Heavy metal contamination in soils has been of wide concern in China in the last several decades. The heavy metal contamination was caused by sewage irrigation, mining and inappropriate utilization of various agrochem...Heavy metal contamination in soils has been of wide concern in China in the last several decades. The heavy metal contamination was caused by sewage irrigation, mining and inappropriate utilization of various agrochemicals and pesticides and so on. The Shenyang Zhangshi irrigation area （SZIA） in China is a representative area of heavy metal contamination of soils resulting from sewage irrigation for about 30 years duration. This study investigated the spatial distribution and temporal variation of soil cadmium contamination in the SZIA. The soil samples were collected from the SZIA in 1990 and 2004; Cd of soils was analyzed and then the spatial distribution and temporal variation of Cd in soils was modelled using kriging methods. The kriging map showed that long-term sewage irrigation had caused serious Cd contamination in topsoil and subsoil. In 2004, the Cd mean concentrations were 1.698 and 0.741 mg/kg, and the maxima 10.150 and 7.567 mg/kg in topsoils （0-20 cm） and subsoils （20-40 cm） respectively. These values are markedly more than the Cd levels in the second grade soil standard in China. In 1990, the Cd means were 1.023 and 0.331 mg/kg, and the maxima 9.400 and 3.156 mg/kg, in topsoils and subsoils respectively. The soil area in 1990 with Cd more than 1.5 mg/kg was 2701 and 206.4 hnl2 in topsoils and subsoils respectively; and in 2004, it was 7592 and 1583 hm^2, respectively. Compared with that in 1990, the mean and maximum concentration of Cd, as well as the soil area with Cd more than 1.5 mg/kg had all increased in 2004, both in topsoils and subsoils.展开更多
目的探讨本体觉促进训练对前交叉韧带重建术后患者膝关节功能及姿势控制的影响。方法 2017年3月至2018年9月,前交叉韧带重建术后患者30例于术后8周进行常规康复训练,第9周随机分成对照组(n=15)和试验组(n=15)。对照组继续进行常规康复训...目的探讨本体觉促进训练对前交叉韧带重建术后患者膝关节功能及姿势控制的影响。方法 2017年3月至2018年9月,前交叉韧带重建术后患者30例于术后8周进行常规康复训练,第9周随机分成对照组(n=15)和试验组(n=15)。对照组继续进行常规康复训练,试验组在常规康复的基础上联合本体觉促进训练;治疗第8周和第16周采用膝关节Lysholm评分、多关节等速肌力测试及训练系统,以及平衡测试仪进行测试。结果治疗后,两组Lysholm评分显著提高(t> 16.687, P <0.001),患侧膝关节15°、45°、75°角度再现差值降低(t> 2.433, P <0.05),闭眼稳定平面、闭眼泡沫平面下重心摆动速度降低(t> 2.444, P <0.05);试验组Lysolm评分高于对照组(t=4.150, P <0.05),15°、45°角度再现差值低于对照组(t> 2.710, P <0.05),闭眼泡沫平面下重心摆动速度低于对照组(P <0.05)。结论本体觉促进训练能进一步改善前交叉韧带重建术后患者本体觉功能,提高膝关节功能和姿势控制能力。展开更多
[目的]探讨运动控制训练对髋关节撞击综合征的影响。[方法] 2017年5月—2022年7月45例髋关节撞击综合征患者按照随机数字表法分为两组。其中,23例在常规基础上增加运动控制训练,22例仅行常规康复训练。比较两组治疗期情况及随访结果。[...[目的]探讨运动控制训练对髋关节撞击综合征的影响。[方法] 2017年5月—2022年7月45例髋关节撞击综合征患者按照随机数字表法分为两组。其中,23例在常规基础上增加运动控制训练,22例仅行常规康复训练。比较两组治疗期情况及随访结果。[结果]两组治疗周期、治疗次数、治疗顺应性VAS评分的差异无统计学意义(P>0.05)。随访时间平均(8.2±3.1)个月。随时间推移,两组疼痛VAS评分、屈髋肌力、伸髋肌力均显著改善(P<0.05);两组的Harris评分和SEBT评分均改善,训练组的改善有统计学意义(P<0.05),而常规组的变化无统计学意义(P>0.05)。末次随访时,训练组VAS评分[(2.2±1.0)vs (3.5±1.0), P<0.05]、Harris评分[(79.4±6.9) vs (65.2±6.2), P<0.05]、屈髋肌力[(44.8±9.1)Nm vs (35.9±8.2)Nm, P<0.05]、伸髋肌力[(68.4±6.7)Nm vs (56.3±7.0)Nm, P<0.05]和SEBT评分[(92.2±14.2) vs (81.6±17.0), P<0.05]均显著优于常规组。[结论]运动控制训练可以有效缓解髋关节撞击综合征患者的疼痛症状,增加髋关节肌肉力量及协调能力,提高髋关节整体稳定性。展开更多
