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Japanese

Analysis of Lateral Straddling Motion of the Bathtub by the Differences in the First Leg of Patients after THA Hirotaka Henmi 1 , Yuya Takakubo 2 , Miyuki Murakawa 1 , Katsuhiko Suzuki 3 , Michiaki Takagi 2 , Toshiaki Sato 3 1Department of Rehabilitation, Yamagata University Hospital 2Department of Orthopaedic Surgery, Faculty of Medicine, Yamagata University 3Yamagata Prefectural University of Health Sciences Keyword: 両脚支持期 , double stance phase , 人工股関節全置換術 , total hip arthroplasty , 日常生活動作 , activities of daily living , 3軸加速度計 , three-dimension accelerometer , 変形性股関節症 , hip osteoarthritis pp.714-722
Published Date 2023/8/18
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Abstract Objective:The movement of an elderly person involving stepping over a bathtub makes them prone to falls and requires caution. Gait analysis suggested that the risk of falling increases with time spent in supporting both legs. A similar relationship was expected for side-straddling motion. This study aims to analyze differences in the side-straddling movements between THA patients who did not fully recover their functional balance, mobility, or walking ability from the viewpoint of the ratio of time spent supporting both legs.

Methods:Eleven patients with hip osteoarthritis underwent initial unilateral THA via a posterior approach. Using a portable three-dimensional motion analyzer, we calculated the percentages of time spent supporting both legs while entering the bathtub, and exiting the bathtub with a handrail and examined the factors associated with percent of the time spent supporting both legs.

Results:The percentage of time spent supporting both legs when exiting the bathtub was significantly lesser when exiting using the nonoperative than the operated side. A negative correlation was found between the percentages of time spent supporting both legs. while exiting the bathtub, and the percentage of handrail load values.

Conclusion:The risk of falling may be reduced by using the nonoperative leg as the leading leg when exiting a bathtub. Use of handrails contributes to a reduction in fall risk.


Copyright © 2023, The Japanese Association of Rehabilitation Medicine. All rights reserved.

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電子版ISSN 印刷版ISSN 1881-3526 日本リハビリテーション医学会

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