外侧腹部肌群在骨盆运动控制中的作用机制及其在"骨盆带疼痛"中的变化

项目名称： 外侧腹部肌群在骨盆运动控制中的作用机制及其在"骨盆带疼痛"中的变化

项目编号： No.31270996

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 生物科学

项目作者： 胡海

作者单位： 上海交通大学

项目金额： 80万元

中文摘要： 骨盆带疼痛作为下腰痛的一种特殊类型，在妊娠妇女的发病率约45%，而产后妇女的发病率多达25%。它病因复杂，其中之一是生物力学因素。骨盆带作为连接躯干和下肢的唯一结构，存在内在解剖不稳定性，需要主动的运动控制对骨盆形成动力锁合,才能达到骨盆带的稳定，其中外侧腹部肌群对产生动力锁合起主要作用。近年来，本项目负责人从仰卧位单侧直腿抬高实验和站立位行走实验入手进行的生物力学研究，证实了这一理论，并发现即使简单的动作，运动控制也需要全身各节段和肌肉之间在三维空间进行精密协调。然而，骨盆的活动度较小，仍缺乏足够的运动学和动力学证据。本项目针对骨盆带疼痛的病人，对比正常人群，致力于进一步研究外侧腹部肌群在骨盆运动控制中的作用机制，应用B超及细丝肌电图技术获得腹部肌肉形态学和肌电图数据，结合运动学和动力学资料，旨在阐明外侧腹部肌群在骨盆运动控制中的作用机制和病理机制，为骨盆带疼痛的诊断和治疗提供理论依据。

中文关键词： 骨盆带疼痛；外侧腹部肌群；生物力学；步态分析；主动直腿抬高试验

英文摘要： As a special subgroup of low back pain, pelvic girdle pain (PGP) has drawn more and more attentions in western countries,but almost none in China. In a systematic review in 2004, Wu et al.observed that the far majority of PGP cases are related to pregnancy, with complaints starting during or shortly after pregnancy. Wu et al.coined this syndrome "pregnancy-related pelvic girdle pain (PPP)", and reported that about 45% of all pregnant women and 25% of all postpartum women suffered from PPP and/or pregnancy-related low back pain. The pathophysiological mechanisms underlying PGP remain poorly understood. A variety of etiologic factors have been proposed, such as hormonal and biomechanical factors associated with pregnancy, and problems with motor control. Pelvic girdle is the only structure between trunk and the lower extremities. Due to its internal instability, it needs active motor control to generate force closure on pelvic to get a stable situation. The lateral abdominal muscles do play the main role on this force closure. The applicant's previous biomechanical studies on pelvic girdle via the tasks of the Active Straight Leg Raise test and tradmill walking have proved the theory of force closure. Futhermore, we found that even a single task, the motor control needs fine coordination of all segments of the

英文关键词： pelvic girdle pain；lateral abdominal muscles；biomechanics；gait analysis；active straight leg raise