目的:评估脑卒中后偏瘫患者心肺运动功能,了解偏瘫患者心肺功能储备能力,探寻脑卒中偏瘫患者有氧运动康复方案。方法:选取11例脑卒中后偏瘫患者(实验组)和11例健康志愿者(对照组)进行心肺运动实验测试,比较两组受试对象心肺运动实验各...目的:评估脑卒中后偏瘫患者心肺运动功能,了解偏瘫患者心肺功能储备能力,探寻脑卒中偏瘫患者有氧运动康复方案。方法:选取11例脑卒中后偏瘫患者(实验组)和11例健康志愿者(对照组)进行心肺运动实验测试,比较两组受试对象心肺运动实验各指标差异。结果:两组受试对象性别、年龄、体重指数等基础指标差异无显著性。实验组峰值摄氧量(13.1±3.2 vs 22.3±6.6ml/kg/min)、无氧阈(11.2±2.9 vs 15.5±3.6ml/kg/min)、能量代谢当量(3.7±0.9 vs 6.4±1.9)、峰值氧脉搏(7.7±2.0 vs11.2±2.5ml)、峰值呼吸交换率(0.98±0.08 vs 1.15±0.11)、峰值分钟通气量(30.9±8.5 vs 55.7±17.7L/min)、峰值功率(72.5±18.8 vs 118.8±46.8w)与最大心率(117.9±14.7 vs 135.1±20.4bpm)明显低于对照组(P<0.05),静息心率(81.6±11.5 vs 72.5±4.9bpm)明显高于对照组(P<0.05)。实验组静息血压与峰值血压与对照组比较无显著性差异(P>0.05)。结论:脑卒中偏瘫患者心肺运动功能明显低于健康人,心肺储备功能下降,脑卒中偏瘫患者的康复过程中有必要给予一定强度的有氧运动,以改善心肺运动功能,预防卒中再发和提高运动功能。展开更多
The Suzhou Creek Sluice is currently the largest underwater plain gate in the world, with a single span of 100 m. It is located in a tidal estuary at the junction of the Huangpu River and Suzhou Creek in Shanghai, Chi...The Suzhou Creek Sluice is currently the largest underwater plain gate in the world, with a single span of 100 m. It is located in a tidal estuary at the junction of the Huangpu River and Suzhou Creek in Shanghai, China. In this study, physical and 2D vertical mathematical models were used to investigate and distinguish the mechanism of siltation downstream of an underwater plain gate from that of other gates types. According to quantitative data obtained by site investigation and the application of the physical hydrodynamic models, it was found that the characteristics of the tidal estuary as well as the fact that the sluice span is equal to the creek width are the major reasons contributing to siltation. A possible desiltation treatment system is proposed for the underwater plain gate. The system includes selection of a suitable location that allows the determination of a reasonable top elevation of the sluice floor, reserving sufficient space under the gate to accommodate siltation, setting up a mechanical desiltation system, and flushing silt along with overflow over the top of the gate. Furthermore, on-site hydraulic silt flushing experiments and a topography survey were conducted. These results showed that the measurement system is effective, and by maintaining this scheduled operation once a month, the downstream riverbed has been maintained in a good condition.展开更多
文摘目的:评估脑卒中后偏瘫患者心肺运动功能,了解偏瘫患者心肺功能储备能力,探寻脑卒中偏瘫患者有氧运动康复方案。方法:选取11例脑卒中后偏瘫患者(实验组)和11例健康志愿者(对照组)进行心肺运动实验测试,比较两组受试对象心肺运动实验各指标差异。结果:两组受试对象性别、年龄、体重指数等基础指标差异无显著性。实验组峰值摄氧量(13.1±3.2 vs 22.3±6.6ml/kg/min)、无氧阈(11.2±2.9 vs 15.5±3.6ml/kg/min)、能量代谢当量(3.7±0.9 vs 6.4±1.9)、峰值氧脉搏(7.7±2.0 vs11.2±2.5ml)、峰值呼吸交换率(0.98±0.08 vs 1.15±0.11)、峰值分钟通气量(30.9±8.5 vs 55.7±17.7L/min)、峰值功率(72.5±18.8 vs 118.8±46.8w)与最大心率(117.9±14.7 vs 135.1±20.4bpm)明显低于对照组(P<0.05),静息心率(81.6±11.5 vs 72.5±4.9bpm)明显高于对照组(P<0.05)。实验组静息血压与峰值血压与对照组比较无显著性差异(P>0.05)。结论:脑卒中偏瘫患者心肺运动功能明显低于健康人,心肺储备功能下降,脑卒中偏瘫患者的康复过程中有必要给予一定强度的有氧运动,以改善心肺运动功能,预防卒中再发和提高运动功能。
文摘The Suzhou Creek Sluice is currently the largest underwater plain gate in the world, with a single span of 100 m. It is located in a tidal estuary at the junction of the Huangpu River and Suzhou Creek in Shanghai, China. In this study, physical and 2D vertical mathematical models were used to investigate and distinguish the mechanism of siltation downstream of an underwater plain gate from that of other gates types. According to quantitative data obtained by site investigation and the application of the physical hydrodynamic models, it was found that the characteristics of the tidal estuary as well as the fact that the sluice span is equal to the creek width are the major reasons contributing to siltation. A possible desiltation treatment system is proposed for the underwater plain gate. The system includes selection of a suitable location that allows the determination of a reasonable top elevation of the sluice floor, reserving sufficient space under the gate to accommodate siltation, setting up a mechanical desiltation system, and flushing silt along with overflow over the top of the gate. Furthermore, on-site hydraulic silt flushing experiments and a topography survey were conducted. These results showed that the measurement system is effective, and by maintaining this scheduled operation once a month, the downstream riverbed has been maintained in a good condition.
