Lee M, Latimer J, Maher C
Dept. of Biological Sciences Faculty of Health Sciences, University of Sydney, Australia.
Clin Biomech (Bristol). 1993 Nov;8(6):302-6. doi: 10.1016/0268-0033(93)90004-2.
The purpose of this study was to investigate whether spinal manipulation alters the posteroanterior stiffness of the manipulated region. Thirty subjects with no history of thoracic pain or contraindication to manipulation participated. The manipulation studied was a posteroanterior thrust applied to the T4-5 spinal level. The effect of the manipulation was compared to a control intervention of supine lying. The posteroanterior stiffness of all subjects was measured at the T4 and T5 levels initially, and remeasured after both the manipulation and control interventions. Change scores relating to the change in posteroanterior stiffness due to manipulation and due to the control intervention were computed. A t-test comparing the change scores between interventions revealed no significant difference. However, the posteroanterior stiffness at T5 was found to be significantly greater than at T4. It was concluded that in the case of asymptomatic subjects these results did not provide support for the hypothesis that posteroanterior stiffness is altered by manipulation.
本研究的目的是调查脊柱手法操作是否会改变被操作区域的前后位刚度。30名无胸痛病史且无手法操作禁忌证的受试者参与了研究。所研究的手法操作是对T4 - 5脊柱节段施加前后位推力。将该手法操作的效果与仰卧位的对照干预进行比较。所有受试者的前后位刚度在最初于T4和T5水平进行测量，并在手法操作和对照干预后重新测量。计算了与手法操作和对照干预导致的前后位刚度变化相关的变化分数。比较干预之间变化分数的t检验未显示出显著差异。然而，发现T5处的前后位刚度显著大于T4处。得出的结论是，对于无症状受试者，这些结果不支持手法操作会改变前后位刚度这一假设。
