筆記型電腦輕薄方便攜帶的特性，在最近幾年成為了人們越來越普遍的工作設備。但是在追求方便的同時，因筆記型電腦在結構與技術上相較於一般桌上型電腦有著較多的限制，所以在操作筆記型電腦的同時也帶來了許多身體上的傷害，尤其是手部肌肉相關的病痛最為嚴重。有鑑於此，本論文研究將藉由人因工程研究方法來設計一款新型手部支撐器，期待此研究成果能讓使用者能夠安全舒適地操作筆記型電腦。

本研究主要分為五大部份，第一部分為相關文獻回顧與病理資料收集，找出使用筆記型電腦與人體工學相違背之處。第二部分則是實驗一，實驗一主要是要了解使用市面上現有產品與無使用手靠墊時，受測者的使用感受與身心反應，實驗一的內容包含了動作分析、快速上肢評分表、肌肉電位儀與主觀問卷量表等。第三部分則是將實驗一所得到的數據與資料加以統計與分析，最後得到結論並找出改良的方法，來做為設計新型筆記型電腦專用手部支撐器的基礎。第四部分則是設計出一款新型的手靠墊，然後進行內容和實驗一相同的實驗二，再將得到的實驗數據與原本的受測產品來做分析與比較。最後就是結論出本論文研究的成果，找出其中的貢獻性與需要改進的地方與限制。

由本實驗結果可以得知，手部支撐器的高度是最重要的影響重點之一，新型手部支撐器高度為35公厘，能夠較現有產品與無使用手靠墊時，有效降低包含肩部三角肌前側、上斜方肌、前臂尺側伸腕肌、伸指肌與橈側伸腕肌在內共五條肌肉的IEMG值，其中在從事筆記型電腦打字與操作觸控板時， 控制手指運動的伸指肌與控制背屈與掌屈動作的橈側伸腕肌的IEMG值為最大，也就是說這兩條肌肉得到肌肉傷害的機會最大，因此之後在從事相關研究與設計時，必須特別注意這兩條肌肉。

These years, laptop computers have become the most popular working device since it is light and thin to carry. But at the same time of approaching convenience, we found out that a notebook has more restricts on structures and techniques than a desk-top computer. Therefore, there are some problems caused by using laptops that we really need to consider, especially, the harm to the hand muscles. For the reasons mentioned above, this report is to design a brand-new hand supporter by researching the ergonomic engineering and we are expecting a safe and comfortable way to use a laptop computer.

The research is separated into five parts. The first one is to collect the relative records and medical information. This step aims to find the problems and conflicts on the laptops from the ergonomic point of view. The second is the Experiment 1. It helps us to realize the experiences and statistics of the testers when they are using laptop within or without an existing hand cushion. It includes move analysis, Rapid Upper Limb Assessment, EMG and subjective questionnaire etc. The third part is to sum up and analyze all the information and statistics we got from the Exp.1, and the conclusion will be the basic reference to improve the new hand supporter for laptop users. The fourth step is to design a hand support cushion by the references, and replace the existing cushion in the Exp.1 with this new designed one, and this is Exp.2. Above all, we compare the Exp.1 and Exp.2 and find the differences, improvements and narrow down the key points to design a better one.

Based on this experiment, the height of the hand supporter is the most important factor. This new supporter is 35mm high, in this case, when it is compared to the present products, it can more easily decrease the IEMG of the five muscles which are anterior-deltoid, upper-trapezius, extensor-carpi- ulnaris, extensor-digitorum-communis and extensor-carpi-radialis. Especially, extensor- digitorum-communis which is used to type and operate the control panel and extensor-carpi-radialis which controls palmar flexion and dorsiflexion gets the highest IEMG, and it means the harms of these two muscles are the biggest. As this result, designers need to concern these two muscles more when designing or researching this issue.

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