REALITY AUGMENTED GLASSES IMPROVES ERGONOMICS IN GASTROINTESTINAL ENDOSCOPY

초록

Background and Aims Endoscopists are at increased risk of musculoskeletal injuries (MSI). Poor endoscopic posture is known to cause MSI. In this study, we systematically evaluated the ergonomic benefits of medical augmented reality glasses (ARG) in gastrointestinal endoscopy. Methods Screening gastroscopies were performed with and without ARG. The subjective experience was evaluated using a questionnaire-based NASA-Task Load Index (NASA-TLX). Biomechanical loads during endoscopy were captured using electromyography (EMG) sensors and motion tracking sensors. Perceived discomfort, muscle activity and body position were compared between ARG wearing group and non- ARG group. Results Five endoscopists performed total of 200 upper gastrointestinal endoscopies; 100 procedures in ARG group and 100 procedures in non-ARG group. Mean NASA-TLX scores of the participants were lower when ARG was used compared to those with conventional monitor. ARG wearing group exhibited improvements in physical demand, effort, and frustration scores compared to non ARG group. Muscle activation was significantly lower in ARG group compared to non ARG group in sternocleidomastoid and trapezius muscles. Motion analysis showed a significant reduction in the proportion of high risk positions of the neck and torso in the ARG group. Conclusions ARG was effective in improving the ergonomics of the examiner by correcting the bad posture of neck and torso during endoscopy. It reduces muscle fatigue and significantly corrects high risk posture that causes pain during endoscopy. The use of ARG in gastrointestinal endoscopy is expected to improve ergonomics for endoscopists.