When in 2005 the UK won the right to host the 2012 Olympics and Paralympics in London, the bid was as much based on the impact of holding the Games as upon the event itself.
Numerous legacy promises were made but key among those was increasing the number of people playing sport and turning the UK into "a world-leading sporting nation", highlighted by 2012's motto, "Inspire a Generation".
In the run-up to the Games, the government heralded "our best chance in a generation to encourage people to be more physically active", and in 2008 set a target to have at least two million more people in England being more active by 2012.