Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences/Medical School, Nagoya, Japan.
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
J Occup Health. 2022 Jan;64(1):e12355. doi: 10.1002/1348-9585.12355.
Endoscopists often suffer from musculoskeletal disorders due to posture-specific workloads imposed by precise maneuvering or long procedural duration. An ergonomic motion tracking system for endoscopy suite (EMTES) was developed using Azure Kinect sensors to evaluate the occlusion, accuracy, and precision, focusing mainly on upper and lower limb movements.
Three healthy male participants pointed the prescribed points for 5 s on the designated work envelopes and their coordinates were measured. The mean occlusion rate (%) of the 32 motion tracking landmarks, standard deviation (SD) of distance and orientation, and partial regression coefficient (β) and R model fit for accuracy were calculated using the time series of coordinates data of the upper/lower limb movements.
The mean occlusion rate was 5.2 ± 10.6% and 1.6 ± 1.4% for upper and lower limb movements, respectively. Of the 32 landmarks, 28 (87.5%) had occlusion rates of 10% or less. The mean SDs of 4.2 mm for distance and 1.2° for orientation were found. Most of the R values were over 0.9. In the case of right upper/lower limb measurement for orientation, β coefficients ranged from 0.82 to 1.36.
EMTES is reliable in calculating occlusion, precision, and accuracy for practical motion-tracking measurements in endoscopists.
由于精确操作或手术过程时间长等特定姿势的工作量，内窥镜医师经常患有肌肉骨骼疾病。我们开发了一种用于内窥镜室的人体工程学运动跟踪系统（EMTES），该系统使用 Azure Kinect 传感器来评估遮挡、准确性和精度，主要关注上肢和下肢运动。
3 名健康男性参与者在指定工作范围内分别用 5 秒指向规定的点，测量其坐标。使用上肢/下肢运动坐标数据的时间序列计算 32 个运动跟踪标记点的平均遮挡率（%）、距离和方向的标准差（SD）以及准确性的偏回归系数（β）和 R 模型拟合度。
上肢和下肢运动的平均遮挡率分别为 5.2±10.6%和 1.6±1.4%。32 个标记点中，有 28 个（87.5%）的遮挡率低于 10%。距离的平均 SD 为 4.2mm，方向的平均 SD 为 1.2°。大多数 R 值均高于 0.9。对于右侧上肢/下肢的方向测量，β系数范围从 0.82 到 1.36。
EMTES 在计算内窥镜医师实际运动跟踪测量中的遮挡、精度和准确性方面是可靠的。
