Cohen M J, Swanson G A, Naliboff B D, Schandler S L, McArthur D L
J Psychosom Res. 1986;30(2):135-41. doi: 10.1016/0022-3999(86)90042-5.
Activity of the paraspinals, abdominals, and hip extensor muscles, heart rate, and skin conductance were measured in 13 chronic low back pain patients (CLBP) and 13 controls during static postures and psychological stress. After 10 min of baseline-rest, a subject was tested during standing, 45 degrees bend, maximum bend, posterior and anterior pelvic tilts, sitting, and supine with knees up, followed by mental arithmetic and the cold pressor. The postures were grouped into supported, balanced, and unbalanced categories. Multivariate analyses of variance revealed differences due to posture categories, but not due to group membership. It was concluded that while work is needed to understand normal muscle function during common movements, there is no compelling evidence that back muscle functioning in CLBP patients differs significantly from control subjects.
在13名慢性下腰痛患者（CLBP）和13名对照组受试者处于静态姿势和心理应激状态时，测量了其脊柱旁肌、腹肌和髋伸肌的活动、心率以及皮肤电传导。在10分钟的基线休息后，对受试者在站立、45度弯腰、最大弯曲、骨盆后倾和前倾、坐姿以及仰卧屈膝状态下进行测试，随后进行心算和冷加压测试。这些姿势被分为支撑、平衡和不平衡三类。多变量方差分析显示，差异是由姿势类别引起的，而非受试者分组。研究得出结论，虽然需要开展工作来了解常见运动过程中的正常肌肉功能，但没有确凿证据表明CLBP患者的背部肌肉功能与对照组受试者有显著差异。
