Publication Date

2017-05-09

Availability

Open access

Embargo Period

2017-05-09

Degree Type

Dissertation

Degree Name

Doctor of Philosophy (PHD)

Department

Ergonomics (Engineering)

Date of Defense

2017-04-07

First Committee Member

Shihab Asfour

Second Committee Member

Francesco Travascio

Third Committee Member

Arzu Onar-Thomas

Fourth Committee Member

Moataz Eltoukhy

Fifth Committee Member

Mohamed Fahmy

Abstract

Laparoscopic training with visual force feedback can lead to immediate improvements in force moderation. However, the long-term retention of this kind of learning and its potential decay are yet unclear. A laparoscopic resection task and force sensing apparatus were designed to assess the benefits of visual force feedback training. Idealized force parameters for both pushing and pulling forces were derived from a pilot study with experienced UM laparoscopic surgeons. A randomized longitudinal experiment was conducted with students with no experience in laparoscopy. The results showed that visual force feedback improved on certain aspects of force moderation, such as tapering of extreme force values. No significant decay of applied force learning was found during the first month after training. It is essential to account for differences in aptitude between individuals in this type of longitudinal research. This study shows how an inexpensive force measuring system can be used with an FLS Trainer System after some retrofitting. Surgical instructors can develop their own tasks and adjust force feedback levels accordingly.

Keywords

laparoscopy training; visual force feedback; force moderation; retention of learning

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