Faculty of Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, 2628 CE Delft, The Netherlands.
Appl Ergon. 2012 May;43(3):548-53. doi: 10.1016/j.apergo.2011.08.010. Epub 2011 Sep 3.
This paper evaluates the effect of ergonomic factors on task performance and trainee posture during laparoscopic surgery training. Twenty subjects without laparoscopic experience were allotted into 2 groups. Group 1 was trained under the optimal ergonomic simulation setting according to current ergonomic guidelines (Condition A). Group 2 was trained under non-optimal ergonomic simulation setting that can often be observed during training in a skills lab (Condition B). Posture analysis showed that the subjects held a much more neutral posture under Condition A than under Condition B (p<0.001). The subjects had less joint excursion and experienced less discomfort in their neck, shoulders, and arms under Condition A. Significant difference in task performance between Conditions A and B (p<0.05) was found. This study shows that the optimal ergonomic simulation setting leads to better task performance. In addition, no significant differences of task performance, for Groups 1 and 2 using the same test setting were found. However, better performance was observed for Group 1. It can be concluded that the optimal and non-optimal training setting have different learning effects on trainees' skill learning.
本文评估了人因工程因素对腹腔镜手术训练中任务绩效和学员姿势的影响。20 名没有腹腔镜经验的受试者被分配到 2 组。第 1 组根据当前人因工程指南在最佳人因工程模拟设置下进行训练（条件 A）。第 2 组在技能实验室培训中经常观察到的非最佳人因工程模拟设置下进行训练（条件 B）。姿势分析表明，与条件 B 相比，条件 A 下学员的姿势更为中立（p<0.001）。在条件 A 下，学员的关节活动度较小，颈部、肩部和手臂的不适感也较小。条件 A 和 B 之间的任务绩效存在显著差异（p<0.05）。本研究表明，最佳人因工程模拟设置可提高任务绩效。此外，在使用相同测试设置的情况下，第 1 组和第 2 组之间的任务绩效没有显著差异。然而，第 1 组的表现更好。可以得出结论，最佳和非最佳训练设置对学员的技能学习有不同的学习效果。
