Morphological changes of lower leg muscles according to ankle joint position during sitting evaluated by gravity mri in young females

• Miyachi Ryo

  Department of Rehabilitation, Ishikawa-ken Saiseikai Kanazawa Hospital, Japan Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan

• Yamazaki Toshiaki

  Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan

• Ohno Naoki

  Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan

• Miyati Tosiaki

  Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University: 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan

抄録

[Purpose] This study aimed to clarify whether the morphological changes of the lower leg muscle occur equally in the longitudinal direction of the muscle according to changes in ankle joint position during sitting. [Participants and Methods] The participants were 15 healthy young females whose dominant lower legs were analyzed. The participants sat with the lower leg vertical to the floor with a neutral, dorsiflexed, or plantarflexed ankle position. Images were obtained from the fibular head from 290 mm distal using gravity magnetic resonance imaging. The muscle cross-sectional areas of the soleus, medial and lateral heads of the gastrocnemius, and anterior tibialis were measured. [Results] The muscle cross-sectional area of the soleus at the 1/4 proximal muscle belly in the plantarflexed position was greater than those in the other positions. The 1/4 distal part in the plantarflexed position was smaller than those in the other positions. The muscle cross-sectional area of the gastrocnemius at the 1/4 distal part in the plantarflexed position was smaller than that in the dorsiflexed position. In contrast, the muscle cross-sectional area of the tibialis anterior at the 1/4 proximal part in the dorsiflexed position was greater than those in the other positions, while that at the 1/4 distal part in the dorsiflexed position was smaller than that in the plantarflexed position. [Conclusion] In the sitting position, the morphological changes of the lower leg muscle according to changes in ankle joint position are not uniform in the longitudinal muscle direction.

収録刊行物

• Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ

  Ｊ　Ｐｈｙｓ　Ｔｈｅｒ　Ｓｃｉ 31 (6), 488-492, 2019

  理学療法科学学会

キーワード

• Gravity MRI
• Longitudinal morphological change
• Lower leg muscle

詳細情報

• CRID: 1390282763119611648
• NII論文ID: 130007657437
• DOI: 10.1589/jpts.31.488
• ISSN: 21875626
• ISSN: 09155287
• Web Site: https://www.jstage.jst.go.jp/article/jpts/31/6/31_jpts-2018-445/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2020049163
• 本文言語コード: en
• データソース種別:
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  • CiNii Articles
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