The influence of mobility strategy on the modern human talus

Rita Sorrentino, Nicholas B. Stephens, Kristian J. Carlson, Carla Figus, Luca Fiorenza, Stephen Frost, William Harcourt-Smith, William Parr, Jaap Saers, Kevin Turley, Stephen Wroe, Maria G. Belcastro, Timothy M. Ryan, Stefano Benazzi

Research output: Contribution to journalArticle

Abstract

Objectives: The primate talus is known to have a shape that varies according to differences in locomotion and substrate use. While the modern human talus is morphologically specialized for bipedal walking, relatively little is known on how its morphology varies in relation to cultural and environmental differences across time. Here we compare tali of modern human populations with different subsistence economies and lifestyles to explore how cultural practices and environmental factors influence external talar shape. Materials and Methods: The sample consists of digital models of 142 tali from 11 archaeological and post-industrial modern human groups. Talar morphology was investigated through 3D (semi)landmark based geometric morphometric methods. Results: Our results show distinct differences between highly mobile hunter-gatherers and more sedentary groups belonging to a mixed post-agricultural/industrial background. Hunter-gatherers exhibit a more “flexible” talar shape, everted posture, and a more robust and medially oriented talar neck/head, which we interpret as reflecting long-distance walking strictly performed barefoot, or wearing minimalistic footwear, along uneven ground. The talus of the post-industrial population exhibits a “stable” profile, neutral posture, and a less robust and orthogonally oriented talar neck/head, which we interpret as a consequence of sedentary lifestyle and use of stiff footwear. Discussion: We suggest that talar morphological variation is related to the adoption of constraining footwear in post-industrial society, which reduces ankle range of motion. This contrasts with hunter-gatherers, where talar shape shows a more flexible profile, likely resulting from a lack of footwear while traversing uneven terrain. We conclude that modern human tali vary with differences in locomotor and cultural behavior.

Original languageEnglish (US)
Pages (from-to)456-469
Number of pages14
JournalAmerican Journal of Physical Anthropology
Volume171
Issue number3
DOIs
StateAccepted/In press - Jan 1 2019

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Talus
subsistence economy
cultural behavior
post-industrial society
environmental factors
Group
Posture
Walking
lack
Neck
Head
Sedentary Lifestyle
Locomotion
Articular Range of Motion
Ankle
Primates
Population
Life Style
time

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Anthropology

Cite this

Sorrentino, R., Stephens, N. B., Carlson, K. J., Figus, C., Fiorenza, L., Frost, S., ... Benazzi, S. (Accepted/In press). The influence of mobility strategy on the modern human talus. American Journal of Physical Anthropology, 171(3), 456-469. https://doi.org/10.1002/ajpa.23976
Sorrentino, Rita ; Stephens, Nicholas B. ; Carlson, Kristian J. ; Figus, Carla ; Fiorenza, Luca ; Frost, Stephen ; Harcourt-Smith, William ; Parr, William ; Saers, Jaap ; Turley, Kevin ; Wroe, Stephen ; Belcastro, Maria G. ; Ryan, Timothy M. ; Benazzi, Stefano. / The influence of mobility strategy on the modern human talus. In: American Journal of Physical Anthropology. 2020 ; Vol. 171, No. 3. pp. 456-469.
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Sorrentino, R, Stephens, NB, Carlson, KJ, Figus, C, Fiorenza, L, Frost, S, Harcourt-Smith, W, Parr, W, Saers, J, Turley, K, Wroe, S, Belcastro, MG, Ryan, TM & Benazzi, S 2020, 'The influence of mobility strategy on the modern human talus', American Journal of Physical Anthropology, vol. 171, no. 3, pp. 456-469. https://doi.org/10.1002/ajpa.23976

The influence of mobility strategy on the modern human talus. / Sorrentino, Rita; Stephens, Nicholas B.; Carlson, Kristian J.; Figus, Carla; Fiorenza, Luca; Frost, Stephen; Harcourt-Smith, William; Parr, William; Saers, Jaap; Turley, Kevin; Wroe, Stephen; Belcastro, Maria G.; Ryan, Timothy M.; Benazzi, Stefano.

In: American Journal of Physical Anthropology, Vol. 171, No. 3, 01.03.2020, p. 456-469.

Research output: Contribution to journalArticle

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AU - Frost, Stephen

AU - Harcourt-Smith, William

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AU - Saers, Jaap

AU - Turley, Kevin

AU - Wroe, Stephen

AU - Belcastro, Maria G.

AU - Ryan, Timothy M.

AU - Benazzi, Stefano

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Sorrentino R, Stephens NB, Carlson KJ, Figus C, Fiorenza L, Frost S et al. The influence of mobility strategy on the modern human talus. American Journal of Physical Anthropology. 2020 Mar 1;171(3):456-469. https://doi.org/10.1002/ajpa.23976