One second in one hundred years raises a difficult question. In a century of technological and scientific progress, sprinting has barely improved.

At just 17, Gout Gout runs with stride lengths rivaling Usain Bolt. Yet he lacks the power base of elite sprinters. This paradox raises new questions about what really drives performance in sprinting.

Usain Bolt could run 100m in 9.11 seconds. Given his constitution, genetics and his running technique he has what it takes and then some.

Analysis of Usain Bolt’s 9.58 world-record sprint, examining step count, stride length, cadence, and the role of gravity in his running technique.