Digit ratio (2D:4D) moderates the change in handgrip strength on an aggressive stimulus: a study among Polish young adults
PBN-AR
Instytucja
Wydział Wychowania Fizycznego (Akademia Wychowania Fizycznego we Wrocławiu)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Early Human Development
ISSN
0378-3782
EISSN
Wydawca
ELSEVIER IRELAND LTD
DOI
URL
Rok publikacji
2019
Numer zeszytu
January
Strony od-do
62-68
Numer tomu
128
Link do pełnego tekstu
Liczba arkuszy
Słowa kluczowe
en
Digit ratio
2D:4D
Handgripstrength
Prenatal testosterone
Aggression
Streszczenia
Język
en
Treść
Background: The ratio of the lengths of second finger (2D) to the fourth (4D) is a putative indicator of foetal hormonal exposure. The link between 2D:4D and physical strength or sports performance in not consistent. It was suggested that the association of 2D:4D with the sporting and physical ability is better demonstrated in the context of challenge and competition, either real or simulated. However the evidence is limited to a few studies till date. Aim: The objective of this study was to assess whether an aggressive video show could increase muscular strength and if 2D:4D moderated such increase. Study design: We compared outcome measures in two experimental conditions. Outcome measures: Lengths of second (2D) and fourth (4D) digits and their ratio (2D:4D) for both hands, height and weight, handgrip strength of both hands. Subjects: 250 healthy young adults (76 female). Results: The mean left-, right- and average HGS values increased after aggressive video watching than after control blank screen show. The increase was higher in females compared to males. The increase was higher among the individuals with lower 2D:4D, more clearly among females. Conclusions: The 2D:4D correlated negatively with HGS after exposure to challenge condition and this relationship is pronounced in females than males. Thus there is link between prenatal androgenisation and enhanced physical power in challenge situation.
Cechy publikacji
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:898139
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