Changes in Disuse Atrophy of the Rat Soleus Muscle due to Intermittent Stretching Exercise

  • KUBO Azusa
    Department of Rehabilitation, Kanazawa University Hospital
  • UENO Katsuya
    Department of Rehabilitation, Yawata Medical Center
  • MIYACHI Ryo
    Department of Rehabilitation, Saiseikai Kanazawa Hospital
  • YAMAZAKI Toshiaki
    Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University

Bibliographic Information

Other Title
  • 間歇的伸張運動によるラットヒラメ筋廃用性萎縮の変化
  • 間歇的伸張運動によるラットヒラメ筋廃用性萎縮の変化 : 筋萎縮抑制効果の経時的変化に関して
  • カンケツテキ シンチョウ ウンドウ ニ ヨル ラットヒラメキンハイヨウセイ イシュク ノ ヘンカ : キン イシュク ヨクセイ コウカ ノ ケイジテキ ヘンカ ニ カンシテ
  • —筋萎縮抑制効果の経時的変化に関して—

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Abstract

[Purpose] The purpose of this study was to investigate the effects of intermittent stretching exercise on disuse atrophy of the rat soleus muscle with respect to site and the change over time in the inhibitory effect on atrophy. [Subjects and Methods] Eighty-three 8-week-old male Wistar rats were divided into 3 groups: a control group which was reared under standard conditions (C0/3/7/10/14), a hind-limb suspension group (HS3/7/10/14), and a stretching exercise group (ST3/7/10/14). After the completion of each experimental period the soleus muscle was cut into proximal, middle, and distal samples, which were stained with hematoxylin and eosin, and the cross-sectional area (CSA) was measured. [Results] The CSA of ST14 was significantly greater than that of HS14. The reduction rate of the CSA in the middle and distal regions of ST14 was small compared to that of HS14. [Conclusion] The results suggest that disuse atrophy is altered over time by stretching exercise, and that there are differences in effect among the longitudinal sites of the soleus muscle.

Journal

  • Rigakuryoho Kagaku

    Rigakuryoho Kagaku 32 (2), 165-170, 2017

    The Society of Physical Therapy Science

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