Higher Mental Workload is Associated With Poorer Laparoscopic Performance as Measured by the NASA-TLX Tool

被引:254
作者
Yurko, Yuliya Y. [1 ]
Scerbo, Mark W. [2 ]
Prabhu, Ajita S. [1 ]
Acker, Christina E. [3 ]
Stefanidis, Dimitrios [1 ,3 ]
机构
[1] Carolinas Med Ctr, Div Gastrointestinal & Minimally Invas Surg, Charlotte, NC 28203 USA
[2] Old Dominion Univ, Norfolk, VA USA
[3] Carolinas Coll Hlth Sci, Carolinas Simulat Ctr, Charlotte, NC USA
来源
SIMULATION IN HEALTHCARE-JOURNAL OF THE SOCIETY FOR SIMULATION IN HEALTHCARE | 2010年 / 5卷 / 05期
关键词
NASA-TLX; Workload; FLS; Simulator; OPERATING-ROOM; VIRTUAL-REALITY; TASK; STRESS; MANAGEMENT; AUTOMATION; SKILLS;
D O I
10.1097/SIH.0b013e3181e3f329
中图分类号
R19 [保健组织与事业(卫生事业管理)];
学科分类号
摘要
Introduction: Increased workload during task performance may increase fatigue and facilitate errors. The National Aeronautics and Space Administration-Task Load Index (NASA-TLX) is a previously validated tool for workload self-assessment. We assessed the relationship of workload and performance during simulator training on a complex laparoscopic task. Methods: NASA-TLX workload data from three separate trials were analyzed. All participants were novices (n = 28), followed the same curriculum on the fundamentals of laparoscopic surgery suturing model, and were tested in the animal operating room (OR) on a Nissen fundoplication model after training. Performance and workload scores were recorded at baseline, after proficiency achievement, and during the test. Performance, NASA-TLX scores, and inadvertent injuries during the test were analyzed and compared. Results: Workload scores declined during training and mirrored performance changes. NASA-TLX scores correlated significantly with performance scores (r = -0.5, P < 0.001). Participants with higher workload scores caused more inadvertent injuries to adjacent structures in the OR (r = 0.38, P < 0.05). Increased mental and physical workload scores at baseline correlated with higher workload scores in the OR (r = 0.52-0.82; P < 0.05) and more inadvertent injuries (r = 0.52, P < 0.01). Conclusions: Increased workload is associated with inferior task performance and higher likelihood of errors. The NASA-TLX questionnaire accurately reflects workload changes during simulator training and may identify individuals more likely to experience high workload and more prone to errors during skill transfer to the clinical environment. (Sim Healthcare 5:267-271, 2010)
引用
收藏
页码:267 / 271
页数:5
相关论文
共 26 条
[1]  
[Anonymous], 2000, ERR IS HUMAN BUILDIN
[2]  
Carswell C Melody, 2005, Surg Innov, V12, P80, DOI 10.1177/155335060501200112
[3]   Development of a model for training and evaluation of laparoscopic skills [J].
Derossis, AM ;
Fried, GM ;
Abrahamowicz, M ;
Sigman, HH ;
Barkun, JS ;
Meakins, JL .
AMERICAN JOURNAL OF SURGERY, 1998, 175 (06) :482-487
[4]   Level of automation effects on performance, situation awareness and workload in a dynamic control task [J].
Endsley, MR ;
Kaber, DB .
ERGONOMICS, 1999, 42 (03) :462-492
[5]  
Hart SG, 1987, HUMAN MENTAL WORKLOA
[6]  
KLEIN MI, 2005, P HUM FACT ERG SOC 4, P1014
[7]   Simulator training for laparoscopic suturing using performance goals translates to the operating room [J].
Korndorffer, JR ;
Dunne, JB ;
Sierra, R ;
Stefanidis, D ;
Touchard, CL ;
Scott, DJ .
JOURNAL OF THE AMERICAN COLLEGE OF SURGEONS, 2005, 201 (01) :23-29
[8]   Tracking workload in the emergency department [J].
Levin, Scott ;
France, Daniel J. ;
Hemphill, Robin ;
Jones, Ian ;
Chen, Kong Y. ;
Rickard, Dorsey ;
Makowski, Renee ;
Aronsky, Dominik .
HUMAN FACTORS, 2006, 48 (03) :526-539
[9]   Automation in future air traffic management: Effects of decision aid reliability on controller performance and mental workload [J].
Metzger, U ;
Parasuraman, R .
HUMAN FACTORS, 2005, 47 (01) :35-49
[10]  
Munch-Petersen Helga Richert, 2008, Ugeskr Laeger, V170, P624