AUTHOR=MacNamara Áine , Collins Dave , Giblin Susan TITLE=Just let them play? Deliberate preparation as the most appropriate foundation for lifelong physical activity JOURNAL=Frontiers in Psychology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2015.01548 DOI=10.3389/fpsyg.2015.01548 ISSN=1664-1078