A geometric morphometric study into the sexual dimorphism of the human scapula

Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen
Y ScholtzE Pretorius

Abstract

Sex determination is vital when attempting to establish identity from skeletal remains. Two approaches to sex determination exists: morphological and metrical. The aim of this paper was to use geometric morphometrics to study the shape of the scapula and its sexual dimorphism. The sample comprised 45 adult black male and 45 adult black female scapulae of known sex. The scapulae were photographed and 21 homologous landmarks were plotted to use for geometric morphometric analysis with the 'tps' series of programs, as well as the IMP package. Consensus thin-plate splines and vector plots for males and females were compared. The CVA and TwoGroup analyses indicated that significant differences exist between males and females. The lateral and medial borders of females are straighter while the supraspinous fossa is more convexly curved than that of males. More than 91% of the females and 95% of the males were correctly assigned. Hotelling's T(2)-test yielded a significant p-value of 0.00039. In addition, 100 equidistant landmarks representing the curve only were also assigned. These, however, yielded considerably poorer results. It is concluded that it is better to use homologous landmarks rather than curve data only, as it is most pr...Continue Reading

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Citations

Jun 13, 2013·Journal of Forensic and Legal Medicine·Kewal KrishanBahadur Singh
Jun 6, 2013·Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen·V L Vance, M Steyn
Sep 4, 2015·American Journal of Physical Anthropology·Aniol PujolDaniel Turbón
Jun 22, 2012·Homo : internationale Zeitschrift für die vergleichende Forschung am Menschen·D Psonak, B Kwiatkowska
Dec 6, 2011·Forensic Science International : Synergy·Vasiliki A PapaioannouManolis Michalodimitrakis
Nov 6, 2013·Science & Justice : Journal of the Forensic Science Society·Rodrigo M BarrosSelma A S Kuckelhaus
Aug 8, 2014·PloS One·Brenda A Álvarez-SandovalRafael Montiel
Dec 29, 2019·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Satoshi IwashitaShinro Takai

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