TY  - JOUR
PY  - 2016//
TI  - Why is digit ratio correlated to sports performance?
JO  - Journal of exercise rehabilitation
A1  - Kim, Tae Beom
A1  - Kim, Khae Hawn
SP  - 515
EP  - 519
VL  - 12
IS  - 6
N2  - Second to fourth digit ratio is the ratio of second to fourth digit length. It has been known that digit ratio is sexually dimorphic in humans, such that males tend to have lower digit ratio (longer fourth digits relative to second digits) than females. Digit ratio is thought to be a biomarker of the balance between fetal testosterone (FT) and fetal estrogen (FE) in a relatively narrow developmental window at the end of the first trimester of pregnancy. On the contrary, the relationships between digit ratio and levels of sex steroids in adults are not clear. Most correlational studies between digit ratio and adult sex steroids have revealed that this association is statistically not significant. However, for many years, a lot of researches showed negative relationships between digit ratio and sports performance such as rugby, surfing, rowing, sprinting, endurance, and hand grip strength. Here, we discuss possible mechanisms about the relationships between digit ratio and sports performance.<p />  <p>Language: en</p>
LA  - en
SN  - 2288-176X
UR  - http://dx.doi.org/10.12965/jer.1632862.431
ID  - ref1
ER  -