| Project/Area Number |
09680125
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
体育学
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| Research Institution | KOKUSHIKAN UNVERSITY |
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Principal Investigator |
NAITO Yuko KOKUSHIKAN UNIVERSITY,FACULTY OF PHYSICAL EDUCATION,ASSOCIATE PROFESSOR, 体育学部, 助教授 (00147258)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAYANAGI Atsushi TOKYO DENTAL COLLEGE,DEPT.HYGIENE,LECTURER, 歯学部, 講師
MATSUMOTO Takaaki KOKUSHIKAN UNIVERSITY,FACULTY OF PHYSICAL EDUCATlON,ASSOCIATE PROFESSOR, 体育学部, 助教授 (10245681)
ICHIKAWA Kouichi KOKUSHIKAN UNIVERSITY,FACULTY OF PHYSICAL EDUCATION,PROFESSOR, 体育学部, 教授 (90119066)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | sports / stomatognathic system / bone mineral density / biting force / mouth-protector / muscle strength |
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| Research Abstract |
In this study, we have investigated the relationship between stomatognathic system(including dental occlusal function) and systemic condition(including bone mineral density), and also the usefulness of mouth-protector for elevation of the muscle strength. Nineteen male athletes were participated as volunteer subjects. The following factors of the stomatognathic system were measured ; biting force, biting force valance, gonial angle, and corpus mandibular length. To analyze multiple correlation, there were significant positive correlation (p<O.O1) between corpus mandibular length and bone mineral density, but no correlation between bone mineral density and biting force were observed. The mean occlusal force level after wearing the fitted mouth-protector was greater than before. Significant differences were found between with and without mouth protectors in soleus H-reflex. These data suggest that 1) stomatognathic system (especially corpus mandibular length) should be considered in bone mineral density ; 2) the isometric muscle strength would be increased by biting with the fitted mouth-protector.
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