Sexual dimorphism in metacarpal dimensions and body size of mexican school children

John H. Himes, Robert M. Malina

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The hypothesis that patterns of sexual dimorphism in transverse dimensions of the metacarpal only reflect sex differences in body size was investigated in a sample of 324 Mexican school children 6.00-10.99 years of age. Several patterns of sexual dimorphism in second metacarpal dimensions are seen with regard to stature and weight. Sex differences in medullary diameter and percent cortical area are not related to sexual dimorphism in body size, while sex differences in cortical thickness are related to, but not fully explained by. differences in body size. Dimorphism in metacarpal diaphyseal diameter is related to differences in body size, but, at a constant body size and age, boys still have significantly larger diaphyseal diameters than girls. Finally, sexual dimorphism in cortical area is closely associated with sex differences in body size.

Original languageEnglish (US)
Pages (from-to)15-20
Number of pages6
JournalCells Tissues Organs
Volume99
Issue number1
DOIs
StatePublished - 1977
Externally publishedYes

Keywords

  • Bone
  • Metacarpal II
  • Mexico
  • Sexual dimorphism
  • Stature
  • Weight

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