视觉干扰对前交叉韧带重建后运动者下肢生物力学特征的影响  

Effects of visual interference on biomechanical characteristics of lower limbs in athletes after anterior cruciate ligament reconstruction Zhang Sizhuo1,2,Liu Xiaoqian1,Wang Guanglan2

作　　者：张思卓 刘骁蒨[1] 王广兰[2] Zhang Sizhuo;Liu Xiaoqian;Wang Guanglan(Wuhan Business University,Wuhan 430079,Hubei Province,China;School of Sports Medicine,Wuhan Sports University,Wuhan 430079,Hubei Province,China)

机构地区：[1]武汉商学院,湖北省武汉市430079 [2]武汉体育学院运动医学院,湖北省武汉市430079

出　　处：《中国组织工程研究》2025年第20期4223-4229,共7页Chinese Journal of Tissue Engineering Research

基　　金：武汉商学院校级课题(武商院科[2023]1号+2023KY037),项目负责人:张思卓;湖北省教育厅科学技术研究计划指导性项目(B2022294),项目负责人:刘骁蒨。

摘　　要：背景:由于本体感觉缺陷,前交叉韧带重建后运动者可能会使用代偿性稳定策略,将感觉重新加权到更可靠的视觉刺激。然而,尚不清楚视觉信息受到干扰时,其下肢生物力学特征会如何改变。目的:探究视觉干扰对前交叉韧带重建后运动者和健康运动者单腿着陆时下肢运动学、动力学特征的影响。方法:招募20名前交叉韧带重建术后运动者和20名健康运动者,随机经历睁眼和视觉干扰2种不同的视觉条件,并分别在2种视觉条件下完成单腿着陆。采用频闪眼镜进行视觉干扰,频率设为3 Hz,即睁眼0.1 s,闭眼0.233 s。应用红外高速运动捕捉系统(200 Hz)采集患侧/优势侧下肢的运动学参数,应用三维测力台(1 000 Hz)采集下肢动力学参数。采用双因素重复测量方差分析确定组别和视觉条件对运动学、动力学变量的影响。结果与结论:(1)与睁眼条件相比,视觉干扰条件下前交叉韧带重建术后运动者和健康运动者在初始着地时刻的膝关节外翻角度(P=0.026)和踝关节内翻角度(P=0.006)显著升高;(2)与睁眼条件相比,视觉干扰增加了前交叉韧带重建术后运动者在膝关节屈曲峰值时刻的膝关节外翻角度(P <0.001),但对健康运动者没有显著影响(P=0.527);(3)与睁眼条件相比,视觉干扰条件下前交叉韧带重建术后运动者和健康运动者在膝屈曲峰值时刻的髋关节伸直力矩显著升高(P=0.047),膝关节伸直力矩显著降低(P=0.001)。结果表明:视觉干扰增加了前交叉韧带重建术后运动者和健康运动者膝关节外翻和踝关节内翻角度,这可能会增加前交叉韧带损伤/二次损伤和踝关节外侧扭伤的风险。此外,视觉干扰使运动者在矢状面表现出负荷向近端转移的代偿策略。BACKGROUND:Due to proprioceptive deficits,athletes after anterior cruciate ligament reconstruction may use compensatory stabilization strategies to reweight sensation toward more reliable visual stimuli.However,it is unclear how interference with visual information affects lower limb biomechanics.OBJECTIVE:To investigate the effects of visual interference on the kinematic and dynamic characteristics of lower limbs during single-leg landing in athletes after anterior cruciate ligament reconstruction and healthy athletes.METHODS:Twenty athletes undergoing anterior cruciate ligament reconstruction and 20 healthy athletes were recruited and randomly subjected to two different visual conditions:eyes open and visual interference.They completed single-leg landing under the two visual conditions.Visual interference was performed using stroboscopic glasses with a frequency of 3 Hz,i.e.0.1 seconds with eyes open and 0.233 seconds with eyes closed.The kinematic parameters of the affected/dominant lower limbs were collected using an infrared high-speed motion capture system(200 Hz),and the kinetic parameters of the lower limbs were collected using a three-dimensional force platform(1000 Hz).Two-way repeated measures analysis of variance was used to determine the effects of group and visual condition on kinematic and kinetic variables.RESULTS AND CONCLUSION:(1)Compared with the eyes-open condition,the knee valgus angle(P=0.026)and ankle varus angle(P=0.006)of athletes undergoing anterior cruciate ligament reconstruction and healthy athletes at the initial landing moment under visual interference conditions significantly increased.(2)Compared with the eyes-open condition,visual interference increased the knee valgus angle at the peak knee flexion moment in athletes after anterior cruciate ligament reconstruction(P<0.001),but it did not significantly increase the knee valgus angle in healthy athletes(P=0.527).(3)Compared with the eyes-open condition,under visual interference conditions,the hip extension moment of athletes udner

关 键 词：视觉干扰 频闪眼镜 前交叉韧带重建 单腿着陆 运动学 动力学 生物力学 运动者 

分 类 号：R493[医药卫生—康复医学] R318[医药卫生—临床医学] R87