”The career of Usain Bolt has to be nike air diamond turf 2 shoes judged when the career stops,” said Rogge, who criticized the Jamaican four years ago for showboating by slapping himself on the chest at the finish of the 100.
“Let him participate in three, four games, and he can be a legend,” Rogge added. “Already he’s an icon.”
An icon the Olympics would love to keep around.
Almost single-handedly, Bolt has helped track transform itself from a dying sport to one with a singular, smiling, worldwide star.
He turns 26 this month, however, and didn’t sound completely sold on sticking around through the Rio Olympics in 2016.
“It’s going to be a hard mission,” he said.
Mark Denny, a professor at Stanford who studies the biomechanics of mussels, crabs, and kelp, published a paper in 2008 titled “Limits to running nike lebron 9 low sale peed in dogs, horses and humans.” Denny, who analyzed trends in on-track achievement and population data to predict the maximum rate at which humans can run, concluded that the fastest achievable 100 meter speed is probably 9.48 seconds—0.10 seconds faster than Bolt’s current world record. Writes Denny: “Bolt’s records are not out of line with the logistic fit to the historical data…. there is nothing in Bolt’s records to suggest that the predictions made here are inaccurate or that human speeds in the 100-meter and 200-meter races are limitless.”
Of course, Denny published his paper before Bolt smashed his own world record in 2009, running the 100-meter dash in 9.58 seconds—a full 1 percent faster than his previous record time of 9.69 seconds. This drastic improvement doesn’t necessarily refute Denny’s points, but it does serve to underscore the limitations of peak speed prediction. Denny himself acknowledges these limitations, noting in his paper that it is much easier to predict peak speeds for nike air max terra sertig sale gs and horses than it is for men, and that, in any event, “all such extrapolations must be used cautiously.”
How else might Bolt continue to improve his speeds? Mathematician John Barrow thinks that if Bolt can improve his reaction time off the starting blocks, he could lower his record to 9.55 seconds; if he was also running at altitude and with a tailwind, he might get down to 9.47 seconds.