Burton A K, Tillotson K M
Department of Life Sciences, Huddersfield Polytechnic, UK.
J Biomed Eng. 1989 May;11(3):245-8. doi: 10.1016/0141-5425(89)90151-9.
The hypothesis that increased lumbar sagittal mobility constitutes a risk factor for recurrent low back trouble was tested in respect of two specific groups of subjects thought likely to display this phenomenon: young females reporting recurrent back pain, and middle-aged adults reporting recurrent or persistent sciatic symptoms. Lumbar flexibility was estimated from back surface curvatures by a validated technique which uses a flexicurve to record mobility in upper (T12-L4) and lower (L4-S2) lumbar regions. Mean mobility for young females (less than 40 years) with recurrent back pain was less, though not significantly so, than those without back trouble. A loss of mobility was also found in young males with recurrent trouble. However, it was a proportionally greater loss than that found in the females and was statistically significant. The mean mobility for middle-age adults with recurrent sciatic symptoms was significantly reduced compared to those without a history of back trouble. Whilst these results failed to support the general hypothesis, it remains possible that aspects of increased mobility not studied here, such as localized segmental instability or abnormal coupled motions, may be associated with an increased frequency of recurrent low back trouble.
关于增加的腰椎矢状面活动度是复发性下背部疾病危险因素这一假设，针对两组可能出现此现象的特定受试者群体进行了测试：报告复发性背痛的年轻女性，以及报告复发性或持续性坐骨神经症状的中年成年人。通过一种经过验证的技术，利用柔性曲线记录上腰椎区域（T12-L4）和下腰椎区域（L4-S2）的活动度，从背部表面曲率估计腰椎灵活性。有复发性背痛的年轻女性（小于40岁）的平均活动度低于无背部问题的女性，虽不显著。在有复发性问题的年轻男性中也发现活动度丧失。然而，与女性相比，其丧失程度更大且具有统计学意义。有复发性坐骨神经症状的中年成年人的平均活动度与无背部疾病史的成年人相比显著降低。虽然这些结果未能支持总体假设，但仍有可能未在此研究的活动度增加的方面，如局部节段性不稳定或异常耦合运动，可能与复发性下背部疾病频率增加有关。
