Waseda University/ErgoSeating Co., Ltd., Tokyo, Japan.
Appl Ergon. 2012 Mar;43(2):308-19. doi: 10.1016/j.apergo.2011.06.006. Epub 2011 Jul 28.
This paper describes the application of an alternative seating concept for surgeons that reflects the research of Zen sitting postures, which require Zazen meditators to maintain fixed postures for long durations. The aim of this alternative approach is to provide sitters with a seat pan with sacral support(1) that provides a more even distribution of seat pressures, induces forward pelvic rotation and improves lumbar, buttock and thigh support. This approach was applied to the development of a chair for microscopic surgery. The experimental chair is a seat pan that closely matches the three-dimensional contours of the user's buttocks. Seat comfort was evaluated by comparing both changes in pelvic tilt and seat pressure distributions using Regionally-Differentiated Pressure Maps (RDPM) with subjective ratings of surgeons while operating in prototype and conventional chairs. Findings include that the sacral support of the prototype chair prevents backward pelvic rotation, as seen in zazen (Zen sitting postures). Preliminary data suggests that the prototype provided greater sitting comfort and support for constrained operating postures than did the conventional chair. These findings support the selective application of concave-shaped seat pans that conform to users' buttocks and reflect Zen sitting principles.
本文介绍了一种替代手术医生坐姿的理念，该理念借鉴了禅修中 Zen 坐姿的研究成果。Zen 坐姿要求冥想者长时间保持固定姿势。这种替代方法的目的是为坐姿者提供一个带有骶骨支撑的座盆（1），以实现座椅压力的更均匀分布，诱导骨盆前倾，并改善腰椎、臀部和大腿的支撑。该方法应用于显微镜手术椅的开发。实验椅的座盆紧密贴合用户臀部的三维轮廓。通过使用区域差异化压力图（RDPM）比较骨盆倾斜度和座椅压力分布的变化，并结合医生在原型和传统座椅上操作时的主观评价，评估座椅的舒适性。研究结果表明，原型椅的骶骨支撑可防止骨盆后倾，这与 Zen 坐姿（禅修坐姿）相同。初步数据表明，与传统座椅相比，原型椅为约束操作姿势提供了更大的舒适度和支撑。这些发现支持使用符合人体臀部形状并体现 Zen 坐姿原理的凹形座盆。
