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中文摘要：
通过对现有坐姿矫正产品工作原理及其局限性的分析,提出了一种全新的坐姿矫正方式,即利用人体就坐时的重力,通过四杆机构形成使骨盆前倾的扭矩,以帮助人们轻松地保持健康坐姿;通过生物力学实验获得坐姿状态下人体的外力矩与骨盆倾角的关系,根据实验结果设计和制作了坐姿矫正装置,并通过实验验证了所设计装置的有效性.结果表明,所设计的坐姿矫正装置可以使人们得到最佳坐姿,尤其是在腰部肌肉放松的条件下能够保持理想的骨盆倾角.
英文摘要：
The working principles and limits of existing orthotic devices for sitting posture were analyzed.A novel way to help users easily maintain healthy sitting posture was proposed.By using four-bar linkage,body weight was transformed into torques to rotate the pelvis.A biomechanical experiment was conducted to acquire the relationships between external torques and rotation angles of the pelvis while sitting.Based on the experimental results,the prototype of the gravity-driven orthotic device was built.Its feasibility was proved by a verification experiment.The results showed that this device could help users easily maintain ideal pelvic incidence while relaxing low back muscles.
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