等速肌力训练促进膝关节术后肌力恢复的研究

Recovery of the muscle strength after knee surgery through isokinetic training

运用 Cybex-6000型仪对10名膝关节术后的病人进行患膝屈肌及伸肌的肌肉功能测试及肌力训练。结果表明:经过4周等速向心肌力训练,患膝屈肌及伸肌肌力增加。其中屈肌力矩增加28.64%,伸肌力矩增加41.48%(60°/s 测试),且屈肌及伸肌25次收缩总作功量分别增加48.92%、57.25%(180°/s 测试),表明总作功量反映肌肉功能似较峰力矩值更为敏感。等速肌力训练还使伸肌的作功效率及肌肉收缩初时的爆发力增强。

10 patients received knee surgery through arthroscopy underwent isokinetic muscle test- ing and training of knee flexors and extensors by Cybex-6000.The result showed that after four weeks isokinetic concentric training,the strength of flexors and extensors in- creased significantly.The peak torque of flexors and extensors increased 28.64% and 41.48% res- pectively(speed 60°/s).The total work(25 time)of flexors and extensors increased 48.92% and 57.25% respectively(speed 180°/s).The total work seems more sensitive than the peak torque in reflecting the muscle funetion.The result also showed that isokinetie training could increase the actual work rate intensity(average power)and the explosiveness of muscle contraction(torque acceleration energy)of knee extensors.This study suggested that isokinetie training could improve the function of flexors and extensors after knee surgery.