Structural and mechanical indicators of limb specialization in primates.

M. B. Schaffler, David Burr, W. L. Jungers, C. B. Ruff

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

The structural mechanics of femora and humeri from primates representing a wide spectrum of habitual locomotor activities were examined to determine how cross-sectional properties vary with functional specializations of the extremities. Average bending rigidities of the midshaft of humerus and femur were measured in 60 individuals of four nonhuman primate species (Macaca nemestrina, Macaca fascicularis, Presbytis cristata, Hylobates lar) using single-beam photon absorptiometry. Linear regression analyses of the loge transformed data were used to assess the relative usage of the forelimb and hindlimb in propulsion and weight bearing, and to evaluate deviations from generalized mammalian quadrupedalism. The results suggest that average bending rigidities of the humerus and femur in primates reflect the extent to which the forelimb and hindlimb are used differently in locomotion; deviations of average bending rigidity from geometric similarity indicate functional variations from generalized mammalian quadrupedalism and the ratio of humeral to femoral bending rigidity can be used to identify trends towards hindlimb or forelimb dominance in locomotion and can be employed in general to determine how the limb was used.

Original languageEnglish
Pages (from-to)61-75
Number of pages15
JournalFolia Primatologica
Volume45
Issue number2
StatePublished - 1985
Externally publishedYes

Fingerprint

humerus
rigidity
forelimbs
limbs (animal)
femur
primate
locomotion
limb
Primates
Presbytis
Macaca nemestrina
Macaca fascicularis
thighs
mechanics
hindlimbs
indicator

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Schaffler, M. B., Burr, D., Jungers, W. L., & Ruff, C. B. (1985). Structural and mechanical indicators of limb specialization in primates. Folia Primatologica, 45(2), 61-75.

Structural and mechanical indicators of limb specialization in primates. / Schaffler, M. B.; Burr, David; Jungers, W. L.; Ruff, C. B.

In: Folia Primatologica, Vol. 45, No. 2, 1985, p. 61-75.

Research output: Contribution to journalArticle

Schaffler, MB, Burr, D, Jungers, WL & Ruff, CB 1985, 'Structural and mechanical indicators of limb specialization in primates.', Folia Primatologica, vol. 45, no. 2, pp. 61-75.
Schaffler MB, Burr D, Jungers WL, Ruff CB. Structural and mechanical indicators of limb specialization in primates. Folia Primatologica. 1985;45(2):61-75.
Schaffler, M. B. ; Burr, David ; Jungers, W. L. ; Ruff, C. B. / Structural and mechanical indicators of limb specialization in primates. In: Folia Primatologica. 1985 ; Vol. 45, No. 2. pp. 61-75.
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