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Travis_0004

(5,417 posts)
3. I thought it was well accepted there are differences
Wed Jul 13, 2016, 10:32 PM
Jul 2016

People of different backgrounds have different muscle fibers. Somebody with comparatively little fast twitch fibers is not going to compete at the highest levels of the 100m. They physically can not go as fast.

Its been said that somebody without the ACTN3 gene can not win at certain olympic sports. Hard work makes the differences at lower levels, but in higher leves genes to make a difference.

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