Coldron Y, Stokes M, Cook K
Department of Biochemistry and Immunology, St George's Hospital Medical School, University of London, UK.
Man Ther. 2003 Aug;8(3):161-5. doi: 10.1016/s1356-689x(03)00011-0.
This methodological study examined the influence of body position when measuring multifidus muscle size using real-time ultrasound imaging. Previous studies examined multifidus with the subject prone but people with certain conditions cannot be studied in this position, so side lying was investigated as an alternative posture. In 20 normal females (aged 19-45 years), the cross-sectional area (CSA) of lumbar multifidus was measured at the level of the fifth lumbar vertebra (L5) on both the right and left sides, with the subject in prone and in side lying. Multifidus CSA was highly correlated between the two positions on both the right (r=0.90) and left (r=0.91) sides. Paired t-tests found no significant differences between the measurements made in the two scanning postures (right P=0.77; left P=0.16). Bland and Altman plots showed good agreement between the two positions, with no systematic difference. These findings demonstrate that measurements of lumbar multifidus at L5 can be made in either prone or side lying and a valid comparison of the results obtained in both positions can be made.
这项方法学研究探讨了使用实时超声成像测量多裂肌大小时身体位置的影响。以往的研究在受试者俯卧位时对多裂肌进行检查，但某些情况下的患者无法在此体位进行研究，因此研究了侧卧位作为替代姿势。在20名正常女性（年龄19 - 45岁）中，让受试者分别处于俯卧位和侧卧位，在第五腰椎（L5）水平测量左右两侧腰多裂肌的横截面积（CSA）。右侧和左侧两个体位的多裂肌CSA高度相关（右侧r = 0.90；左侧r = 0.91）。配对t检验发现两种扫描姿势下的测量结果无显著差异（右侧P = 0.77；左侧P = 0.16）。Bland和Altman图显示两个体位之间一致性良好，无系统差异。这些结果表明，L5水平的腰多裂肌测量可以在俯卧位或侧卧位进行，并且可以对两个体位获得的结果进行有效比较。
