Peak torque ( PT), torque acceleration energy ( TAE) and endurance ratio of ankle dorsal and plantar flexion were tested in 101 patients with lumbar disc protrusion using Cybex-6000 isokinetic muscle testing instrument. 应用Cybex-6000型等速肌力测试系统对101例腰椎间盘突出症患者的两侧踝屈、伸最大肌力和耐力进行测量。