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腰椎间盘突出症患者腰屈伸肌的功能变化 |
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占 飞1 吴 毅1 胡永善1 白玉龙1 朱玉莲1
摘要 目的：通过对腰椎间盘突出症患者及正常人的腰屈伸肌进行等速肌力测试，观察腰椎间盘突出症对患者腰屈、伸肌肌力等的影响。方法：运用Cybex-6000型等速测力系统分别对24名患者及正常人在慢速(30°/s)和中速(90°/s)条件下进行峰力矩、最大单次作功量、力矩加速能及平均功率的测定。结果：两种测试速度下，患者腰屈肌峰力矩值与正常人相比分别降低5.75%和14.43%，但无显著差异(P>0.05)；而腰伸肌峰力矩值分别降低25.68%和27.92% (P<0.001)。患者屈肌和伸肌的力矩加速能、最大单次作功量、平均功率均较正常人显著降低(P<0.05)。患者屈肌/伸肌峰力矩比值较正常人显著增大。结论：腰椎间盘突出症患者腰屈伸肌功能同时受到一定影响，且腰伸肌肌力的下降甚于屈肌。提示患者康复过程中需加强腰屈伸肌肌肉功能的训练，尤其应强调腰伸肌的训炼。
关键词 腰椎间盘突出症；等速测试；肌肉功能
Changes of lumbar flexion-extension muscular function in patients with lumbar intervertebral disc protrusion/ ZHAN Fei, WU Yi, HU Yongshan, et al//Chinese Journal of Rehabilitation Medicine, 1998, 13(4):156～158
Abstract Objective:To evaluate isokinetic lumbar flexion-extension muscular function in patients with protrusion of intervertebral disc. Method: Lumbar flexors and extensors strength were measured at two angular velocities (30°/s、90°/s) among 24 patients with lumbar intervertebral disc protrusion and 24 normal subjects with Cybex-6000 isokinetic testing system. Result: Peak torque value of the flexors at two angular velocities decreased 5.75% and 14.43%, but there was no significant difference between the patients and normal subjects (P>0.05). Peak torque of the extensors in the patients were significant lower than those of normal subjects ( 25.68% and 27.92%, P<0.001) . Total work、torque acceleration energy and average power of flexors and extensors in the patients decreased significantly. Flexor/extensor peak torque ratios in the patients were significantly greater than those of normal subjects. Conclusion: In patients with protrusion of intervertebral disc, functions of both flexors and extensors of the lumbar spine disordered significantly. Decline of extensor strength was greater than that of flexor strength. It is suggested that functional training of flexors and extensors in the patients is necessary in rehabilitation program. Especially, train[1] [2] 下一页
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