本研究旨在探討在資料輸入作業中採行不同的工作/休息模式和有無穿戴腰背護帶對此作業的影響,其中的工作/休息模式分為固定式、分段固定式、自主式和放任式四種。每種模式皆進行2小時的資料輸入作業,前三種模式總共休息8分鐘,而放任式則不限制休息時間的長短及頻率。受試者共11位,包括6位男性和5 位女性。衡量效標則包括主觀評比、近點調節值(NPA)、閃光融合閾值(CFF)和作業績效。結果顯示,受試者在主觀評比上以自主式和放任式最佳,而固定式最差。在作業績效方面,以放任式休息模式最佳,但在客觀眼睛疲勞數據(CFF差異值、NPA差異值)顯示,此模式卻最易造成疲勞。在有無穿戴腰背護帶方面,受試者在工作中穿戴腰背護帶會增加身體上的負擔。
This study explores the effects of different work/rest patterns and a lumbar support belt on data-entry work. Four different work/rest patterns-fixed, separated fixed, self-managed rest and relaxed pattern-were investigated, each pattern involving a total of 2-h typing. The first three patterns had 8 min of rest, while the rest period and frequency of the relaxed pattern were not limited. There were 11 subjects: six males and five females. Evaluation criteria were subjective assessments, near point accommodation (NPA), critical fusion frequency (CFF) and work performance. The results show that the best work/rest patterns are self-managed and relaxed resting in RPE, while fixed resting is the worst. As regards work performance, the best result is the relaxed pattern; however, it is the worst pattern when using NPA and CFF as response variables. With lumbar support belts, subjects thought that wearing them during typing restricted body movement.
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