不同作業面高度及不同銲接角度對銲接作業人員肌肉骨骼負荷之評估

本研究探討不同作業面高度和不同銲接工件角度對銲接作業人員尺側腕屈肌、肱二頭肌、頸伸肌和上斜方肌的主客觀影響，以及問卷調查分析、KIM-ABP檢核表評估。50份廠內銲接作業人員問卷分析結果，於不同工作臺高度、工作椅高度與上肢部位疼痛有顯著差異（p<0.05），分別於頸部、肩部、手掌皆有不適情形發生。本研究總共有10名男性受測者參與實驗，所有受試者皆無肌肉骨骼疾病和心血管問題的病史。在實驗開始前，受測者簽署同意書及進行實驗說明流程講解，在不同工作檯高度(50、80、110cm)搭配不同銲件角度(0°、45°、90°)下，每人共9組實驗，總實驗長為1小時，使用Borg CR-10主觀疲勞程度量表、EMG量測生理肌肉施力情形及KIM-ABP檢核表評估銲接作業，研究結果表明，上斜方肌在不同高度有顯著差異（p<0.05），建議銲接操作人員提高工作台高度和角度，以減輕肌肉骨骼負荷，減少職業病的發生，另建議於人因檢核表之選用，可以同時使用KIM-MHO、KIM-ABP檢核表進行評估。

This study investigated the subjective and objective effects of different heights and different angles of welding parts on the flexor carpi ulnaris, biceps brachii, cervical extensor and upper trapezius of welding workers, questionnaire survey, and KIM-ABP musculoskeletal discomfort assessment. The results of the questionnaire analysis of 50 welding workers in the factory showed that there were significant differences in the height of the workbench, the height of the work chair and the pain in the upper limbs (p<0.05), and discomfort occurred in the neck, shoulders, and palms respectively. Ten paid male subjects participated in this study. All subjects were in good health and had no history of musculoskeletal and cardiovascular problems. Before participation, the subjects were informed of the aims of the study, and they all participated voluntarily. An experiment was performed with a two-factor design with repeated measurements. Workbench heights (3 levels) and welding angles (3 levels), were the fixed factors. Subjects were treated as a random factor. In the experiment, each subject performed welding task in the field, each time for 5 minutes. Using Borg CR-10 Subjective Fatigue Scale, EMG Measurement of Physiological Muscle Force, and KIM-ABP Checklist to Assess Welding Work .The research results show that the upper trapezius muscle differs significantly (p<0.05) at different heights. It is suggested that the welding operators should improve the table height and the angle to reduce the musculoskeletal load and reduce the occurrence of occupational diseases.