Department of Physical Medicine and Functional Rehabilitation, University of the South, Habib Bourguiba University Hospital, El Ain Road, 3029 Sfax, Tunisia.
Joint Bone Spine. 2011 May;78(3):291-7. doi: 10.1016/j.jbspin.2010.09.008. Epub 2010 Oct 23.
We examine the postural profile and muscular forces of the trunk and inferior members of patients with chronic low back pain.
In this study, we include 60 subjects forming two groups: a first group (G1) of 30 patients with chronic low back pain and a second group (G2) of 30 healthy subjects. Every subject profited from an isokinetic evaluation of the muscular forces of the trunk (at 60 and 90°.s(-1)) and knees (at 60 and 120°.s(-1)) and of a postural evaluation. The isokinetic evaluation was carried out using Cybex(®) Norm II dynamometer with its Trunk Extension/Flexion (TEF) module set in concentric mode. The parameter under study was the torque peak. The postural evaluation was accomplished using the platform SATEL for the balance analysis associated with four conditions: static on stable plan open eyes (OE) then closed eyes (CE) and static on unstable plan OE then CE. The parameters under study were the averages of the total lengths, total surfaces, and the X and Y means.
The averages of the torque peaks of the trunk flexor and extensor muscles at the speeds of 60 and 90°.s(-1) were inferior in group G1 as compared to G2. The differences were statistically insignificant only for the extensor muscles (p<0.005). The averages of the torque peaks of the knee flexors and extensors at 60 and 120°.s(-1) were the lowest in group G1. The differences were significant (p<0.05). The averages of postural parameters were more important in group G1, indicating a postural deficit in this group.
We showed deficits of the posture and muscles of the trunk and knees of patients with chronic lumbar pain. The muscular deficit of the trunk predominates on extensors.
我们研究慢性下腰痛患者的姿势特征和躯干及下肢的肌肉力量。
本研究纳入 60 名受试者，分为两组：一组（G1 组）为 30 名慢性下腰痛患者，另一组（G2 组）为 30 名健康受试者。每位受试者均进行了躯干（60°和 90°·s-1）和膝关节（60°和 120°·s-1）等速肌力及姿势评估。等速肌力评估采用 Cybex（®）Norm II 测力计及其躯干屈伸（TEF）模块，以同心模式进行。研究的参数为峰值扭矩。姿势评估采用 SATEL 平台进行平衡分析，共 4 种条件：睁眼（OE）稳定平面静态、闭眼（CE）稳定平面静态、OE 不稳定平面静态、CE 不稳定平面静态。研究的参数为总长度、总表面、X 轴和 Y 轴平均值的平均值。
G1 组躯干屈肌和伸肌在 60°和 90°·s-1 时的平均峰值扭矩均低于 G2 组。仅伸肌的差异具有统计学意义（p<0.005）。G1 组的膝关节屈肌和伸肌在 60°和 120°·s-1 时的平均峰值扭矩最低。差异具有统计学意义（p<0.05）。G1 组的姿势参数平均值较高，表明该组存在姿势缺陷。
我们发现慢性腰痛患者的躯干和膝关节姿势及肌肉力量存在缺陷。躯干肌肉的缺陷以伸肌为主。
