Trunk muscle recruitment patterns in patients with low back pain enhance the stability of the lumbar spine
Trunk muscle recruitment patterns in patients with low back pain enhance the stability of the lumbar spine
复制标题
DOI：
10.1097/00007632-200304150-00018
复制
发表时间：
2003-04-15
期刊：
影响因子：
3
通讯作者：
Radebold, A
中科院分区：
文献类型：
--
作者：
van Dieën, JH;Cholewicki, J;Radebold, A
研究设计.对健康对照组和慢性腰痛患者的躯干肌募集模式进行了比较研究。评估下腰痛患者躯干肌的恢复情况。背景资料概要。关于腰痛患者躯干肌募集的水平和模式，已有证据表明。这种差异部分可以用方法上的差异来解释。据推测，躯干肌肉募集模式可能会改变，在腰痛患者，以弥补减少脊柱稳定性。在这项研究中，16名腰痛患者和16名匹配的对照受试者进行了缓慢的躯干运动的中立姿势和等距斜坡收缩，而坐直。计算肌电振幅的比值和拮抗肌与激动肌以及节段插入肌与仅插入胸部和骨盆的肌的估计力矩贡献。此外，进行模型模拟，以评估肌肉募集的变化对脊柱稳定性的影响。拮抗剂激动剂的比例，腰胸竖脊肌肌电图振幅和估计的力矩贡献的患者比对照组。模拟模型预测这些变化将有效地增加脊柱稳定性。下腰痛患者的躯干肌募集模式与健康对照受试者不同。这些差异可能是功能性的，可以增强患者的脊柱稳定性。
Study Design. A comparative study of trunk muscle recruitment patterns in healthy control subjects and patients with chronic low back pain was conducted.Objective. To assess trunk muscle recruitment in patients with low back pain.Summary of Background Data. Conflicting evidence has been reported on the level and pattern of trunk muscle recruitment in patients with low back pain. The disparities can be explained partly by methodologic differences. It was hypothesized that trunk muscle recruitment patterns may be altered in patients with low back pain to compensate for reduced spinal stability.Methods. For this study, 16 patients with low back pain and 16 matched control subjects performed slow trunk motions about the neutral posture and isometric ramp contractions while seated upright. Ratios of electromyographic amplitudes and estimated moment contributions of antagonist over agonist muscles and of segmentally inserting muscles over muscles inserting on the thorax and pelvis only were calculated. In addition, model simulations were performed to assess the effect of changes in muscle recruitment on spinal stability.Results. The ratios of antagonist over agonist, and of lumbar over thoracic erector spinae electromyographic amplitude and estimated moment contributions were greater in the patients than in the control subjects. The simulation model predicted that these changes would effectively increase spinal stability.Conclusions. Trunk muscle recruitment patterns in patients with low back pain are different from those in healthy control subjects. The differences are likely to be functional with respect to enhancement of spinal stability in the patients.