Usain Bolt, fastest man on earth, sprint talent is in his fingers!

Usain Bolt has the marker for sprint talent: a long ring finger!

The 2008 olympics in Beijing pointed out that Jamaican sprinter Usain Bolt is the fastest man on sprint ever! And last sunday he set another new world record at the Athletics World Championships 2009 Berlin. How come that Jamaican sprinters run so fast?

Earlier this year British researchers studied the hands of 241 boys aged 10 to 17 who took part in a sports talent-spotting competition in Qatar. And the results pointer out that a low 2D:4D finger ratio is linked with a fast sprint!

Professor John T. Manning (a.k.a. ‘the finger professor’) about the research:

“We found finger ratios of the right and left hand were positively linked with sprinting times in boys. The advantage they had was soon apparent after the start of the sprint and remained steady thereafter.”

Previous studies have confirmed the link between finger length and sprint talent: long-distance runners have the same hand characteristics – a ‘low 2D:4D finger ratio. But to understand the implications in this perspective one should be aware that the long ring fingers has also been linked with other ‘testosterone’ related matters such as: a lower risk of heart disease and good results in exam success in mathematics, to male aggression and higher earnings at the London Stock Exchange.

So the predictive value of a long ring finger is actually pretty, and certainly not reliable in individual subjects.

Nevertheless, John T. Manning has described in his first book – ‘Digit Ratio’ – that the hands of Jamaicans are usually featured with a relatively long ring finger – which is confirmed by various hand photos of the most successful sprinters from Jamaica (see the photo below).

RELATED ARTICLES:

The hands Usain Bolt – olympic world record holder sprint!
Usain Bolt has the long ring finger – measure for sprint talent
Finger length explains the success of Jamaican sprinters!
About finger length & athletic succes
Why Jamaican sprinters run so fast!
Jamaican samples show low 2D:4D ratio

Female sprinters from Jamaica have the long ring finger!

Barack Obama: another left-handed US president

Next january elected president Barack Obama will likely become the 7th ‘left-handed’ US president in American history. Over the years there has been a discussion about high number of ‘left-handed’ presidents in American history. Actually, including Ronald Reagan, Barack Obama will become the 4th (out of five) left-handed president in less than 20 years. For, the current president, George W. Bush has been the only right-handed US president in the past two decades – his father and Bill Clinton are ‘lefties’ as well! Oh, and by the way, the other presidential candidate in 2008, senator John McCain, is also left-handed!

How come that so many US presidents are left-handed? Partly it’s a big mystery, but a quick hand reading of Obama’s hand might provide us a clue!

Barack Obama's left hand.

An interesting characteristic in Obama’s hand is ratio between his index finger (2th digit) and ring finger (4th digit). Professor John T. Manning named this specific finger ratio the ‘digit ratio’ (2D:4D). One of the interesting findings regarding this ‘digit ratio’ is Manning’s theory that a LOW DIGIT RATIO is likely to the result of an overabundance of testosterone in the mother’s womb during pregnancy. Not long ago another research program was published at the University of Melbourne, which reported that left-handednes can also be linked to a ‘LOW DIGIT RATIO’. And therefore there appears to be spectacular ‘triple-link’ between: (1) left-handedness, (2) ‘LOW DIGIT RATIO’, and (3) the fact that so many US presidents are left-handed!!!

Ronald Reagan's right hand.

How to measure the ‘digit ratio’ of a hand?

The picture on right describes the key-elements: first you’ll need to identify the onset of both the index- and ring finger. Then you’ll have to measure the absolute length of these finger – the length from the onset to the tip of the finger. And finally you’ll need to do a calculation: the ratio between the length of both fingers!

How to measure digit ratio!

READ FURTHER ABOUT DIGIT RATIO, HANDEDNESS & US PRESIDENTS HANDS:
Barack Obama is the 7th left-handed US president!
Digit ratio (2D:4D) linked with handedness.
Mr. Palmist, which hand do you read?
Digit ratio news