Initial Mechanism of Shear in Comfortable Sitting on a Chair-Examination by the Time Element of Displacement of Seat Pressure Distribution-
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- KOBARA Kenichi
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
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- EGUCHI Atsuko
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
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- FUJITA Daisuke
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
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- NISHIMOTO Tetsuya
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
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- ISHIURA Yuichi
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
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- WATANABE Susumu
- Department of Rehabilitation, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare
Bibliographic Information
- Other Title
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- 椅子上安楽座位におけるずれ力発生のメカニズム―座圧分布変位の時間的要素による検証―
- イスジョウ アンラク ザイ ニ オケル ズレリョク ハッセイ ノ メカニズム ザアツ ブンプ ヘンイ ノ ジカンテキ ヨウソ ニ ヨル ケンショウ
- -Examination by the Time Element of Displacement of Seat Pressure Distribution-
- ─座圧分布変位の時間的要素による検証─
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Abstract
The purpose of this study was to verify the initial mechanism of shear force in comfortable sitting position on chair. With 10 healthy men as subjects, we measured the displacement width of sitting pressure distribution with trunk backward inclining and the time difference from contact with the backrest until the beginning of the shift of the sitting pressure center position under two conditions of "with" and "without" backrest using a pressure distribution meter. The results show that the sitting pressure center position gradually moves backwards with trunk backward inclining, and in the case of "with" backrest turned forward just after the inclining (0.2 ± 0.1 sec). The displacement width was a shift forward from the base sitting position of 0.5 ± 1.2 cm "with" backrest and a shift backward of 2.0 ± 1.1 cm "without" backrest, showing a significant difference between them (p<0.01). These results suggest the intervention of backrest is indispensable in the initiation of shear force.<br>
Journal
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- Rigakuryoho Kagaku
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Rigakuryoho Kagaku 22 (2), 185-188, 2007
The Society of Physical Therapy Science
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Details 詳細情報について
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- CRID
- 1390001204644190336
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- NII Article ID
- 10019563950
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- NII Book ID
- AN10472896
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- ISSN
- 24342807
- 13411667
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- NDL BIB ID
- 8861612
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed