The planned growth of "extended schools" could be the opportunity to get more children involved in sport, outside the main school-day.

BBC: Finding time for sport

Both Mr Cameron and Ms Jowell said they hoped the volunteers would get involved in a new charity Join in Local Sport which is helping thousands of clubs and community groups throw open their doors to "capture the enthusiasm" for sport after the Olympics.

BBC: Boris Johnson urges two hours of PE a day

"Anybody involved with squash wants to see the sport get there, everybody thinks it's already in there and just assume we are part of the Games, " she said.

CNN: Supreme fitness