Back to Search Start Over

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

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

Authors :
Akira Otsuka
Naohisa Hirata
Sadaaki Oki
Shusaku Kanai
Kazunori Okamura
Norikatsu Idemoto
Satoshi Tanaka
Yoshiaki Sakamura
Hiroki Wada
Source :
Journal of Physical Therapy Science
Publication Year :
2017
Publisher :
Society of Physical Therapy Science, 2017.

Abstract

[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.

Details

ISSN :
21875626 and 09155287
Volume :
29
Database :
OpenAIRE
Journal :
Journal of Physical Therapy Science
Accession number :
edsair.doi.dedup.....9ddf6721092ecbe4dd15603b328a8cbd
Full Text :
https://doi.org/10.1589/jpts.29.1001