Pirie, WendyDuncan, ScottGibbons, AndrewJones, RachelStewart, TomHarris, Nigel2025-11-182025-11-182025-11-14Australian and New Zealand Journal of Public Health, ISSN: 1326-0200 (Print); 1753-6405 (Online), Elsevier, 49(6), 100286-100286. doi: 10.1016/j.anzjph.2025.1002861326-02001753-6405http://hdl.handle.net/10292/20136Objective: To determine feasibility and potential efficacy of the M.A.P.P physical activity program in early childhood education (ECE) centres. Method: Four ECE centres were randomised to intervention (n=2) or control (n=2). Participants included 46 children (3.9 ± 0.5 years, M = 22, F = 24), 8 female leaders, and 20 female teachers. The 10-week online M.A.P.P. intervention aimed to improve physical activity (PA) levels and the quality of movement environments. Potential efficacy was assessed using accelerometry; feasibility was explored via observations and interviews. Results: Programme adherence was high (80%). Teachers, leaders and children reported M.A.P.P as enjoyable. No significant intervention effects were found for sedentary behaviour (β = 1.14, 95% confidence interval (CI): [-7.00, 9.27], p=0.244), light PA (β = 11.5, 95% CI: [-0.97, 23.9], p=0.367), moderate PA (β = -10.8, 95% CI: [-22.1, 0.49], p=0.685), vigorous PA (β = -1.98, 95% CI: [-6.48, 2.51], p=0.458), moderate-to-vigorous intensity PA (β = -13.5, 95% CI: [-27.1, 0.125], p=0.849). Conclusions: M.A.P.P. is feasible in ECE centres but its effects on PA require further investigation. Implications for public health: Supporting ECE teachers to promote PA may provide public health benefits in early childhood.© 2025 The Authors. Published by Elsevier B.V. on behalf of Public Health Association of Australia. This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed.1117 Public Health and Health Services1402 Applied Economics1605 Policy and AdministrationPublic Health4202 Epidemiology4203 Health services and systems4206 Public healthphysical activitychildrenearly childhood educationJournal ArticleOpenAccess10.1016/j.anzjph.2025.100286