Browsing by Author "Wang Lu"

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Browsing by Author "Wang Lu"

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  • The Absence Of Pathological Myofibre Disarray In The Diabetic Heart: Is It A Paradox? 
    Mclachlan Constance; Lasker S; Ali Smk; Wang Lu; Jelinek H (Acta Cardiologica, 2009)
    Myofibre disarray in progressive hypertrophic cardiomyopathy (HCM) is a well established pathological cardiac tissue change and thereby represents a biomarker for that condition. On the other hand, in diabetic cardiomyopathy, ...
  • Analysis of orientation error of triaxial accelerometers on the assessment of energy expenditure 
    Wang Lu; Su Steven; Celler Branko; Ambikairajah E. (IEEE, 2005)
    This paper investigates the effects of orientation error in the positioning of triaxial accelerometers on the assessment of energy expenditure. Four subjects walked on a treadmill at varying velocities ranging from 4km.h-1 ...
  • Assessing the human cardiovascular response to moderate exercise 
    Wang Lu; Su Steven; Celler Branko; Chan Gregory; Cheng Teddy; Savkin Andrey (IOP Publishing, 2009)
    This study aims to quantitatively describe the steady-state relationships among percentage changes in key central cardiovascular variables (i.e. stroke volume, heart rate (HR), total peripheral resistance and cardiac ...
  • Cardiovascular response identification based on nonlinear support vector regression 
    Wang Lu; Su Steven; Chan Gregory; Celler Branko; Cheng Teddy; Savkin Andrey (Biomedical Engineering Systems and Technologies/Springer, 2008)
  • Estimation of Oxygen Consumption for Moderate Exercises by Using a Hammerstein Model 
    Su Steven; Wang Lu; Celler Branko; Savkin Andrey (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2006)
    This paper aims to establish block-structured nonlinear model (Hammerstein model) to predict oxygen uptake during moderate treadmill exercises. In order to model the steady state relationship between oxygen uptake (oxygen ...
  • Estimation of walking energy expenditure by using Support Vector Regression 
    Su Steven; Wang Lu; Celler Branko; Savkin Andrey; Ambikairajah E. (IEEE, 2005)
    This paper develops a new predictor of walking energy expenditure from wireless measurements of body movements using triaxial accelerometers. Reliable data were collected from repeated walking experiments in different ...
  • Heart rate control during treadmill exercise 
    Su Steven; Wang Lu; Celler Branko; Savkin Andrey (IEEE, 2005)
    A computer-controlled treadmill and related data collection and processing systems have been developed for the control of heart rate during treadmill exercise. Minimizing deviations of heart rate from a preset profile is ...
  • Heart Rate Regulation During Exercise with Various Loads: Identification and Nonlinear H infinity Control 
    Cheng Teddy; Savkin Andrey; Celler Branko; Su Steven; Wang Lu (2008 IFAC, 2008)
    A model for the heart rate response to treadmill walking exercise is proposed in this paper. The parameters of the model were experimentally identified which involved subjects walking at different speeds. A 2-degree-of-freedom ...
  • Identification and Control for Heart Rate Regulation during Treadmill Exercise 
    Su Steven; Wang Lu; Celler Branko; Savkin Andrey; Guo Ying (Institute of Electrical and Electronics Engineers, 2007)
    This paper proposes a novel integrated approach for the identification and control of Hammerstein systems to achieve desired heart rate profile tracking performance for an automated treadmill system. For the identification ...
  • A Mathematical Model of the Cardiovascular System under Exercise 
    Wang Lu; Su Steven; Chan G.S.H.; Celler Branko (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2007)
    A mathematical model, based on our previous pulsatile nonlinear multi-element cardiovascular model, was tested and improved to study cardiovascular response under graded exercise levels. Ten healthy subjects were ...
  • Modeling of a gas concentration measurement system 
    Wang Lu; Su Steven; Celler Branko; Savkin Andrey (IEEE, 2005)
    Energy expenditure can be calculated via measurement of oxygen consumption and carbon dioxide production. Precise measurement of expired gas concentrations and volume is required for this determination. For a given gas ...
  • Modelling and Control for Heart Rate Regulation during Treadmill Exercise 
    Wang Lu; Celler Branko; Su Steven; Savkin Andrey; Guo Ying (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2006)
    This paper proposes a novel integrated approach for the identification and control of Hammerstein systems to achieve desired heart rate tracking performance for an automated treadmill system. The pseudo-random binary ...
  • A nonlinear dynamic model for heart rate response to treadmill walking exercise 
    Savkin Andrey; Celler Branko; Cheng Teddy; Wang Lu; Su Steven (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2007)
    A dynamic model of the heart rate response to treadmill walking exercise is presented. The model is a feedback interconnected system; the subsystem in the forward path represents the neural response to exercise, while ...
  • Nonlinear Modeling and Control of Human Heart Rate Response During Exercise With Various Work Load Intensities 
    Cheng Teddy; Savkin Andrey; Celler Branko; Su Steven; Wang Lu (IEEE-Inst Electrical Electronics Engineers Inc, 2008)
    The first objective of this paper is to introduce a nonlinear system to model the heart rate (HR) response during and after treadmill walking exercise. The model is a feedback interconnected system that has components to ...
  • Nonlinear modeling of cardiovascular response to exercise 
    Wang Lu; Su Steven; Chan Gregory; Celler Branko; Cheng Teddy; Savkin Andrey (Institute for Systems and Technologies of Information, 2008)
  • Nonlinear modelling and control of heart rate response to treadmill walking exercise 
    Cheng Teddy; Savkin Andrey; Celler Branko; Su Steven; Wang Lu (Institute for Systems and Technologies of Information, 2008)
    In this study, a nonlinear system was developed for the modelling of the heart rate response to treadmill walking exercise. The model is a feedback interconnected system which can represent the neural response and peripheral ...
  • Nonparametric Hammerstein Model Based Model Predictive Control for Heart Rate Regulation 
    Su Steven; Huang Shoudong; Wang Lu; Celler Branko; Savkin Andrey; Guo Ying; Cheng Teddy (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2007)
    This paper proposed a novel nonparametric model based model predictive control approach for the regulation of heart rate during treadmill exercise. As the model structure of human cardiovascular system is often hard to ...
  • Optimizing Heart Rate Regulation For Safe Exercise 
    Su Steven; Huang Shoudong; Wang Lu; Celler Branko; Savkin Andrey; Guo Ying; Cheng Teddy (Springer, 2010)
    Safe exercise protocols are critical for effective rehabilitation programs. This paper aims to develop a novel control strategy for an automated treadmill system to reduce the danger of injury during cardiac rehabilitation. ...
  • Oxygen Uptake Estimation In Humans During Exercise Using A Hammerstein Model 
    Wang Lu; Celler Branko; Su Steven; Savkin Andrey (Springer, 2007)
    This paper aims to establish a block-structured model to predict oxygen uptake in humans during moderate treadmill exercises. To model the steady state relationship between oxygen uptake (oxygen consumption) and walking ...
  • Portable sensor based dynamic estimation of human oxygen uptake via nonlinear multivariable modeling 
    Su Steven; Celler Branko; Savkin Andrey; Nguyen Hung; Cheng Teddy; Guo Ying; Wang Lu (IEEE, 2008)
    Noninvasive portable sensors are becoming popular in biomedical engineering practice due to its ease of use. This paper investigates the estimation of human oxygen uptake (VO2) of treadmill exercises by using multiple ...