IEEE Trans Neural Syst Rehabil Eng. 2013 Sep;21(5):860-8. doi: 10.1109/TNSRE.2013.2273874.
Knee injuries often occur in pivoting activities but most existing training and rehabilitation devices mainly involve sagittal movements. A pivoting elliptical training system (PETS) was developed to train and evaluate neuromuscular control in pivoting for the purposes of prevention and rehabilitation of musculoskeletal injuries. The PETS have capabilities of controlling two footplates individually or simultaneously through servomotor control so that the footplates behave like two torsional springs with adjustable offset and stiffness, slippery surface, or under external perturbations. Feasibility of the PETS in improving pivoting neuromuscular control and pivoting neuromechanical properties was demonstrated through experiments on healthy subjects, with reduced pivoting instability and reaction time, and improved proprioceptive acuity following training. The PETS can potentially be used as a therapeutic and research tool to investigate mechanisms underlying pivoting-related injuries and train human subjects for improving neuromuscular control during risky pivoting activities.
膝关节损伤常发生于旋转活动中，但现有的大多数训练和康复设备主要涉及矢状面运动。为了预防和治疗肌肉骨骼损伤，开发了一种旋转椭圆训练系统（Pivoting Elliptical Training System，简称 PETS），用于训练和评估旋转时的神经肌肉控制。通过伺服电机控制，PETS 可以单独或同时控制两个脚踏板，使脚踏板的行为类似于两个具有可调偏置和刚度的扭转弹簧，具有光滑的表面或受到外部干扰。通过对健康受试者的实验，证明了 PETS 改善旋转神经肌肉控制和旋转神经机械性能的可行性，训练后旋转不稳定性和反应时间降低，本体感觉敏锐度提高。PETS 可作为一种治疗和研究工具，用于研究与旋转相关的损伤机制，并对人体进行训练以提高在危险的旋转活动中神经肌肉的控制能力。
