# Study design and protocol for a mixed methods evaluation of an intervention to reduce and break up sitting time in primary school classrooms in the UK: The CLASS PAL (Physically Active Learning) Programme

> Research article (BMJ Open, 2017) · cited 23× · AI/ML

**Wikidata**: [openalex:W2767628297](https://www.wikidata.org/wiki/openalex:W2767628297)  
**Source**: https://4ort.xyz/entity/study-design-and-protocol-for-a-mixed-methods-evaluation-of-an-intervention-to-reduce-and-break-up-sitting-time-in-prima