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目的探讨肌力训练对下背痛患者胸腰椎生物力学的影响。方法分为观察组与对照组2组,观察组为2008年9月~2010年8月间本院门诊的50例下背痛患者,其中男24例,女26例,年龄50~70岁,平均(59.7±5.7)岁。对照组为50~70岁的正常人群,其中男23例,女27例,平均(61.1±5.6)岁。观察组进行肌力训练,每次40 min,每天2次,共12周。两组人员分别行在治疗或入组前、治疗后12周行胸腰椎X摄片,进行双能X线骨密度测试,采用测骨器测量胸腰椎相关形态检查,同时行疼痛视觉模拟评分(VAS)。结果与对照组相比,观察组治疗前腰椎前凸角、骶骨倾斜角均明显减少,2组差异显著(P<0.05),与治疗前相比,观察组治疗后腰椎曲度、骶骨倾斜角及骨密度均无显著差异(P>0.05),但治疗后观察组患VAS评分明显下降(P<0.05)。结论 肌力训练对下背痛患者的胸腰椎生物力学改变有积极的影响,并能缓解疼痛。
Objective To investigate the effect of muscle strength training on thoracolumbar biomechanics in patients with lower back pain. Methods The observation group was divided into observation group and control group. The observation group consisted of 50 patients with lower back pain in our hospital from September 2008 to August 2010, including 24 males and 26 females, aged from 50 to 70 years. Average (59.7 ± 5.7) years old. The control group was 50-70 years old normal population, including 23 males and 27 females, with an average of (61.1 ± 5.6) years. Observation group for muscle training, each 40 min, 2 times a day for a total of 12 weeks. Two groups of patients were treated before or after treatment, thoracic and lumbar X-ray photography 12 weeks after treatment for dual-energy X-ray bone mineral density measurement using thoracolumbar spine related morphological examination, while pain visual analogue scale ( VAS). Results Compared with the control group, the lumbar lordosis angle and the sacral tilt angle in the observation group were significantly decreased (P <0.05), and the lumbar curvature, sacral tilt angle And bone mineral density (P> 0.05). However, the VAS score of observation group decreased significantly after treatment (P <0.05). Conclusions Muscle training has a positive effect on the biomechanical changes of thoracolumbar spine in patients with lower back pain and can relieve the pain.