Facial masculinity is only weakly correlated with handgrip strength in young adult women

Hahn, A. C. , Holzleitner, I. J. , Lee, A. J. , Kandrik, M. , O'Shea, K. J. , DeBruine, L. M. and Jones, B. C. (2019) Facial masculinity is only weakly correlated with handgrip strength in young adult women. American Journal of Human Biology, 31(1), e23203. (doi:10.1002/ajhb.23203) (PMID:30488525)

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Abstract

Objectives: Ancestrally, strength is likely to have played a critical role in determining the ability to obtain and retain resources and the allocation of social status among humans. Responses to facial cues of strength are therefore thought to play an important role in human social interaction. Although many researchers have proposed that sexually dimorphic facial morphology is reliably correlated with physical strength, evidence for this hypothesis is somewhat mixed. Moreover, to date, only one study has investigated the putative relationship between facial masculinity and physical strength in women. Consequently, we tested for correlations between handgrip strength and objective measures of face‐shape masculinity. Methods: 531 women took part in the study. We measured each participant's handgrip strength (dominant hand). Sexual dimorphism of face shape was objectively measured from each face photograph using two methods: discriminant analysis and vector analysis. These methods use shape components derived from principal component analyses of facial landmarks to measure the probability of the face being classified as male (discriminant analysis method) or to locate the face on a female‐male continuum (vector analysis method). Results: Our analyses revealed that handgrip strength is, at best, only weakly correlated with facial masculinity in women. There was a weak significant association between handgrip strength and one measure of women's facial masculinity. The relationship between handgrip strength and our other measure of women's facial masculinity was not significant. Discussion: Together, these results do not support the hypothesis that face‐shape masculinity is an important cue of physical strength, at least in women.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kandrik, Dr Michal and O'Shea, Dr Kieran and Jones, Professor Benedict and Lee, Dr Anthony and Hahn, Dr Amanda and Holzleitner, Dr Iris and Debruine, Professor Lisa
Authors: Hahn, A. C., Holzleitner, I. J., Lee, A. J., Kandrik, M., O'Shea, K. J., DeBruine, L. M., and Jones, B. C.
College/School:College of Medical Veterinary and Life Sciences > Institute of Neuroscience and Psychology
Journal Name:American Journal of Human Biology
Publisher:Wiley
ISSN:1042-0533
ISSN (Online):1520-6300
Published Online:29 November 2018
Copyright Holders:Copyright © 2018 Wiley Periodicals, Inc.
First Published:First published in American Journal of Human Biology 31(1): e23203
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
604381OCMATE Do oral contraceptives alter womens mate preferences?Benedict JonesEuropean Research Council (ERC)OCMATE FP7ERC282655RI NEUROSCIENCE & PSYCHOLOGY
672531KINSHIP: How do humans recognise kin?Lisa DebruineEuropean Research Council (ERC)647910RI NEUROSCIENCE & PSYCHOLOGY