不同类型腹部支撑对腹型肥胖者腰背部肌群表面肌电信号的影响  

Effects of different types of abdominal support on lumbar-back muscle surface electromyography signals in people with abdominal obesity

作　　者：尚琬迪 王兴泽 危小焰[1] Shang Wandi;Wang Xingze;Wei Xiaoyan(School of Sports Science,Shanghai University of Sport,Shanghai 200438,China;School of Physical Education,Huzhou University,Huzhou 313000,Zhejiang Province,China)

机构地区：[1]上海体育学院运动科学学院,上海市200438 [2]湖州师范学院体育学院,浙江省湖州市313000

出　　处：《中国组织工程研究》2022年第11期1656-1661,共6页Chinese Journal of Tissue Engineering Research

基　　金：国家重点项目(2020YFC2007205),项目参与者:危小焰。

摘　　要：背景:国内外许多学者研发了多种腰痛防护带,经过生物力学研究及临床应用等一系列实验,并无合适的防护带可以为腹型肥胖人群带来明确的益处。目的:探究不同类型腹部支撑对腹型肥胖人群躯干屈曲角度峰值及腰背部肌群表面肌电信号的影响。方法:招募18名成年男性腹型肥胖者,在躯干屈伸(非负重)和屈伸搬重物(负重)过程中,每位受试者均佩戴无支撑、弹性腹带和非弹性-运动白贴三种腹部支撑,采用Noranxon双极表面肌电设备采集多裂肌、腰部竖脊肌、胸部竖脊肌的肌电信号,利用Vicon红外摄像头采集躯干屈伸时的运动轨迹。试验方案经上海体育学院伦理委员会批准,批号:102772020RT091。结果与结论:(1)多裂肌:在非负重-伸展阶段,与无支撑和弹性腹带支撑相比,运动白贴支撑降低了多裂肌激活程度(P<0.05)。在负重-伸展阶段,与无支撑和运动白贴相比,弹性腹带支撑显著降低了多裂肌激活程度(P<0.05)。(2)腰部竖脊肌:在非负重-屈曲阶段,与运动白贴相比,弹性腹带显著降低了腰部竖脊肌激活程度(P<0.05)。在负重-伸展和屈曲阶段,与无支撑和运动白贴相比,弹性腹带均降低了腰部竖脊肌激活程度(P<0.05)。(3)胸部竖脊肌:在非负重-屈曲阶段,与无支撑条件相比,弹性腹带显著降低了胸部竖脊肌激活程度(P<0.05)。在负重-屈曲阶段,弹性腹带和运动白贴均降低了胸部竖脊肌激活程度(P<0.05)。在负重-伸展阶段,与无支撑相比,运动白贴和弹性腹带降低了胸部竖脊肌激活程度(P<0.05);与运动白贴相比,弹性腹带降低了胸部竖脊肌激活程度(P<0.05)。(4)运动白贴支撑时的躯干屈曲角度峰值小于无支撑与弹性腹带支撑时(P<0.05)。(5)结果表明,弹性腹带和非弹性-运动白贴均降低了腹型肥胖者腰背部肌群的激活程度,可能会减缓脊柱受压,预防肥型肥胖人群下腰痛的发生,而且弹性腹带不会限�BACKGROUND:Scholars at home and abroad have developed various lumbar protective belts on prevention of low back pain.Following series of experiments in biomechanical studies and clinical applications,no suitable belts can provide definite benefit for people with abdominal obesity.OBJECTIVE:To investigate the effects of several types of abdominal supports on trunk range of motion and surface electromyography of back muscles among subjects with abdominal obesity.METHODS:Eighteen adult males with abdominal obesity were recruited.Different types of abdominal supports,no taping,elastic abdominal belt and nonelastic athletic white taping were randomly selected during flexion-extension phase of trunk at non-weight-bearing and heavy lifting(weight-bearing).Noranxon bipolar surface electromyography device was used to collected electromyography activities of back muscles,including the multifidus,lumbar erector spinae and thoracic erector spinae muscles.Kinematics of trunk was recorded with a Vicon T40 motion capture system.The protocol was approved by the Ethics Committee of Shanghai University of Sport(approval No.102772020 RT091).RESULTS AND CONCLUSION:Multifidus:Compared with no taping and elastic abdominal belt,multifidus values of athletic white taping were significantly reduced during extension phase of non-weight-bearing(P<0.05).Additionally,during extension phase of weight-bearing,multifidus values of elastic abdominal belt were significantly lower than no taping and athletic white taping(P<0.05).Lumbar erector spinae:Compared with athletic white taping,lumbar erector spinae values of elastic abdominal belt were significantly decreased during flexion phase of non-weight-bearing(P<0.05).Compared with no taping and athletic white taping,lumbar erector spinae values of elastic abdominal belt were significantly reduced during extension phase of non-weightbearing and weight-bearing(P<0.05).Thoracic erector spinae:Compared with no taping,thoracic erector spinae values of elastic abdominal belt were significantly reduced

关 键 词：腰部支撑 弹性腹带 运动白贴 腹型肥胖 表面肌电 运动学 下腰痛 

分 类 号：R459.9[医药卫生—治疗学] R319[医药卫生—临床医学]