Does the weakening of intrinsic foot muscles cause the decrease of medial longitudinal arch height?

• Okamura Kazunori

  Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan

• Kanai Shusaku

  Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan

• Oki Sadaaki

  Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan

• Tanaka Satoshi

  Department of Physical Therapy, Faculty of Health and Welfare, Prefectural University of Hiroshima, Japan

• Hirata Naohisa

  Department of Rehabilitation, Kisaka Hospital, Japan

• Sakamura Yoshiaki

  Department of Rehabilitation, National Hospital Organization, Hiroshima-Nishi Medical Center, Japan

• Idemoto Norikatsu

  Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan

• Wada Hiroki

  Graduate School of Comprehensive Scientific Research, Prefectural University of Hiroshima, Japan

• Otsuka Akira

  Hiroshima Cosmopolitan University, Japan

抄録

[Purpose] There are no reliable evidences that the weakening of intrinsic foot muscles causes the decrease of the medial longitudinal arch (MLA) height. The purpose of this study was to confirm whether the fatigue of intrinsic foot muscles decrease the MLA height during standing and gait using 3D motion analysis system. [Subjects and Methods] Twenty healthy male subjects participated in this study. Foot kinematics was measured using an Oxford Foot Model before and after fatigue-inducing exercises of the abductor hallucis and flexor hallucis brevis muscles. [Results] Following fatigue-inducing exercise, in both standing and gait, the MLA height did not decrease but slightly increased. In addition, the reduction of a rear foot eversion angle was noted. [Conclusion] Fatigue of the abductor hallucis and flexor hallucis brevis muscles did not cause a change associated with collapsing of the MLA during both standing and gait. This suggested that the MLA support force from these muscles would be compensated by other MLA support structures, such as extrinsic foot muscles.

収録刊行物

• Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ

  Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ 29 (6), 1001-1005, 2017

  理学療法科学学会

キーワード

• Intrinsic foot muscle
• Fatigue
• Foot kinematics

詳細情報

• CRID: 1390282679308816896
• NII論文ID: 130005690867
• DOI: 10.1589/jpts.29.1001
• ISSN: 21875626
• ISSN: 09155287
• Web Site: https://www.jstage.jst.go.jp/article/jpts/29/6/29_jpts-2017-045/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2018242993
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可