目的探讨非特异性慢性腰痛(chronic Non-specific low back pain,CNSLBP)患者姿势控制的性别差异。方法选择2017年1月~2018年12月在本院就诊的113例CNSLBP患者,采用Neuro Com平衡测训系统检测患者姿势控制,观察男性和女性患者稳定极限(l...目的探讨非特异性慢性腰痛(chronic Non-specific low back pain,CNSLBP)患者姿势控制的性别差异。方法选择2017年1月~2018年12月在本院就诊的113例CNSLBP患者,采用Neuro Com平衡测训系统检测患者姿势控制,观察男性和女性患者稳定极限(limit of stability,LOS)、单脚站立测试(Unilateral Stance,US)、平衡感觉统合测试临床改良版(modified Clinical Test of Sensory Interaction on Balance,mCTSIB)参数,采用Spearman相关性分析观察LOS、US、mCTSIB参数与男、女患者静息疼痛视觉模拟评分(Visual Analogue Score,VAS)、活动VAS、Tampa恐惧运动量表(Tampa Scale for Kinesiophobia,TSK)评分和Oswestry功能障碍指数(Oswestry dysfunction index,ODI)的相关性。结果 LOS参数结果显示,男性患者反应时间低于女性,运动速度、终点偏移、最大偏移高于女性,差异有统计学意义(P<0.05),二者方向控制无显著差异(P>0.05);US参数结果显示:女性和男性患者闭眼和睁眼状态下左脚和右脚站立测试重心移动速度均无显著差异(P>0.05);mCTSIB参数结果显示,女性和男性患者T1、T2、T3、T4状态下重心移动速度均无显著差异(P>0.05);相关性分析结果显示,男性静息VAS、运动VAS、TSK、ODI与LOS参数均无相关性(P>0.05);女性静息VAS评分、ODI与LOS参数均无相关性(P>0.05);女性运动VAS、TSK与反应时间呈正相关(P<0.05),与运动速度、终点偏移、最大偏移呈负相关(P<0.05),与方向控制不存在相关性(P>0.05);男性、女性患者静息VAS、运动VAS、TSK、ODI与LOS参数和mCTSIB参数均不存在相关性(P>0.05)。结论 CNSLBP患者静息姿势控制与性别因素无关,女性CNSLBP患者的动态姿势控制能力较差,对女性CNSLBP制订康复方案时应重视改善患者动态姿势控制的方法。展开更多
Asymmetric blockage of drainage systems occasionally occurs,which seriously threatens the safety of tunnel operation.Based on theoretical analysis,a calculation expression of tunnel water inflow involving clogging par...Asymmetric blockage of drainage systems occasionally occurs,which seriously threatens the safety of tunnel operation.Based on theoretical analysis,a calculation expression of tunnel water inflow involving clogging parameters was derived.Degradation of the analytical solution was analysed with the Taylor equation and series expansion theorem,and a tunnel under construction was considered to conduct field tests to verify the rationality of the established model and correctness of the derived expression.Studies have demonstrated that with increasing drainage system blockage degree,the amount of water inflow in the nonblocked area slowly increases,and the total amount of water in the tunnel gradually decreases.The hydrodynamic pressure in the blocked area non-linearly decreased,and the water inrush velocity and hydraulic gradient in the non-blocked area gradually increased.When the drainage system was not blocked,the result of tunnel water inflow calculated by the formula derived in this paper was 8.3% higher than the measured value.When the drainage system was blocked,the theoretical water inflow was 10.5% higher than the measured value.The difference between the measured value and the theoretical value is small,which verifies the effectiveness of the calculation formula of water inflow deduced in this paper.展开更多
文摘目的探讨非特异性慢性腰痛(chronic Non-specific low back pain,CNSLBP)患者姿势控制的性别差异。方法选择2017年1月~2018年12月在本院就诊的113例CNSLBP患者,采用Neuro Com平衡测训系统检测患者姿势控制,观察男性和女性患者稳定极限(limit of stability,LOS)、单脚站立测试(Unilateral Stance,US)、平衡感觉统合测试临床改良版(modified Clinical Test of Sensory Interaction on Balance,mCTSIB)参数,采用Spearman相关性分析观察LOS、US、mCTSIB参数与男、女患者静息疼痛视觉模拟评分(Visual Analogue Score,VAS)、活动VAS、Tampa恐惧运动量表(Tampa Scale for Kinesiophobia,TSK)评分和Oswestry功能障碍指数(Oswestry dysfunction index,ODI)的相关性。结果 LOS参数结果显示,男性患者反应时间低于女性,运动速度、终点偏移、最大偏移高于女性,差异有统计学意义(P<0.05),二者方向控制无显著差异(P>0.05);US参数结果显示:女性和男性患者闭眼和睁眼状态下左脚和右脚站立测试重心移动速度均无显著差异(P>0.05);mCTSIB参数结果显示,女性和男性患者T1、T2、T3、T4状态下重心移动速度均无显著差异(P>0.05);相关性分析结果显示,男性静息VAS、运动VAS、TSK、ODI与LOS参数均无相关性(P>0.05);女性静息VAS评分、ODI与LOS参数均无相关性(P>0.05);女性运动VAS、TSK与反应时间呈正相关(P<0.05),与运动速度、终点偏移、最大偏移呈负相关(P<0.05),与方向控制不存在相关性(P>0.05);男性、女性患者静息VAS、运动VAS、TSK、ODI与LOS参数和mCTSIB参数均不存在相关性(P>0.05)。结论 CNSLBP患者静息姿势控制与性别因素无关,女性CNSLBP患者的动态姿势控制能力较差,对女性CNSLBP制订康复方案时应重视改善患者动态姿势控制的方法。
基金sponsored by the Research Project on the Damage Mechanism and Performance Recovery of Carbon Phyllite in the Basement of HighSpeed Railway Tunnels in Cold Regions(51978668)the Key Technology of Green Construction of the Hongtu Extra Tunnel(DFH(201904)ys1-001)。
文摘Asymmetric blockage of drainage systems occasionally occurs,which seriously threatens the safety of tunnel operation.Based on theoretical analysis,a calculation expression of tunnel water inflow involving clogging parameters was derived.Degradation of the analytical solution was analysed with the Taylor equation and series expansion theorem,and a tunnel under construction was considered to conduct field tests to verify the rationality of the established model and correctness of the derived expression.Studies have demonstrated that with increasing drainage system blockage degree,the amount of water inflow in the nonblocked area slowly increases,and the total amount of water in the tunnel gradually decreases.The hydrodynamic pressure in the blocked area non-linearly decreased,and the water inrush velocity and hydraulic gradient in the non-blocked area gradually increased.When the drainage system was not blocked,the result of tunnel water inflow calculated by the formula derived in this paper was 8.3% higher than the measured value.When the drainage system was blocked,the theoretical water inflow was 10.5% higher than the measured value.The difference between the measured value and the theoretical value is small,which verifies the effectiveness of the calculation formula of water inflow deduced in this paper.