基金The National Natural Science Foundation of China (No. 20477029)the National Basic Research Program (973) of China (No.2004CB418506)the Basic Research Program of Educational Department of Liaoning Government (No. 05L262)
文摘Heavy metal contamination in soils has been of wide concern in China in the last several decades. The heavy metal contamination was caused by sewage irrigation, mining and inappropriate utilization of various agrochemicals and pesticides and so on. The Shenyang Zhangshi irrigation area （SZIA） in China is a representative area of heavy metal contamination of soils resulting from sewage irrigation for about 30 years duration. This study investigated the spatial distribution and temporal variation of soil cadmium contamination in the SZIA. The soil samples were collected from the SZIA in 1990 and 2004; Cd of soils was analyzed and then the spatial distribution and temporal variation of Cd in soils was modelled using kriging methods. The kriging map showed that long-term sewage irrigation had caused serious Cd contamination in topsoil and subsoil. In 2004, the Cd mean concentrations were 1.698 and 0.741 mg/kg, and the maxima 10.150 and 7.567 mg/kg in topsoils （0-20 cm） and subsoils （20-40 cm） respectively. These values are markedly more than the Cd levels in the second grade soil standard in China. In 1990, the Cd means were 1.023 and 0.331 mg/kg, and the maxima 9.400 and 3.156 mg/kg, in topsoils and subsoils respectively. The soil area in 1990 with Cd more than 1.5 mg/kg was 2701 and 206.4 hnl2 in topsoils and subsoils respectively; and in 2004, it was 7592 and 1583 hm^2, respectively. Compared with that in 1990, the mean and maximum concentration of Cd, as well as the soil area with Cd more than 1.5 mg/kg had all increased in 2004, both in topsoils and subsoils.
文摘目的探讨本体觉促进训练对前交叉韧带重建术后患者膝关节功能及姿势控制的影响。方法 2017年3月至2018年9月,前交叉韧带重建术后患者30例于术后8周进行常规康复训练,第9周随机分成对照组(n=15)和试验组(n=15)。对照组继续进行常规康复训练,试验组在常规康复的基础上联合本体觉促进训练;治疗第8周和第16周采用膝关节Lysholm评分、多关节等速肌力测试及训练系统,以及平衡测试仪进行测试。结果治疗后,两组Lysholm评分显著提高(t> 16.687, P <0.001),患侧膝关节15°、45°、75°角度再现差值降低(t> 2.433, P <0.05),闭眼稳定平面、闭眼泡沫平面下重心摆动速度降低(t> 2.444, P <0.05);试验组Lysolm评分高于对照组(t=4.150, P <0.05),15°、45°角度再现差值低于对照组(t> 2.710, P <0.05),闭眼泡沫平面下重心摆动速度低于对照组(P <0.05)。结论本体觉促进训练能进一步改善前交叉韧带重建术后患者本体觉功能,提高膝关节功能和姿势控制能力。
文摘[目的]探讨运动控制训练对髋关节撞击综合征的影响。[方法] 2017年5月—2022年7月45例髋关节撞击综合征患者按照随机数字表法分为两组。其中,23例在常规基础上增加运动控制训练,22例仅行常规康复训练。比较两组治疗期情况及随访结果。[结果]两组治疗周期、治疗次数、治疗顺应性VAS评分的差异无统计学意义(P>0.05)。随访时间平均(8.2±3.1)个月。随时间推移,两组疼痛VAS评分、屈髋肌力、伸髋肌力均显著改善(P<0.05);两组的Harris评分和SEBT评分均改善,训练组的改善有统计学意义(P<0.05),而常规组的变化无统计学意义(P>0.05)。末次随访时,训练组VAS评分[(2.2±1.0)vs (3.5±1.0), P<0.05]、Harris评分[(79.4±6.9) vs (65.2±6.2), P<0.05]、屈髋肌力[(44.8±9.1)Nm vs (35.9±8.2)Nm, P<0.05]、伸髋肌力[(68.4±6.7)Nm vs (56.3±7.0)Nm, P<0.05]和SEBT评分[(92.2±14.2) vs (81.6±17.0), P<0.05]均显著优于常规组。[结论]运动控制训练可以有效缓解髋关节撞击综合征患者的疼痛症状,增加髋关节肌肉力量及协调能力,提高髋关节整体稳定性。
