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Items for "non-linear dynamics"

Fractal dimension in health and heart failure

Background: Non-linear analysis of heart rate variability (HRV) can give additional information about autonomic control of the heart rate...

Keywords: autonomic control, non-linear dynamics

10/2006 | Biomedizinische Technik, Walter de Gruyter

Clinical correlates of non-linear indices of heart rate variability in chronic heart failure patients

We assessed the clinical correlates of a comprehensive set of non-linear heart rate variability (HRV) indices computed from 24-h Holter recordings for 200 stable chronic heart failure (CHF) patients [median age (lower quartile, upper quartile) 54 (47, 58) years, LVEF 23% (19%, 28%)]...

Keywords: chronic heart failure, Heart rate variability, non-linear dynamics

10/2006 | Biomedizinische Technik, Walter de Gruyter

State-space analysis of joint angle kinematics in normal treadmill walking

By restricting analysis to single averaged strides considered to be characteristic for the individual under investigation, current methods in gait analysis do not exploit the full dynamics of continuous locomotion...

Keywords: gait analysis, non-linear dynamics, state space reconstruction, treadmill

12/2006 | Biomedizinische Technik, Walter de Gruyter

Autonomic cardiac control in animal models of cardiovascular diseases. I. Methods of variability analysis

Analysis of heart rate variability (HRV) and blood pressure variability (BPV) and baroreceptor sensitivity (BRS) has become a proven tool in clinical cardiovascular diagnostics and risk stratification...

Keywords: Animal model, baroreceptor sensitivity, blood pressure variability, cardiovascular characterization, Heart rate variability, non-linear dynamics