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Stiffness of the human foot and evolution of the transverse arch
https://oist.repo.nii.ac.jp/records/1532
https://oist.repo.nii.ac.jp/records/1532091dfc95-78e5-4d55-8ddb-8c1773f65965
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
41586_2020_2053_Author (22.4 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2020-05-29 | |||||
| タイトル | ||||||
| タイトル | Stiffness of the human foot and evolution of the transverse arch | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者（英） |
Venkadesan, Madhusudhan
× Venkadesan, Madhusudhan× Yawar, Ali× Eng, Carolyn M.× Dias, Marcelo A.× Singh, Dhiraj K.× Tommasini, Steven M.× Haims, Andrew H.× Bandi, Mahesh M.× Mandre, Shreyas |
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| 書誌情報 |
en : Nature 巻 579, 号 7797, p. 97-100, 発行日 2020-02-26 |
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| 抄録 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The stiff human foot enables an efficient push-off when walking or running, and was critical for the evolution of bipedalism(1-6). The uniquely arched morphology of the human midfoot is thought to stiffen it(5-9), whereas other primates have flat feet that bend severely in the midfoot(7,10,11). However, the relationship between midfoot geometry and stiffness remains debated in foot biomechanics(12,13), podiatry(14,15) and palaeontology(4-6). These debates centre on the medial longitudinal arch(5,6) and have not considered whether stiffness is affected by the second, transverse tarsal arch of the human foot(16). Here we show that the transverse tarsal arch, acting through the inter-metatarsal tissues, is responsible for more than 40% of the longitudinal stiffness of the foot. The underlying principle resembles a floppy currency note that stiffens considerably when it curls transversally. We derive a dimensionless curvature parameter that governs the stiffness contribution of the transverse tarsal arch, demonstrate its predictive power using mechanical models of the foot and find its skeletal correlate in hominin feet. In the foot, the material properties of the inter-metatarsal tissues and the mobility of the metatarsals may additionally influence the longitudinal stiffness of the foot and thus the curvature-stiffness relationship of the transverse tarsal arch. By analysing fossils, we track the evolution of the curvature parameter among extinct hominins and show that a human-like transverse arch was a key step in the evolution of human bipedalism that predates the genus Homo by at least 1.5 million years. This renewed understanding of the foot may improve the clinical treatment of flatfoot disorders, the design of robotic feet and the study of foot function in locomotion. | |||||
| 出版者 | ||||||
| 出版者 | Nature Research | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0028-0836 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1476-4687 | |||||
| PubMed番号 | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | info:pmid/32103182 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1038/s41586-020-2053-y | |||||
| 権利 | ||||||
| 権利情報 | © 2020 The Author(s), under exclusive licence to Springer Nature Limited. | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1038/s41586-020-2053-y | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
