmsterdam UMC - Free University AmsterdamUniversiti Kebangsaan MalaysiaFolkhalsen Research CentreBiomedical Research FoundationPrecision Health Consultants (PHC Global)Ministry of Health of MongoliaHiwot Fana Specialized University HospitalPham Ngoc Thach University of MedicineKorea Institute of Child Care and Education2022-08-042022-08-042021-10-25BMJ Open. Vol.11, No.10 (2021)204460552-s2.0-85118425512https://repository.li.mahidol.ac.th/handle/123456789/77763Introduction 24-hour movement behaviours (physical activity, sedentary behaviour and sleep) during the early years are associated with health and developmental outcomes, prompting the WHO to develop Global guidelines for physical activity, sedentary behaviour and sleep for children under 5 years of age. Prevalence data on 24-hour movement behaviours is lacking, particularly in low-income and middle-income countries (LMICs). This paper describes the development of the SUNRISE International Study of Movement Behaviours in the Early Years protocol, designed to address this gap. Methods and analysis SUNRISE is the first international cross-sectional study that aims to determine the proportion of 3- and 4-year-old children who meet the WHO Global guidelines. The study will assess if proportions differ by gender, urban/rural location and/or socioeconomic status. Executive function, motor skills and adiposity will be assessed and potential correlates of 24-hour movement behaviours examined. Pilot research from 24 countries (14 LMICs) informed the study design and protocol. Data are collected locally by research staff from partnering institutions who are trained throughout the research process. Piloting of all measures to determine protocol acceptability and feasibility was interrupted by COVID-19 but is nearing completion. At the time of publication 41 countries are participating in the SUNRISE study. Ethics and dissemination The SUNRISE protocol has received ethics approved from the University of Wollongong, Australia, and in each country by the applicable ethics committees. Approval is also sought from any relevant government departments or organisations. The results will inform global efforts to prevent childhood obesity and ensure young children reach their health and developmental potential. Findings on the correlates of movement behaviours can guide future interventions to improve the movement behaviours in culturally specific ways. Study findings will be disseminated via publications, conference presentations and may contribute to the development of local guidelines and public health interventions.Mahidol UniversityMedicineArticleSCOPUS10.1136/bmjopen-2021-049267