晃动环境下交互设备对操作绩效和上肢肌肉活动的影响研究

Effects of Interactive Devices on Operational Performance and Upper Limb Muscle Activity in Vibration Environment

目的研究晃动环境下人机交互设备的操作绩效和上肢肌肉活动。方法采用两因子组内设计的人因学实验,测试了15名受试者在三种晃动条件下(静止,轻度晃动,中度晃动)使用多种交互设备完成基础人机界面交互任务的操作绩效和上肢肌肉活动,采用重复测量的方差分析处理实验数据。结果随着晃动程度的增加,操作绩效显著降低,三角肌和上斜方肌的肌肉活动水平更高。交互设备对任务操作绩效和主观感知疲劳度有显著影响,晃动环境和交互设备有显著交互作用。结论交互设备的使用和配置应尽可能控制设备的晃动程度。

Objective The operation performance and upper limb muscle activity of human-computer interaction devices under vibration environment were studied.Methods A two-factor within-subjects design was employed in this study,where 15 participants performed basic human-computer interaction tasks with four different interaction devices under three vibration conditions(static,low vibration and moderate vibration).Data on the task performance and upper limb muscle activity were recorded.Repeated measure analysis of variance analyses were used for data analysis.Results The results showed that the vibration environment significantly reduced operational performance and led to higher levels of muscle activity in the deltoideus triangularis and upper trapezius muscle.Interaction device had a significant influence on task operation performance,and perceived fatigue.There was a significant interaction effect between vibration environment and interaction device.Conclusion The degree of shaking of the equipment should be controlled as much as possible.