He said, 'Alberto, that's Sprint 101 biomechanics!' " According to Johnson, sprinters retract their trailing leg quickly for two reasons: it generates power, and it means that the foot has a shorter distance to travel before it arrives back in position for another stride.
Glasgow 2014 Ambassador, Tom Daley, said: "I was so honoured to be asked to carry the Queen's Baton as it arrives back on British soil.
When I arrived back, it was nearly dark.
When I arrived back at the Mercedes hospitality unit, it was standing room only.
Earlier today, I arrived back in San Francisco.
"It's had a brilliant run around the coast, and it's surprised us all that it's arrived back so quickly," Mr Goodhew said.
It's been like waving a ship out of port for its voyage and now I am waiting for it it to arrive back with a new and interesting load gathered from a world outside.
His facial expression is calm (even smug) and comfortable; have they perhaps retouched his skin to make it look like he's arrived back from a holiday in warmer climes?
"Vanessa underwent a long operation having arrived back in Vienna and we believe it has helped to stabilise her condition".
