Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《BEIJING BIOMEDICAL ENGINEERING》 2000-03
Add to Favorite Get Latest Update

A Study on Cardiac Contractility Variability

Liu Guochuan,Xiao Shouzhong (College of Bioengineering,Chongqing University,Chonqing\ 400044)  
To find the rules of cardiac contractility variability(CCV),and to evaluate its clinical application,the influence of three factors(respiration,exercise,and psychological activity)on the cardiac contractility was measured and analyzed.The change of the amplitude of the first heart sound(S1)was used as an index for evaluating the change of the cardiac contractility.The results show that the amplitude of the first heart sound has a very sensitive response to the respiration and exercise.Especially,the exercise has a very strong influence to the cardiac contractility.The S1s are of continuously varying amplitude.Cardiac contractility variability has obvious rules:(1)During test of deep breath of exercise,there was a cyclic rise and fall(crescendo\|decrescendo) of S1 amplitude in each respiratory cycle;(2)During breath holding,there was also a cyclic rise and fall (crescendo\|decrescendo) of S1 amplitude,but obviously,it was not related to respiratory cycle.CCV of healthy subjects was significantly different from that of patients with heart or lung disease.In addition,a few subjects exhibited changes after psychological stress test:an increase of both S1 amplitude and heart rate.Analyzing the rules of S1 variability and cardiac contractility variability may have practical linical value.It is worth to study further.\;
【CateGory Index】: R540.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 1 Hits
1 Bu Bin1,2 Wang Aihua3 Han Haijun2 Xiao Shouzhong41 (Department of Sports Medicine,Chengdu Sport University,Chengdu 610041,China)2 (Institute of Exercise and Sports Science,Sichuan University,Chengdu 610064,China)3 (West China Hospital,Sichuan University,Chengdu 610041,China)4 (Institute of Bio-medical Engineering,Chongqing University,Chongqing 400044,China);A Basis for Application of Cardiac Contractility Variability in the Evaluation and Assessment of Exercise and Fitness[J];Journal of Biomedical Engineering;2010-03
【Co-citations】
Chinese Journal Full-text Database 7 Hits
1 Yang Wenqin, Zhang Wenyu, Wen Bin , Xiao Shouzhong  (The Ninth Reople's Hospital of Chongqing, Chongqing\ 400700) (Bo\|Jing Medical Informatics Institute,Chongqing\ 400044);An Analysis of Sensitivity and Specificity of the Phonocardiogram Exercise Test[J];BEIJING BIOMEDICAL ENGINEERING;2000-02
2 Liu Guochuan;Xiao Shouzhong Department of Biomedical Engineering, College of Bioengineering, Chongqing University, Chongqing 400044 Intellectual Engeneering Lab, Chongqing University, Chongqing 400044;The Study of a New Method of Evaluation of Cardiac Reserve in Undergraduates[J];Biomedical Engineering and Clinical Medicine;2000-01
3 Liu Guochuan 1\ Xiao Shouzhong 1\ Jin Ping 2\ Tian Xuelong 1 1 (College of Bioengineer, Chongqing University, Chongqing\ 400044) 2 (Scientific Research Division, Chongqing University, Chongqing\ 400044);An Analysis of Precision and Accuracy of the Phonocardiogram Exercise Test[J];JOURNAL OF BIOMEDICAL ENGINEERING;2000-03
4 Liu Guochuan 1 Tian Xuelong 1 Zhu Binglian 2 Xiao Shouzhong 1 Wang Tianxing 1 1(Key Lab for Biomechanics & Tissue Engineering under the State Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400030, China) 2(College of Communication Engineering, Chongqing University, Chongqing 400030, China);The Development of a New System for Detecting and Evaluating Cardiac Contractility[J];Chinese Journal of Scientific Instrument;2003-02
