医疗卫生装备2018，Vol.39Issue(1)：19-22,57,5.DOI:10.7687/j.issn1003-8868.2018.01.019
新型视屏作业上肢疲劳检测系统设计与实验验证
Design of VDT operation related upper extremities fatigue detection system and experimental verification
韩承 1张万超 1李树新 1唐慧晶 1刘保峰 1张健1
作者信息
- 1. 天津市疾病预防控制中心,天津300011
- 折叠
摘要
Abstract
Objective To design a VDT operation related upper extremities fatigue detection system using keying duration (KD)as an indicator of fatigue and to execute experimental verification.Methods The system included the software part able to calculate,compare and analyze KD and hardware part able to support normal VDT operations.Subjects finished typing task under controlled condition while the system was running. The flexor digitorum superficialis (FDS), extensor digitorum communis(EDC),extensor carpi radialis(ECR),extensor carpi ulnaris(ECU)muscle fatigue were retrieved by sEMG method and standardized questionnaire. Results As the number of keystrokes increased, KD shortened by 1.3%, FDS MVC% dropped by 22.9%,and EDC MVC% decreased by 47.9%.The perceived level of typing fatigue also increased.Conclusion Results revealed KD's change with fatigue,showing the possibility of using KD as an indicator of fatigue and validating the feasibility and effectiveness of the system design.关键词
视屏作业/键盘/疲劳/肌肉骨骼损伤/工效学Key words
visual display terminals operation/keyboard/fatigue/musculoskeletal injury/ergonomics分类
医药卫生引用本文复制引用
韩承,张万超,李树新,唐慧晶,刘保峰,张健..新型视屏作业上肢疲劳检测系统设计与实验验证[J].医疗卫生装备,2018,39(1):19-22,57,5.
