Kirani James is one the most natural 400m runners I have ever seen.
Anyone who has competed in the 400m will tell you it is one of the events that hurts the most. When your body starts producing lactic acid it really hurts. After a well run 400m you want to be placed in a nice hot jacuzzi or you want the power to levitate.
When an athlete runs the 800m or longer distance their body uses mostly oxygen from the bloodstream as a source of energy, when you run a 400m there is not enough time to convert oxygen into energy because it does not occur quick enough, instead the energy is extracted from glucogen and the side effect is the production of lactic acid.
The stiffness you feel the morning after exercise is the effects of lactic acid.
If a huge amount of lactic acid enter your system in a matter of a minute it hurts.
Your ability to run is impaired, some people look like they are trying to run on one spot or even backwards.
Kirani James seems to be immune to the effects of lactic acid. He runs with a smooth fluid style.He ran 46.96 as a 15 year old. He won the World Youth Championship[s in 2009 running 45.24, He won the World Junior Championships in 2010 with 45.89 and the senior World Championships in Daegu in 2011 with 44.60.
He just won the London Olympics in 43.94, at 1.80 and 66kg he does not seem to be carrying any extra baggage around the track.
Most athletes produce their best performances after they turn 24. Kirani James seem destined to defend his Olympic title in 2016 and his World Championship titles in between!
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