The speed of a human being is determined by the wavelength (the size of the stride),the frequecy (number of times stride is made in a second) and endurance (how long performance can be sustained)

That said,BOLT's longer legs gives him wider stride than the other competitors - measured between toe-to-toe of the two legs alternately.

The Frequency depends on the athletes physical strength and training. This is achieved via the gym and regular practice/routine. Almost of the 100M runners looked physically ok,evidenced by their muscular stature.

Endurance: This is determined by how first energy can be supplied into the muscles to sustain the propelling motion. The blood circulatory system,the oxygen cycle (breathing system) and the rate at which the acids generated in the joints is removed determines the endurance. This aspect is obtained through practice. The brain can however be 'cheated' through use of inhibitors that block the 'tired' signals from being sensed by the brains ( just as panadol block pain signals from the brain).

Endurace may not be as critical for the short/dash races as for the longer races,but the Wavelength and frequency is critical.

BOLT has a higher wavelength,almost same frequecy as the rest and his practice of many years could have given him endurance. Thus his long stride and physical strength is key to his victory.

Taller stronger humans will be required to bring the record to sub 8-Seconds. Computations based on current tall humans in Russia and some parts of Africa,based on physical builts of former Slaves in the America's predicts a max human speed of 7 seconds. This combination would be rare unless there is a cross bread of Blacks race and some selected Russian humans.





Life is worth living cos God planned it to be so.

@ Maichblack,LMAO

@ Extrablessed,you are spot on..the guy just has the perfect mix...like Buffet in investments.

The thicker the thigh the sweeter the pie.

I have heard several guys say that Usain Bolt reduced his speed 'as usual' towards the finish of 100m. I however disagree. Do you think otherwise? If so,could he have made it at 9.00 to humilate Gay further. Just an assumption!

lets meet at the hague

Ocampo

C'mon chap,why run 9.5 flat when guys are a stride away,rather slow it but break the record from pole position and milk the remaining time gap for commerical value it presents. Its a no brainer ask Sergei bubka and yelena isibayeva

This guy was never there in the first place....should be banned for life now