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Trabecular analysis of fossil hominid and ape bones by using micro CT

Research Project

Project/Area Number 16370104
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Anthropology
Research InstitutionKyoto University

Principal Investigator

NAKATSUKASA Masato  Kyoto University, Graduate School of Science, Associate professor, 大学院理学研究科, 助教授 (00227828)

Co-Investigator(Kenkyū-buntansha) OGIHARA Naomichi  Kyoto University, Graduate School of Science, Assistant Professor, 大学院理学研究科, 助手 (70324605)
KUNIMATSU Yutaka  Kyoto University, Primate Institute, Assistant Professor, 霊長類研究所, 助手 (80243111)
ITAYA Tetsumaru  Okayama University of Science, Natural Science Research Institute, Professor, 自然科学研究所, 教授 (60148682)
NAKANO Yoshihiko  Osaka University, Graduate School of human Science, Associate professor, 大学院人間科学研究科, 助教授 (50217808)
平崎 鋭矢  大阪大学, 大学院人間科学研究科, 助手 (70252567)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,400,000 (Direct Cost: ¥15,400,000)
Fiscal Year 2006: ¥4,400,000 (Direct Cost: ¥4,400,000)
Fiscal Year 2005: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 2004: ¥6,300,000 (Direct Cost: ¥6,300,000)
Keywordshuman evolution / locomotion / trabecular bone / trabecular analysis / (bone) remodeling / fossils / Africa / Kenya / 骨梁 / バイオメカニクス / CT / 類人猿 / 二足性 / ホミニド / 化
Research Abstract

The purpose of this study was to reconstruct locomotor behavior in fossil apes and early hominids by examining trabecular structure of the femoral head. Fossil specimens housed in the National Museums of Kenya were CT scanned by a portable pQCT with a resolution of 65-50 micrometer. Although many of the specimens were too heavily mineralized forCT scanning, good images were obtained from a certain number of specimens such as KNM-ER738 Australopithecus boisei and many of Nacholapithecus specimens. A spherical region of interest (5 mm in diameter) was extracted from the superior part of the head and analyzed by the Quant 3D program. The rose diagram in modern human showed a high anisotropy with the principal axis running superoinferiorly with a slight inferoanterior tilt, suggesting a high stress during the support phase with a emphasis by a heel strike. The rose diagram was a plate-like as a whole. A. boisei exhibited a similar rose diagram to modern human's. In chimpanzee, a high anisotropy was observed. The principal axis was oriedted superoposterior-toinferoanteriorly with a slight inferolateral tilt. The rose diagram was rod-like rather than plate-lie. In orangutan, the rose diagram was rod-like with high anisotropy from the bone surface to the center of the femoral head. In Nacholapithecus, the rose diagram resembles that of orangutan, but degree of anisotropy was lower. Non-specialized and less stereotypical limb use in daily locomotor behavior was suggested.

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (19 results)

All 2007 2006 2005 2004

All Journal Article (17 results) Book (2 results)

  • [Journal Article] Femoral length, body mass, and stature estimates of Orrorin tugenensis, a 6 Ma hominid from Kenya2007

    • Author(s)
      M.Nakatsukasa et al.
    • Journal Title

      Primates (In press)(NA)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Vertebral morphology of Nacholapithecus kerioi based on KNM-BG 352502007

    • Author(s)
      M.Nakatsukasa et al.
    • Journal Title

      Journal of Human Evolution 52(3)

      Pages: 347-369

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Femoral length, body mass, and stature estimates of Orrorin tugenensis, a 6 Ma hominid from Kenya2007

    • Author(s)
      M.Nakatsukasa et al.
    • Journal Title

      Primates (In press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Late Miocene primate fauna in Nakali, central Kenya2006

    • Author(s)
      M.Nakatsukasa, Y.Kunimatsu, et al.
    • Journal Title

      Am. J. Phys. Anthropol. (Suppl) 42(1)

      Pages: 136-136

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Computerized restoration of nonhomogeneous deformation of a fossil cranium based on bilateral symmetry2006

