Digit ratios and motor and health-related fitness in pre-adolescent females

Background: Assessing different aspects of physical fitness in children whose abilities are undeveloped and their associations with second-to-fourth digit ratio (2D:4D) may better determine the potential athleticism of an individual. Aim: The purpose of the study was to examine relationships between...

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Main Authors: Hamid Agha-Alinejad, Babak Farzad, Mina Akbari, Dani M. Moffit, Amirbahador Dakhili
Format: Article
Language:English
Published: Taylor & Francis Group 2019-04-01
Series:Annals of Human Biology
Subjects:
Online Access:http://dx.doi.org/10.1080/03014460.2019.1620332
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author Hamid Agha-Alinejad
Babak Farzad
Mina Akbari
Dani M. Moffit
Amirbahador Dakhili
author_facet Hamid Agha-Alinejad
Babak Farzad
Mina Akbari
Dani M. Moffit
Amirbahador Dakhili
author_sort Hamid Agha-Alinejad
collection DOAJ
description Background: Assessing different aspects of physical fitness in children whose abilities are undeveloped and their associations with second-to-fourth digit ratio (2D:4D) may better determine the potential athleticism of an individual. Aim: The purpose of the study was to examine relationships between the digit ratios and selected motor and health-related fitness parameters in a large sample of pre-adolescent females. Subjects and methods: Participants included 8–12 year old Iranian and Afghan girls. The length of the left and right second and fourth digits was measured by scanning and computer-assisted image analysis. Motor- and health-related fitness tests were evaluated. Results: No significant correlations were noted between right 2D:4D ratio and physical fitness components. Left 2D:4D and physical fitness components were not correlated, with the exception of handgrip strength (r = –0.193). However, right and left second digit lengths were negatively correlated with predicted VO2max (p ≤ 0.01). In addition, right–left 2D:4D was significantly negatively correlated with flexibility, and significantly positively correlated with height and body fat percentage. Conclusion: In contrast to previous investigations, it seems that left 2D:4D is a predictor of strength, but not aerobic exercise. It is suggested there may be a potential relationship between prenatal androgen exposure and high flexibility, low body fat percentage and the generation of muscular strength in pre-adolescent females.
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spelling doaj.art-6213a6245ef44f4eadaeef42823d866f2023-09-14T15:36:10ZengTaylor & Francis GroupAnnals of Human Biology0301-44601464-50332019-04-0146322523010.1080/03014460.2019.16203321620332Digit ratios and motor and health-related fitness in pre-adolescent femalesHamid Agha-Alinejad0Babak Farzad1Mina Akbari2Dani M. Moffit3Amirbahador Dakhili4Tarbiat Modares UniversityIran University of Medical SciencesAzad University, Tehran Central BranchIdaho State UniversityTarbiat Modares UniversityBackground: Assessing different aspects of physical fitness in children whose abilities are undeveloped and their associations with second-to-fourth digit ratio (2D:4D) may better determine the potential athleticism of an individual. Aim: The purpose of the study was to examine relationships between the digit ratios and selected motor and health-related fitness parameters in a large sample of pre-adolescent females. Subjects and methods: Participants included 8–12 year old Iranian and Afghan girls. The length of the left and right second and fourth digits was measured by scanning and computer-assisted image analysis. Motor- and health-related fitness tests were evaluated. Results: No significant correlations were noted between right 2D:4D ratio and physical fitness components. Left 2D:4D and physical fitness components were not correlated, with the exception of handgrip strength (r = –0.193). However, right and left second digit lengths were negatively correlated with predicted VO2max (p ≤ 0.01). In addition, right–left 2D:4D was significantly negatively correlated with flexibility, and significantly positively correlated with height and body fat percentage. Conclusion: In contrast to previous investigations, it seems that left 2D:4D is a predictor of strength, but not aerobic exercise. It is suggested there may be a potential relationship between prenatal androgen exposure and high flexibility, low body fat percentage and the generation of muscular strength in pre-adolescent females.http://dx.doi.org/10.1080/03014460.2019.16203322d:4d ratioethnicityfinger lengthflexibilityprenatal testosterone
spellingShingle Hamid Agha-Alinejad
Babak Farzad
Mina Akbari
Dani M. Moffit
Amirbahador Dakhili
Digit ratios and motor and health-related fitness in pre-adolescent females
Annals of Human Biology
2d:4d ratio
ethnicity
finger length
flexibility
prenatal testosterone
title Digit ratios and motor and health-related fitness in pre-adolescent females
title_full Digit ratios and motor and health-related fitness in pre-adolescent females
title_fullStr Digit ratios and motor and health-related fitness in pre-adolescent females
title_full_unstemmed Digit ratios and motor and health-related fitness in pre-adolescent females
title_short Digit ratios and motor and health-related fitness in pre-adolescent females
title_sort digit ratios and motor and health related fitness in pre adolescent females
topic 2d:4d ratio
ethnicity
finger length
flexibility
prenatal testosterone
url http://dx.doi.org/10.1080/03014460.2019.1620332
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AT danimmoffit digitratiosandmotorandhealthrelatedfitnessinpreadolescentfemales
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