可輔助下樓梯之穿戴式裝置開發與評估

林修翰

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可辅助下楼梯之穿戴式装置开发与评估

Development and evaluation of a wearable device for stair descending

林修翰 , 硕士　　导师：杨秉祥　　

繁体中文

辅助装置；下楼梯；膝关节辅具； Assistive device ； Stair negotiation ； Knee orthosis

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摘要 │ 参考文献 (41) │ 国际计量

摘要〈TOP〉

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The society in Taiwan is aged, and the life expectancy increases year by year. Studies have shown that the aging process would decrease the muscle strength of older people. Stair negotiation is hazardous for older people, and a portion of falling accidents were reported to occur on stairs especially while descending. By comparing level walking, stair negotiation is one of the daily demands and needs capable physical ability. Existing assistive devices for stair climbing, such as stair-lifting wheelchairs are either bulky or inconvenient to be applied in many environments. Other powered wearable assistive devices give assist while walking but not stair descending, and the weight and duration are restricted by motors and batteries. Therefore, the aim of this study is to develop a non-powered wearable device which can reduce the muscle demand on lower limbs for stair descending and to evaluate its efficacy. By considering the knee movement of stair descending and anthropometry data, we designed an assistive mechanism which can give support while knee flexion during descending. Four older adults (50 ~ 64 yrs.) and five younger adults (22 ~ 25 yrs.) were asked to perform stair negotiation to evaluate the efficacy of device. We collected the ground reaction forces and the electromyography of quadriceps and biceps simultaneously. Our results showed that the maximum ground reaction force reduced 5 ~ 7 % by wearing our device. Besides, older adults’ vastus lateralis vs biceps femoris Co-activation decreased 11 % that meant our device could increase the knee joint stability; the vastus lateralis mean muscle activity reduced 10 % during wearing device which indicated that our device could help to reduce muscle demand during single leg supporting.

参考文献 ( 41 ) 〈TOP〉

Davis Priya Chantal, Bach, Timothy Michael, & Pereira, Darren Mark. (2010). The effect of stance control orthoses on gait characteristics and energy expenditure in knee-ankle-foot orthosis users. Prosthetics and Orthotics International, 34(2), 206-215.
连结：
De Luca C. J., & Mambrito, B. . (1987). Voluntary control of motor units in human antagonist muscles: coactivation and reciprocal activation. Journal of Neurophysiology, 58(3), 525-542.
连结：
Hortobágyi Tibor, & DeVita, Paul. (2000). Muscle pre-and coactivity during downward stepping are associated with leg stiffness in aging. Journal of Electromyography and Kinesiology, 10(2), 117-126.
连结：
Hortobágyi Tibor, Mizelle, Chris, Beam, Stacey, & DeVita, Paul. (2003). Old adults perform activities of daily living near their maximal capabilities. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 58(5), M453-M460.
连结：
Hsu M. J., Wei, S. H., Yu, Y. H., & Chang, Y. J. (2007). Leg stiffness and electromyography of knee extensors/flexors: Comparison between older and younger adults during stair descent. Journal of Rehabilitation Research and Development, 44(3), 429-436.
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使用DOI作为永久连结

引用含有DOI的文献

DOI可强化引用精确性、增强学术圈连结，并给予使用者跨平台的良好使用经验，目前在全世界已有超过五千万个对象申请DOI。 如想对DOI的使用与概念有进一步了解，请参考 （ ） 。

DOI可强化引用精确性、增强学术圈连结，并给予使用者跨平台的良好使用经验，目前在全世界已有超过五千万个对象申请DOI。如想对DOI的使用与概念有进一步了解，请参考（）。