Digit ratio (2D:4D) and handgrip strength in a Chinese population of Han ethnicity

In humans, the relative lengths of the index finger to the ring finger (2D:4D) is a sexually dimorphic trait which correlated with prenatal sex steroids and has been increasingly used as a promising tool to evaluate the impact of prenatal hormone exposure in some traits, such as physical performance. Handgrip strength (HGS) is one potent index of physical ability and its relationship with 2D:4D ratio has been discussed in several ethnic groups.

Source: Early Human Development - September 25, 2016 Category: Perinatology & Neonatology Authors: Dan Shen, Zhanbing Ma, Lu Wang, Zhenghao Huo, Hong Lu, Junli Zhao, Wenli Qian Source Type: research