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

被引:2
|
作者
尚琬迪 [1 ]
王兴泽 [1 ,2 ]
危小焰 [1 ]
机构
[1] 上海体育学院运动科学学院
[2] 湖州师范学院体育学院
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;
D O I
暂无
中图分类号
R589.2 [脂肪代谢障碍];
学科分类号
1002 ; 100201 ;
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制躯干的正常活动范围,适用范围更广。
引用
收藏
页码:1656 / 1661
页数:6
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