    • Author(s)
      N.Ogihara, M.Nakatsukasa, et al.
    • Journal Title

      Am. J. Phys. Anthropol. 130(1)

      Pages: 1-9

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Late Miocene primate fauna in Nakali, central Kenya2006

    • Author(s)
      M.Nakatsukasa, Y.Kunimatsu, et al.
    • Journal Title

      Am.J.Phys.Anthropol. (Suppl) 42(1)

      Pages: 136-136

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] Computerized restoration of nonhomogeneous deformation of a fossil cranium based on bilateral symmetry2006

    • Author(s)
      N.Ogihara, M.Nakatsukasa, et al.
    • Journal Title

      Am.J.Phys.Anthropol. 130(1)

      Pages: 1-9

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Computerized restoration of nonhomogeneous deformation of a fossil cranium based on bilateralsymmetry2006

    • Author(s)
      N.Ogihara, M.Nakatsukasa, et al.
    • Journal Title

      Am.J.Phys.Anthropol. (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Functional axis of the foot in primates estimated using the distribution of plantar muscles2006

    • Author(s)
      E.Hirasaki, H.Kumakura
    • Journal Title

      Am.J.Phys.Anthropol. (Suppl) 42(1)

      Pages: 104-104

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Energy expenditure of bipedal walking is higher than that of quadrupedal walking in Japanese macaques2006

    • Author(s)
      M.Nakatsukasa, E.Hirasaki, N.Ogihara
    • Journal Title

      Am.J.Phys.Anthropol. (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] An infant skeleton of Nacholapithecus and ontognetic development of postcranial features2005

    • Author(s)
      M.Nakatsukasa, Y.Kunimatsu, et al.
    • Journal Title

      Am. J. Phys. Anthropol. (Suppl) 40(1)

      Pages: 154-155

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Trabecular bone structure in a bipedally trained macaque2005

    • Author(s)
      B.Richmond, M.Nakatsukasa, et al.
    • Journal Title

      Am. J. Phys. Anthropol. (Suppl) 40(1)

      Pages: 175-176

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] An infant skeleton of Nacholapithecus and ontognetic development of postcranial features2005

    • Author(s)
      M.Nakatsukasa, Y.Kunimatsu, et al.
    • Journal Title

      Am.J.Phys.Anthropol. (Suppl) 40(1)

      Pages: 154-155

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Trabec ular bone structure in a bipedally trained macaque2005

    • Author(s)
      B.Richmond, M.Nakatsukasa, et al.
    • Journal Title

      Am.J.Phys.Anthropol. (Suppl) 40(1)

      Pages: 175-176

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] An infant skeleton of Nacholapithecus and ontognetic development of postcranial features2005

    • Author(s)
      M.Nakatsukasa, Y.Kunimatsu, et al.
    • Journal Title

      Am.J.Phys.Anthropol.(Suppl) 40(1)

      Pages: 154-155

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Trabecular bone structure in a bipedally trained macaque2005

    • Author(s)
      B.Richmond, M.Nakatsukasa, et al.
    • Journal Title

      Am.J.Phys.Anthropol.(Suppl) 40(1)

      Pages: 175-176

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Do highly trained monkeys walk like humans? A kinematic study of bipedal locomotion in bipedally trained Japanese macaques2004

    • Author(s)
      E.Hirasaki, N.Ogihara, et al.
    • Journal Title

      J.Hum.Evol. 46(6)

      Pages: 739-750

    • Related Report
      2004 Annual Research Report
  • [Book] ヒトの科学1・ヒトはどのようにしてつくられたか2007

    • Author(s)
      中務真人 (分担執筆)
    • Total Pages
      232
    • Publisher
      岩波書店
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] ヒトの科学1・ヒトはどのようにしてつくられたか2007

    • Author(s)
      中務真人(分担執筆)
    • Total Pages
      232
    • Publisher
      岩波書店
    • Related Report
      2006 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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