脑卒中偏瘫恢复期患者双足间距离对静态站立平衡功能的影响

Effects of the Distance between Two Feet on Static Standing Balance Function in Convalescent Hemiplegic Patients with Stroke

目的:探讨脑卒中偏瘫恢复期患者静态站立时双足间距离大小对平衡功能的影响,为平衡功能训练提供理论基础。方法:共选取脑卒中偏瘫恢复期患者30例,男17例,女13例,分别在睁眼和闭眼2种方式下,采用Pro-Kin平衡评估训练仪评估双足并拢站立、双足分开(50 cm)和双足最适距离站立3种模式下的静态平衡功能,主要测量参数包括前后摆动幅度标准差、左右摆动幅度标准差、前后平均运动速度、左右平均运动速度、运动椭圆面积和运动长度。结果:①在睁眼状态下,双足分开50 cm站立时,左右摆动幅度标准差[3(1.94,5)]、前后平均运动速度[8.75(6,13.25)mm/s]、运动椭圆面积[185.5(94.75,447)mm^(2)]等参数显著小于双足并拢状态(P<0.05);在闭眼状态下,双足分开50 cm站立时,左右摆动幅度标准差[3(2,4)]、运动椭圆面积[326.5(142.25,557.25)mm^(2)]、运动长度[297(215.94,455.5)mm]等参数显著小于双足并拢状态(P<0.05)。②在睁眼状态下,双足最适距离站立时,左右摆动幅度标准差[3(2,5)]、前后平均运动速度[8.69(5,14)mm/s]、左右平均运动速度[6.32(4,10)mm/s]、运动椭圆面积[186(97,446.5)mm^(2)]、运动长度[196(143.5,306.25)mm]等参数显著小于双足并拢状态(P<0.05);在闭眼状态下,双足最适距离站立时,左右摆动幅度标准差[3(2,5)]、左右平均运动速度[7(4.44,12.25)mm/s]、运动椭圆面积[275(145.25,388.75)mm^(2)]、运动长度[287(216,478.25)mm]等参数显著小于双足并拢状态(P<0.05)。③在睁眼状态下,双足最适距离站立时,左右平均运动速度[6.32(4,10)mm/s]和运动长度[196(143.5,306.25)mm]参数显著小于双足分开50 cm站立状态(P<0.05);在闭眼状态下,双足最适距离站立时,左右平均运动速度[7(4.44,12.25)mm/s]和运动椭圆面积[275(145.25,388.75)mm^(2)]参数显著小于双足分开50 cm站立状态(P<0.05)。结论:脑卒中偏瘫恢复期患者在静态站立时,双下肢之间有一定的最适距离,在这种距离下静态站立平衡功能最佳。

Objective:To study the effects of the distance between two feet on static balance function in convalescent hemiplegic patients with stroke,and to provide theoretical basis for balance training.Methods:Thirty convalescent stroke patients(17 male and 13 female)were evaluated using Pro-Kin balance training instrument with eye open and closed in three standing states:two feet side by side,50 cm and a proper distance.The main measurement parameters included the standard deviation of longitudinal swing(SDoLS),the standard deviation of horizontal swing(SDoHS),mean longitudinal velocity(MLV,mm/s),mean horizontal velocity(MHV,mm/s),the ellipse area of motion(EAM,mm^(2))and the length of motion(LM,mm).Results:1)In the condition of eyes opening,some parameters of standing with feet 50 cm apart were significantly lower than those with feet side by side,including SDoHS[3(1.94,5)],MLV[8.75(6,13.25)mm/s],EAM[185.5(94.75,447)mm^(2)](P<0.05);in the condition of eyes closing,some parameters of standing with feet 50 cm apart were significantly lower than those with feet side by side,including SDoHS[3(2,4)],EAM[326.5(142.25,557.25)mm^(2)]and LM[297(215.94,455.5)mm](P<0.05).2)In the condition of eyes opening,some parameters of standing with feet proper distance were significantly lower than those with feet side by side,including SDoHS[3(2,5)],MLV[8.69(5,14)mm/s],MHV[6.32(4,10)mm/s],EAM[186(97,446.5)mm^(2)]and LM[196(143.5,306.25)mm](P<0.05);in the condition of eyes closing,some parameters of standing with feet proper distance were significantly lower than those with feet side by side,including SDoHS[3(2,5)],MHV[7(4.44,12.25)mm/s],EAM[275(145.25,388.75)mm^(2)],LM[287(216,478.25)mm](P<0.05).3)In the condition of eyes opening,some parameters of standing with feet proper distance were significantly lower than those with feet 50 cm apart,including MHV[6.32(4,10)mm/s]and LM[196(143.5,306.25)mm](P<0.05);in the condition of eyes closing,some parameters of standing with feet proper distance were significantly lower than those with feet 50 cm apart,including MHV[7(4.44,12.25)mm/s]and EAM[275(145.25,388.75)mm^(2)](P<0.05).Conclusion:There is a proper distance between two feet for convalescent stroke patients,in which their static standing balance is the most stable.