Hess T, Gleitz M, Egert S, Hopf T
Orthopadische Universitatsklinik Homburg/Saar, Germany.
Arch Orthop Trauma Surg. 1996;115(2):85-9. doi: 10.1007/BF00573447.
The activity of knee-related muscles was registered via exercising on a bicycle ergometer by 17 patients with clinically diagnosed chondropathia patellae. M. quadriceps activity was shorter and the hamstring activity longer in the chondropathy group compared with a matched healthy control group. The changes in m. quadriceps occurred to an almost equal extent in lateral and medial sections. In five patients with unilateral complaints, the electromyographic changes were nevertheless noted on both sides. The study shows that chondropathia patellae involves a change in muscle control affecting not only the knee extensors but also the hamstrings. Through the changed innervation pattern the coactivation phase, i.e. the phase of simultaneous activation of knee flexors and extensors at the end of the extension phase, takes place at a higher angle of flexion. Physiotherapy should involve all knee-related muscles and should include not only isometric but also dynamic exercises.
通过在自行车测力计上进行运动，对17例临床诊断为髌骨软骨病的患者的膝关节相关肌肉活动进行了记录。与匹配的健康对照组相比，软骨病组的股四头肌活动时间较短，而腘绳肌活动时间较长。股四头肌的变化在外侧和内侧部分几乎同等程度地发生。在5例单侧有症状的患者中，两侧均记录到了肌电图变化。该研究表明，髌骨软骨病涉及肌肉控制的改变，不仅影响膝关节伸肌，还影响腘绳肌。通过改变的神经支配模式，共同激活阶段，即在伸展阶段结束时膝关节屈肌和伸肌同时激活的阶段，在更高的屈曲角度发生。物理治疗应涉及所有膝关节相关肌肉，不仅应包括等长运动，还应包括动态运动。
