Larivière Christian, Caron Jean-Maxime, Preuss Richard, Mecheri Hakim
Occupational Safety and Health Research Institute Robert-Sauvé (IRSST), 505, boul, De Maisonneuve Ouest, Montreal, Quebec H3A 3C2, Canada.
BMC Musculoskelet Disord. 2014 Sep 19;15:307. doi: 10.1186/1471-2474-15-307.
Research suggests that in some patients with low back pain, lumbar belts (LB) may derive secondary prophylactic benefits. It remains to be determined, however, which patients are most likely to benefit from prophylactic LB use, and which LB design is optimal for this purpose. The objective of this study was to determine the effect of different lumbar belts designs on range of motion and lumbopelvic rhythm.
Healthy subjects (10 males; 10 females) performed five standing lumbar flexion/extension cycles, with knees straight, during a control (no belt) and four lumbar belt experimental conditions (extensible, with and without dorsal and ventral panels; non-extensible). Motion of the pelvis and lumbar spine was measured with 3D angular inertial sensors.
The results suggest that adding dorsal and ventral panels to an extensible LB produces the largest lumbar spine restrictions among the four tested lumbar belt designs, which in turn also altered the lumbopelvic rhythm. On a more exploratory basis, some sex differences were seen and the sex × experimental condition interaction just failed to reach significance.
LB may provide some biomechanical benefit for patients with low back disorders, based on the protection that may be provided against soft tissue creep-based injury mechanisms. More comprehensive assessment of different LB designs, with additional psychological and neuromuscular measurement outcomes, however, must first be conducted in order to produce sound recommendations for LB use. Future research should also to take sex into account, with sufficient statistical power to clearly refute or confirm the observed trends.
研究表明，对于一些腰痛患者，腰托（LB）可能具有二级预防益处。然而，哪些患者最有可能从预防性使用腰托中获益，以及哪种腰托设计最适合此目的，仍有待确定。本研究的目的是确定不同腰托设计对运动范围和腰骶节律的影响。
健康受试者（10名男性；10名女性）在对照（不使用腰托）和四种腰托实验条件（可伸展的，有和没有背侧和腹侧面板；不可伸展的）下，膝盖伸直进行五次站立位腰椎屈伸循环。使用3D角惯性传感器测量骨盆和腰椎的运动。
结果表明，在四种测试的腰托设计中，在可伸展的腰托上添加背侧和腹侧面板会对腰椎产生最大的限制，这反过来也改变了腰骶节律。在更具探索性的基础上，观察到了一些性别差异，并且性别×实验条件的交互作用刚刚未达到显著水平。
基于可能对基于软组织蠕变的损伤机制提供的保护，腰托可能为腰痛患者提供一些生物力学益处。然而，必须首先对不同的腰托设计进行更全面的评估，并增加心理和神经肌肉测量结果，以便为腰托的使用提供合理的建议。未来的研究还应考虑性别因素，要有足够的统计效力来明确反驳或确认观察到的趋势。
