2016 Fiscal Year Final Research Report
Detecting the role of neuromuscular and anatomical function of the foot intrinsic and extrinsic muscles for preventing the fall
| Project/Area Number |
26350825
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Sports science
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
Isaka Tadao 立命館大学, スポーツ健康科学部, 教授 (30247811)
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| Research Collaborator |
Kulig Kornelia University of Southern California, Dept. Biokensiology and Physical Therapy, Professor
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 足趾筋力 / 筋電図 / MRI / 足内在筋・外在筋 / バランス能力 |
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| Outline of Final Research Achievements |
The toe flexor muscle strength (TFS) is correlated with the size of the plantar intrinsic and extrinsic muscles. During controlled external loading, greater arch deformation was significantly associated with increased muscle activation of both tibialis posterior and plantar intrinsic muscles. The weakness of TFS would impair the function of the foot and ankle and cause a pathological deformation onto the toe and/or foot.
In sedentary subjects, the relationship between sprint time, vertical jump height, and TFS are significant, which indicates the importance of the plantar intrinsic muscles. While, the ability to change direction among athletes is slightly affected by TFS. It suggests that the contribution of the TFS is less important than the strength on ankle, knee and hip joints.
Furthermore, TFS is important for balance or postural control for elderly, indicating that decreased TFS might be the risk of falls for elderly.
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| Free Research Field |
バイオメカニクス
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