目的对鼻咽癌放疗后吞咽障碍患者分别实施Shaker训练和下颏抗阻力(chin tuck against resistance,CTAR)训练,分析三种训练对患者的影响。方法选择2017年2月—2019年2月厦门大学附属第一医院收治的84例鼻咽癌内镜手术后化疗患者为研究对...目的对鼻咽癌放疗后吞咽障碍患者分别实施Shaker训练和下颏抗阻力(chin tuck against resistance,CTAR)训练,分析三种训练对患者的影响。方法选择2017年2月—2019年2月厦门大学附属第一医院收治的84例鼻咽癌内镜手术后化疗患者为研究对象,按随机数字表法将患者分为对照组、Shaker组以及CTAR练组,每组各28例。三组均进行常规吞咽训练,Shaker组联合Shaker训练,CTAR组联合CTAR训练。分析三组患者吞咽能力、日常生活质量、康复治疗效果以及并发症情况。结果干预前三组患者电视透视检查(video fluoroscopy swallowing study,VFSS)评级、功能性经口摄食量表(functional oral intake scale,FOIS)评级以及吞咽障碍特异性生活质量量表(swallowing-quality of life,SWAL-QOL)评分比较,差异无统计学意义(P>0.05)。干预后Shaker组和CTAR组患者VFSS评分低于对照组,FOIS和SWAL-QOL评分高于对照组,差异有统计学意义(P<0.05)。Shaker组和CTAR组之间各评分比较,差异无统计学意义(P>0.05)。对照组患者治疗总有效率为71.43%,Shaker组患者治疗总有效率为92.86%,CTAR组患者治疗总有效率为96.43%。对照组的治疗有效率明显低于Shaker组和CTAR组,差异有统计学意义(P<0.05)。Shaker组和CTAR组治疗总有效率比较,差异无统计学意义(P>0.05)。对照组、Shaker组以及CTAR组并发症发生率分别为32.14%、7.14%以及3.57%。对照组明显高于Shaker组和CTAR组,差异有统计学意义(P<0.05);Shaker组与CTAR组比较,差异无统计学意义(P>0.05)。结论Shaker和CTAR训练均能有效缓解鼻咽癌放疗后患者的吞咽障碍症状,提高摄食功能,并发症较少,改善患者预后。展开更多
In the history of human space exploration, many failures of launch vehicles and spacecraft tare caused by vibration. At first, the periods in which the space products are in a vibration environment are discussed and t...In the history of human space exploration, many failures of launch vehicles and spacecraft tare caused by vibration. At first, the periods in which the space products are in a vibration environment are discussed and the need for vibration testing is then introduced. As the main content of this paper, the current situation of shaker systems is elaborated in detail. In this part, electrodynamic shakers, as the most widely used vibration generators, are illustrated in detail including structures, principles and performances. Special inventions worldwide in the development of electrodynamic shakers such as induction ring shakers, high force shakers, multi-axial vibration testing systems and combined environmental testing systems are presented. At last, the recent progress and outlook of shaker systems are summarized.展开更多
By means of Delta-function & unit step function to express the force of solid particle on plane inertial shaker's screen, an mathematical model of the differential equation type was set up and solved. Accordin...By means of Delta-function & unit step function to express the force of solid particle on plane inertial shaker's screen, an mathematical model of the differential equation type was set up and solved. According to analysis of the solution, the relation is given between the throw period & displacement with the parameters of shaker design & solid particle. The method of numerical value calculation & analysis for the relation is given too.展开更多
文摘In the history of human space exploration, many failures of launch vehicles and spacecraft tare caused by vibration. At first, the periods in which the space products are in a vibration environment are discussed and the need for vibration testing is then introduced. As the main content of this paper, the current situation of shaker systems is elaborated in detail. In this part, electrodynamic shakers, as the most widely used vibration generators, are illustrated in detail including structures, principles and performances. Special inventions worldwide in the development of electrodynamic shakers such as induction ring shakers, high force shakers, multi-axial vibration testing systems and combined environmental testing systems are presented. At last, the recent progress and outlook of shaker systems are summarized.
文摘By means of Delta-function & unit step function to express the force of solid particle on plane inertial shaker's screen, an mathematical model of the differential equation type was set up and solved. According to analysis of the solution, the relation is given between the throw period & displacement with the parameters of shaker design & solid particle. The method of numerical value calculation & analysis for the relation is given too.
