Effect of Work/Rest Patterns and Lumbar Support Belt on Data-Entry Task

工作／休息模式及腰背護帶對資料輸入作業影響之效應

10.29977/JCIIE.200801.0005

何正斌(Cheng-Pin Ho)

資料輸入作業 ； 工作／休息模式 ； 腰背護帶 ； 近點調節值NPA ； 閃光融合閾值CFF ； data-entry work ； work/rest pattern ； critical fusion frequency CFF ； near point accommodation NPA ； lumbar support belt

工業工程學刊

25卷1期（2008 / 01 / 01）

43 - 51

英文

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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