The aim of AS:Sk is to improve physical activity levels and health-related outcomes of children from the Skelmersdale area of West Lancashire through a school-based physical activity multi-component intervention.

The multi-component intervention is the third and final phase of the AS:Sk project. It will be implemented and evaluated in four of the seven participating schools. The remaining three schools will act as controls and will not implement any physical activity intervention during the period of the research project. Schools will be randomly assigned to either intervention or control conditions. The multi-component intervention will involve multiple areas of the schools' curricula, environments, or policies being targeted. Decisions regarding these intervention components will be influenced by what was deemed effective, and feasible within phase 2 of the project. Phase 2 included a four week trial of three different single component physical activity interventions across all participating schools. Phase 3 will be implemented for at least eight weeks and if successful, it would then be rolled out in the control schools at the end of the project. Participants from both intervention and control schools will take part in the measures for evaluation in this third and final phase of the project.

Inclusion Criteria:

• Year 5 pupil attending participating schools

Exclusion Criteria:

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