O'Sullivan Kieran, O'Sullivan Leonard, Campbell Amity, O'Sullivan Peter, Dankaerts Wim
Physiotherapy Department, University of Limerick, Limerick, Ireland.
Man Ther. 2012 Feb;17(1):77-83. doi: 10.1016/j.math.2011.09.006. Epub 2011 Oct 19.
Many factors are associated with low back pain (LBP), including provocative spinal postures. Consequently, lumbo-pelvic posture is commonly assessed in LBP patients. A novel wireless monitor (BodyGuard™) can monitor lumbo-pelvic sagittal plane movements reliably, and has demonstrated concurrent validity during non-functional tasks. This study evaluated the concurrent validity of this monitor during functional tasks, as a precursor to LBP field studies. Twelve painfree participants performed a series of postural tasks (in sitting and standing) three times. Simultaneous postural measurements were obtained by the wireless monitor and a laboratory-based system (CODA™). Postural measurements were strongly correlated (r(s) = 0.88, r(2) = 0.78). The mean difference observed was small (<10% lumbo-pelvic ROM), however some tasks displayed greater error. The results support the concurrent validity of the wireless monitor for analysing lumbo-pelvic posture during functional tasks. Specific limitations of the monitor for certain postural tasks were identified, and should be considered before implementation in future field studies.
许多因素与腰痛（LBP）相关，包括刺激性脊柱姿势。因此，腰骨盆姿势通常在LBP患者中进行评估。一种新型无线监测器（BodyGuard™）能够可靠地监测腰骨盆矢状面运动，并且在非功能性任务期间已证明具有同时效度。本研究评估了该监测器在功能性任务期间的同时效度，作为LBP现场研究的前期准备。12名无疼痛参与者对一系列姿势任务（坐姿和站姿）进行了三次操作。通过无线监测器和基于实验室的系统（CODA™）同时获取姿势测量数据。姿势测量结果高度相关（r(s)=0.88，r(2)=0.78）。观察到的平均差异较小（<腰骨盆ROM的10%），然而一些任务显示出较大误差。结果支持了无线监测器在分析功能性任务期间腰骨盆姿势方面的同时效度。确定了该监测器在某些姿势任务中的特定局限性，在未来现场研究实施之前应予以考虑。
