Digit Ratio (2d4d) and Performance in Indian Swimmers.
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Date
2013-01
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Abstract
It has been suggested that achievement in sports is correlated
with a putative measure of prenatal testosterone the 2nd to 4th digit ratio
(2D: 4D). It has been shown that digit ratio (2D: 4D) is negatively associated
with prenatal testosterone, and it is also negatively associated with ability
in sports. This study examined associations between 2D: 4D and performance
of both male and female National level Indian swimmers. Age matched
non-sports personnel formed the control. Lengths of second and fourth
digits were measured after scanning both hands and their ratio calculated.
Our results show lower 2D:4D values in males compared to females (P<0.05).
Among male, but not female, swimmers had significantly (P<0.05) lower
2D: 4D ratio. Low 2D: 4D in male swimmers suggests they are more
prenatally programmed via long-lasting extra genital effects of testosterone.
2D: 4D ratio could be used to identify young sports personnel who have
potential to reach high levels of performance.
Description
Keywords
2D: 4D ratio, prenatal testosterone, sports
Citation
Sudhakar H H, Umesh B Veena, Nadig Tejaswi R. Digit Ratio (2d4d) and Performance in Indian Swimmers. Indian Journal of Physiology and Pharmacology. 2013 Jan-Mar; 57(1): 72-76.