“…Development in PA is dynamic and non-linear (Simonton 2001;Memmert, Baker, & Bertsch, 2010) and there are multiple pathways that individuals may take as they progress in their activity Memmert, Baker, & Bertsch, 2010;Pankhurst & Collins, 2013). For present purposes, we consider how multiple pathways could be catered for within a development model: From our perspective, PA promotion should enable individuals to seamlessly move across a participation-performance continuum; engaging in a physically active life at any age or level (Collins et al, 2010;Collins et al, 2012;Jess & Collins 2003;MacNamara et al, 2011;Pankhurst & Collins 2013). Accordingly, it is crucial for development systems to offer maximum flexibility, enabling movement across the Participation-Performance-Excellence (PPE) continuum at any age.…”