非特异性慢性腰背痛飞行员与无症状飞行员之间腰部竖脊肌表面肌电特征比较

Comparison of sEMG of paraspinal muscle between nonspecific low back pain pilots and painfree pilots

目的非特异性慢性腰背痛飞行员与无症状飞行员之间腰部竖脊肌表面肌电特征比较,为飞行员非特异性慢性腰背痛患者的客观诊断提供参考依据。方法用芬兰MEGA公司ME6000-T8表面肌电仪测量47名非特异性慢性腰背痛飞行员与9名无症状飞行员腰部竖脊肌等长收缩与站立位屈伸运动时表面肌电。软件分析竖脊肌等长收缩时疲劳性肌电指标MFs、MPFs、ZCRs、AEMGs,计算双侧竖脊肌各项肌电指标差值绝对值ltrMFs、ltrMPFs、ltrZCR、ltrAEMG,双侧竖脊肌各项肌电指标和绝对值larMFs、larMPFs、larZCR、larAEMG,屈伸运动时屈曲伸直动作AEMG,计算协调性指标FER。用SPSS13.0分析结果。结果竖脊肌等长收缩时慢性非特异性腰背痛飞行员与正常飞行员MFs、lMPFs、ZCRs、AEMGs、ltrMFs、ltrMPFs、ltrZCR、ltrAEMG、larMFs、larMPFs、larZCR、larAEMG各项指标之间差异不明显(P>0.05)。屈伸运动时非特异性腰背痛飞行员与正常飞行员LFAEMG、LEAEMG、RFAEMG、REAEMG、FER差异显著(P<0.05)。结论飞行员非特异性慢性腰背痛患者与无症状飞行员之间的表面肌电指标FER差异显著,有望成为飞行员非特异性慢性腰背痛患者评价的客观指标。

Objective To compare sEMG indexes between nonspecific low back pain pilots and painfree pilots.Methods The sample consisted of 9 painfree pilots and 43 nonspecific low back pain pilots.Surface electromyography was used to measure activity in the paraspinal muscle between L3-4 while subjects moved from an erect to a flexion posture and contracted their lumbar muscle steadily.Analyze sEMG with software MEGAWIN 3.2 indexes such as MFs、MPFs、ZCRs、AEMGs、ltrMFs、 ltrMPFs、ltrZCR、ltrAEMG、larMFs、larMPFs、larZCR、larAEMG,LFAEMG、LEAEMG、RFAEMG、REAEMG and FER.Analyze data with spss 13.0.Results There was a significant difference between nonspecific low back pain pilots and painfree pilots with respect to LFAEMG、LEAEMG、RFAEMG、REAEMG、 FER （P0.05）.There was no significant difference between nonspecific low back pain pilots and painfree pilots with respect to MFs、MPFs、ZCRs、AEMGs、ltrMFs、ltrMPFs、ltrZCR、ltrAEMG、larMFs、 larMPFs、larZCR、larAEMG（P0.05）.Conclusion The difference of sEMG indexes FER was significant between nonspecific low back pain pilots and painfree pilots,FER is an objective index to evaluate nonspecific low back pain pilots.