5 Guo Xingming1, Guo Weizhen1, Zhou Chengwen1, Xiao Shouzhong1,2 (1 College of Bioengineering, Chongqing University, Chongqing 400044, China; 2 Bo-Jing Medical Informatics Institute, Chongqing 400044, China);Study on noninvasive cardiac reserve monitoring system[J];Chinese Journal of Scientific Instrument;2008-04
6 GE Ping,et al(Department of Cardiology,Chongqing Eighth Hospital);Clinical study on evaluating the function of cardiac reserve in hypertensive patients with noninvasive techniques[J];Journal of Chongqing Medical University;2009-06
7 LIU Guo chuan,TIAN Xue long,XIAO Shou zhong College of Bioengineering,Chongqing University;An Analysis of S/N Ratio of the Phonocardiogram Exercise Test[J];CHINESE JOURNAL OF MEDICAL INSTRUMEN TATION;2000-05
China Proceedings of conference Full-text Database 1 Hits
1 Cao Zhongping Wei Ming Yan Hong (Astronaut Research and training center of China Beijing 100193 China);A Primary study of Cardiac Reserve Based on Heart Soundsignals in Spaceflight Condition[A];[C];2008
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 MIN Dong, TIAN Xihui, YANG Chunmei, DING Beisheng, WANG Baikun Dept. of Biomedical Engineering, Tianjin University, Tianjin\ 300072;The Research on Methods for Analysing the Spectrum of HRV Signal[J];Beijing Biomedical Engineering;2001-04
2 FANG 1 Xianglin,GUO Xingming 1,PENG Chenglin 1,ZHAN Zhifu 2,XIAO Shouzhong 1 (1 Bioengineering College,Chongqing University,Chongqing\ 400044,China;2.Bo Jing Medicine and Information Engineering Institute,Chongqing\ 400044,China).;A Study on Effect of Exercise and Breathing on Heart Rate and Amplitude of Heart Sound[J];Beijing Biomedical Engineering;2002-02
3 XIAO Shouzhong\+\{1,2\}, FANG Xianglin, SUN Xiaobo\+2. 1 Biomedical Engineering Department,Chongqing University, Chongqing\ 400044; 2 Bo\|Jing Medicine and Information Engineering Institute,Chongqing\ 400044;An Investigation on the Influence of Three Factors on Heart Rate Variability[J];Beijing Biomedical Engineering;2002-04
4 QUAN Haiyan, WANG Weilian. Department of Information & Electronics Science, information College, Yunnan University, 650091;Extraction of the First and the Second Heart Sounds Based on Multi-resolution Analysis of Wavelet Transform[J];Beijing Biomedical Engineering;2004-01
5  Meng Yan,Shao Qingyu,Zhang Yuhua,Li Xin,Li Qiao (Dept.of Biomedical Engineering,Shandong Medical University,Jinan\ 250012);Design of Multi application ECG and PCG Signal Sampling System[J];BEIJING BIOMEDICAL ENGINEERING;1998-03
6 WANG Hai-Bin,CHEN Xin-Gen and DONGDepartment of Biomedical Electronic EngineeringDepartment of Electronic Engineering,The Northwest Industrial University;Analysis of PCG characteristic vector recognition[J];Journal of The Fourth Military Medical University;1993-03
7 Qin Long et al;A MSP430F149 Microprocessor Based System for Collecting Storing and Transmitting ECG Signal[J];Industrial Control Computer;2005-07
8 ZHU Kang li, WANG Xiao mei (Hospital of Hefei University of Technology, Hefei 230009, China);Apparent and seeming error removing based on ECG signals in wavelet transformation[J];JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE);1999-04
9 SUN Jing xia, BAI Yan qiang.Address reprint requests to: SUN Jing xia. Institute of Space Medico Engineering, Beijing 100094,China;Research Progress of Methods of Heart Rate Variability analysis[J];Space Medicine & Medical Engineering;2001-03
10 CHEN Pei jun,CHEN Shi gui,YU Yao rong,LIU Xiang xin. Institute of Space Medico Engineering, Beijing 100094, China;Detecting Characteristic Points of ECG Signals with Binomial Wavelet[J];Space Medicine & Medical Engineering;2004-01
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved