Petersen Cheryl M, Rundquist Peter J
Concordia University Wisconsin, 12800 North Lake Shore Drive, Mequon, WI 53097, USA.
J Neuroeng Rehabil. 2009 Apr 22;6:12. doi: 10.1186/1743-0003-6-12.
A sagittal plane spine reposition sense device (SRSD) has been developed. Two questions were addressed with this study concerning the new SRSD: 1) whether spine movement was occurring with the methodology, and 2) where movement was taking place.
Sixty-five subjects performed seven trials of repositioning to a two-thirds full flexion position in sitting with X and Y displacement measurements taken at the T4 and L3 levels. The thoracolumbar angle between the T4 and the L3 level was computed and compared between the positions tested. A two (vertebral level of thoracic and lumbar) by seven (trials) mixed model repeated measures ANOVA indicated whether significant differences were present between the thoracic (T4) and lumbar (L3) angular measurements.
Calculated thoracolumbar angles between T4 and L3 were significantly different for all positions tested indicating spinal movement was occurring with testing. No interactions were found between the seven trials and the two vertebral levels. No significant findings were found between the seven trials but significant differences were found between the two vertebral levels.
This study indicated spine motion was taking place with the SRSD methodology and movement was found specific to the lumbar spine. These findings support utilizing the SRSD to evaluate changes in spine reposition sense during future intervention studies dealing with low back pain.
已研发出一种矢状面脊柱重新定位传感装置（SRSD）。本研究针对这种新型SRSD探讨了两个问题：1）该方法是否会引起脊柱运动，以及2）运动发生的部位。
65名受试者进行了七次重新定位试验，以达到坐姿下三分之二最大屈曲位置，并在T4和L3水平测量X和Y位移。计算T4和L3水平之间的胸腰段角度，并在测试的不同位置之间进行比较。一个二（胸段和腰段椎体水平）×七（试验次数）混合模型重复测量方差分析表明胸段（T4）和腰段（L3）角度测量值之间是否存在显著差异。
所有测试位置的T4和L3之间计算出的胸腰段角度均存在显著差异，表明测试过程中发生了脊柱运动。七次试验和两个椎体水平之间未发现交互作用。七次试验之间未发现显著结果，但两个椎体水平之间存在显著差异。
本研究表明，使用SRSD方法时会发生脊柱运动，且运动特定于腰椎。这些发现支持在未来针对腰痛的干预研究中利用SRSD评估脊柱重新定位感觉的变化。
