替代视频显示器对显微外科技能任务期间的姿势、感知努力程度和操作表现的影响。
Effect of alternative video displays on postures, perceived effort, and performance during microsurgery skill tasks.
作者信息
Yu Denny, Green Cooper, Kasten Steven J, Sackllah Michael E, Armstrong Thomas J
机构信息
Center for Ergonomics, University of Michigan, 1205 Beal Ave, Ann Arbor, MI 48109, USA.
Department of Surgery, University of Michigan, 1500 E. Medical Center Dr. SPC 5343, Ann Arbor, MI 48109-5343, USA.
出版信息
Appl Ergon. 2016 Mar;53 Pt A(Pt A):281-9. doi: 10.1016/j.apergo.2015.10.016. Epub 2015 Nov 14.
Physical work demands and posture constraint from operating microscopes may adversely affect microsurgeon health and performance. Alternative video displays were developed to reduce posture constraints. Their effects on postures, perceived efforts, and performance were compared with the microscope. Sixteen participants performed microsurgery skill tasks using both stereo and non-stereoscopic microscopes and video displays. Results showed that neck angles were 9-13° more neutral and shoulder flexion were 9-10° more elevated on the video display than the microscope. Time observed in neck extension was higher (30% vs. 17%) and neck movements were 3x more frequent on the video display than microscopes. Ratings of perceived efforts did not differ among displays, but usability ratings were better on the microscope than the video display. Performance times on the video displays were 66-110% slower than microscopes. Although postures improved, further research is needed to improve task performance on video displays.
操作显微镜带来的体力工作需求和姿势限制可能会对显微外科医生的健康和操作表现产生不利影响。为减少姿势限制，人们开发了替代视频显示器。将其与显微镜在姿势、主观感受的努力程度以及操作表现方面的效果进行了比较。16名参与者使用立体显微镜和非立体显微镜以及视频显示器进行显微外科技能任务。结果显示，与显微镜相比，使用视频显示器时颈部角度更中立9 - 13°，肩部屈曲抬高9 - 10°。视频显示器上观察到的颈部伸展时间更高（30%对17%），颈部运动频率是显微镜的3倍。主观感受的努力程度在不同显示器之间没有差异，但显微镜的可用性评分高于视频显示器。视频显示器上的操作时间比显微镜慢66 - 110%。尽管姿势有所改善，但仍需要进一步研究以提高视频显示器上的任务表现。
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