Generation of Range of Motion Limitation in Short Immobilization

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  • 関節可動域制限の発生時期に関する検討
  • カンセツ カドウイキ セイゲン ノ ハッセイ ジキ ニ カンスル ケントウ

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Abstract

The purpose of this study was to determine the shortest immovable period for a range of motion limitation to occur. Fifteen female Wister rats were divided into three groups: immobilization for two days, three days and four days. The joint angle was measured on the first and last days of the experiment. Significant differences were not found for the first day for each group. However, significant differences were found between the three groups for the last day, as compared with the first day. In addition, significant differences were found between immobilization for two days and three days and for three days and four days. We found that a change took place in the joint angle even after immobilization for just two days. We believe that morphologic, histologic, and biochemical changes caused the limitation. At which time and how each factor affects the change are subjects for further research.

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