Endurance running and digit ratio (2D:4D): Implications for testosterone effects on running speed and vascular health

Authors :: Manning, John T.
Morris, Laura
Caswell, Noreen
Source :: American Journal of Human Biology. May-June, 2007, Vol. 19 Issue 3, 416-421
Publication Year :: 2007
Abstract: The sex-dependent nature of endurance running (ER) is found to be associated with the fetal testosterone (T) levels. The ratio of the length of the second and fourth digit (2D:4D) that is determined by the prenatal T levels influences the ER and aerobic efficiency.

Subjects :: Testosterone -- Health aspects
Endurance sports -- Health aspects
Biological sciences

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