摘要
目的 了解偏瘫病人恢复独立行走后患肢和健肢的肌力、屈伸肌力比，探讨膝关节不稳定的原因。方法采用ＣｙｂｅｘＮＯＲＭ系统对１０例脑卒中偏瘫病人进行膝伸、屈肌等速肌力测试。结果３种角速度６０、１２０、１８０（°／ｓ）向心和６０°／ｓ离心伸屈肌峰力矩平均值健侧均高于患侧，伸肌 １２０°、１８０°／ｓ和屈肌６０°、１８０°／ｓ健侧峰力矩显著高于患侧（Ｐ值均＜ ０． ０５），离心伸肌 ６０°／ｓ时（Ｐ＜０．０５）；离心收缩大于向心收缩，峰值比（Ｈ／Ｑ）均在４０％～７０％范围。６０°／ｓ膝１０°位向心和离心伸肌力矩健侧显著高于患侧（Ｐ均＜０．０５）。结论 偏瘫病人伸、屈肌肌力不足是造成行走时患膝不稳（膝过伸）的重要原因。
objective To understand muscle strength of knee flexor and extensor and their ratio in hemiplegia patients on who can walk, and to investigate the reason for knee unstability during walking. Method Isokinetic flexion and extension of knee joints were measured by Cybex NORM isokinetic system in 10 patients with hemiplegia. Result The muscle strength of the unaffected side is stronger. The results were significantly different at 120°/s and 180°/s in CON extension, at 60°/s and 180°/s in CON flexion, and at 60°/See ECC extension separately (P < 0. 05). Extensor strength of CON and ECC at position of knee 10°was significandy different(P < 0. 05 ). The rs ratio of flexor and extensor (H/Q) for both sides was between 4o% - 7o%. Conclusion The decreased muscle strength of affected lower limb ac- counts for knee unstability while walking.
出处
《现代康复》
CSCD
2000年第8期1154-1155,共2页
Modern Rehabilitation
关键词
等速肌力
偏瘫
膝关节
isokinetic muscle strength
hemiplegia
knee
