Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, and Department of Biostatistics, Institute of Public Health, Aarhus University, 8000, Arhus C, Denmark.
Eur Spine J. 2012 Mar;21(3):425-31. doi: 10.1007/s00586-011-1981-5. Epub 2011 Aug 24.
Altered postural control has been observed in low back pain (LBP) patients. They seem to be more dependent on vision when standing. The objective of the study was to determine concurrent and predictive validity of measures of postural stability in LBP patients.
Centre of Pressure (CoP) measurements were tested against pain, fear of pain, and physical function. Velocity, anterior-posterior displacement, and the Romberg Ratio obtained on a portable force platform were used as measures of postural stability.
Baseline and 12-week follow-up results of 97 LBP patients were evaluated. The correlations between CoP measurements and pain, fear of pain, and physical function were poor. There were no significant differences in CoP measurements between patients with no change or deterioration and patients with improvement in pain and back-specific function.
This first study of concurrent and predictive validity of postural balance in LBP patients revealed no association between CoP measures and pain, fear of pain, and physical function.
腰痛（LBP）患者的姿势控制能力发生改变。他们在站立时似乎更依赖于视觉。本研究的目的是确定姿势稳定性测量在 LBP 患者中的同时和预测有效性。
对压力中心（CoP）测量与疼痛、对疼痛的恐惧和身体功能进行了对比。在便携式力平台上获得的速度、前后位移和 Romberg 比被用作姿势稳定性的测量指标。
对 97 例 LBP 患者的基线和 12 周随访结果进行了评估。CoP 测量与疼痛、对疼痛的恐惧和身体功能之间的相关性较差。在疼痛和腰背功能无变化或恶化的患者与疼痛和腰背功能改善的患者之间，CoP 测量值没有显著差异。
本研究首次对 LBP 患者的姿势平衡进行了同时和预测有效性研究，结果显示 CoP 测量值与疼痛、对疼痛的恐惧和身体功能之间没有关联。
