Spinal kinematics and trunk muscle activity in cyclists: a comparison between healthy controls and non-specific chronic low back pain subjects - a pilot investigation
Spinal kinematics and trunk muscle activity in cyclists: a comparison between healthy controls and non-specific chronic low back pain subjects - a pilot investigation
复制标题
DOI：
10.1016/j.math.2004.06.002
复制
发表时间：
2004-11-01
期刊：
影响因子：
--
通讯作者：
O'Sullivan, PB
中科院分区：
文献类型：
--
作者：
Burnett, AF;Cornelius, MW;O'Sullivan, PB
这项初步研究的目的是检查有无非特异性慢性腰痛（NSCLBP）的骑自行车者的脊柱运动学和躯干肌肉活动是否存在差异。众所周知，骑自行车的人容易腰痛（LBP），然而，这一问题的病因尚未得到充分的研究。致病因素被认为是长时间的前屈、屈曲松弛或竖脊过度激活、机械蠕变和在屈曲和旋转位置时产生高机械负荷。9名无症状骑车者和9名非慢性粒细胞性bp骑车者，主要与骑车有关的屈曲模式障碍。通过电磁跟踪系统测量脊柱运动学，并从选定的躯干肌肉两侧记录肌电图。每五分钟收集一次数据，直到背部疼痛或全身不适阻止进一步骑行。在疼痛组骑车者显示出增加下腰椎屈曲和旋转的趋势，并伴有下腰椎多裂肌共同收缩的丧失。这块肌肉是腰椎的关键稳定剂。研究结果表明，运动控制和下腰椎运动学的改变与骑自行车者腰痛的发生有关。(C) 2004 Elsevier Ltd.版权所有。
The aim of this pilot study was to examine whether differences existed in spinal kinematics and trunk muscle activity in cyclists with and without non-specific chronic low back pain (NSCLBP). Cyclists are known to be vulnerable to low back pain (LBP) however, the aetiology of this problem has not been adequately researched. Causative factors are thought to be prolonged forward flexion, flexion-relaxation or overactivation of the erector spinae, mechanical creep and generation of high mechanical loads while being in a flexed and rotated position. Nine asymptomatic cyclists and nine cyclists with NSCLBP with a flexion pattern disorder primarily related to cycling were tested. Spinal kinematics were measured by an electromagnetic tracking system and EMG was recorded bilaterally from selected trunk muscles. Data were collected every five minutes until back pain occurred or general discomfort prevented further cycling. Cyclists in the pain group showed a trend towards increased lower lumbar flexion and rotation with an associated loss of co-contraction of the lower lumbar multifidus. This muscle is known to be a key stabiliser of the lumbar spine. The findings suggest altered motor control and kinematics of the lower lumbar spine are associated with the development of LBP in cyclists. (C) 2004 Elsevier Ltd. All rights reserved.