Friday 14 August 2009

The World's Fastest Men!


In all recorded history, a human being has run a sub 9.80 seconds time for the 100m sprint (electronically timed and not wind assisted) on only 15 occasions. The 14 fastest times of those have been recorded by three men: Usain Bolt, Asafa Powell and Tyson Gay. On August 16 of this year, the three of them are scheduled to meet in the 100m finals in Berlin and barring bad weather or wind, the world record of 9.69 seconds set in Beijing last year is surely set to fall.

All three contenders are of West African origin. Two of them have been born in the Carribean to parents of West African origin. You see where I'm going? What do Ben Johnson, Linford Christie, Donovon Bailey, Asafa Powell, Bruny Surin, Ato Bolden, Kim Collins and Usain Bolt have in common? Some of the greatest 100m sprinters in history- yes, but also all born in the Carribean. Careful not to extrapolate a different strain of Hitler's superman theory, I am never the less compelled to ask the question "is there a genetic disposition to fast running in Carribean men?"

Since the advent of electronic timing in 1976, every single 100m world record has been set by a male of West African descent, leading to un-empirical theories that suggest that Afro-Carribean runners benefit genetically from the slave trade, "with people on the western most parts of the Carribean being the progeny of only the fittest of fit slaves." While proper nutrition and state of the art coaching and facilities have their part to play in the making of world class sprinters, raw atheletic abilities are a critical ingredient.

So leaning towards the theory that it is some genetically inherited fast twitch muscles that make you move your legs faster, I researched the subject a bit and came up with the surprising result in the Journal of Applied Physiology. Research suggests that faster speeds are achieved with greater ground forces, not faster leg movements. If you compare the fastest runner against a slower runner, there is virtually no difference between them in how fast one repositions the legs for the next step.

A sprinter achieves a world record by packing more force into each stride and covering nearly twice the ground with each step, not by taking less time to swing the other leg and arm into position. This is part of the reason world class sprinters appear so elegant--the stride is fluid and casual. By hitting the ground harder they are able to increase both stride length and frequency and therefore run faster. But they don't need any more time to swing the arms and legs than we do.

So its technique after all? I'm as confused as you are but at least that explains why the taller Usain Bolt is set to run the fastest any human being has ever run over 100m in Berlin in two days. You heard it here first!

1 comment:

Anonymous said...

so did you put any money on this?