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https://doi.org/10.24546/00098304
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2024-04-29
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00098304 (fulltext)
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421 KB
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メタデータID
00098304
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open access
出版タイプ
Version of Record
タイトル
Different Myoelectric Behavior of the Erector Spinae in Flexion and Reextension During Trunk Foward Bending
著者
Hirata, Soichiro ; Saura, Ryuichi ; Ishikawa, Hitoshi ; Tanase, Yoshihiro ; Mizuno, Kosaku
著者名
Hirata, Soichiro
著者名
Saura, Ryuichi
著者名
Ishikawa, Hitoshi
著者名
Tanase, Yoshihiro
著者名
Mizuno, Kosaku
収録物名
Bulletin of health sciences Kobe
巻(号)
15
ページ
15-19
出版者
Graduate School of Health Sciences, Kobe University
刊行日
1999-12-26
公開日
2006-09-11
注記
本文ファイルは、国立情報学研究所CiNiiより提供されたものです。
抄録
Trunk forward bending plays a role in development of low back pain. However, a relationship between the bending kinematics and electromyographic (EMG) activity of the erector spinae is not well understood. We studied trunk flexion and reextension during this motion to determine EMG activity of these muscles in relation to kinematics by using surface EMG and an electromagnetic tracking device in 15 healthy young adults. The EMG profile exhibited two asymmetric bursts interrupted by a period of a low level that occurred near full flexion. Mean peak amplitude of reextension was larger by 70% than that of flexion. Angular orientation of T 12 and S 2 segments showed that the EMG reached to the peak at midrange of flexion with a few degrees of lumbar lordosis. In contrast, the peak EMG in reextension was attained immediately after lumbar extension was initiated in a more flexed position with, presumably, a high degree of bending moment. These results of the angle-EMG relationship of reextension, with a sudden increase of the high EMG activity of the muscles, may offer a possibility that the reextension position is at a risk of back injuries such as lumbar disc herniation.
キーワード
Erector spinae
Electromyography
Lumbar spine
Kinesiology
カテゴリ
Bulletin of health sciences Kobe
>
15号(1999-12-26)
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資源タイプ
departmental bulletin paper
言語
English (英語)
ISSN
1346-8707
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NCID
AA11316362
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関連情報
NAID
110004599669
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