M J Lewis

..This exploratory study indicates the possibility of using physical exercise in conjunction with multifractal methodology as an adjunctive description of autonomically mediated modulation of heart rate...

..There were no gender-related differences in cardiac responses. HRV is a useful surrogate of cardiac stress when assessing older people's responses to their environments...

..We speculate that greater complexity in QT data might be explained by a direct ANS influence on the ventricular myocardium...

..Our results provide tentative evidence that electrocardiographic improvements during a cold-turkey smoking quit attempt (acute nicotine withdrawal) are maintained during NRT pharmacotherapy...

..We examined the influence of long-term oxygen therapy (LTOT) on heart rate (RR) and QT time-series in COPD...

..We postulated that these methods can help assess the integrity of cardiac control in hypoxic COPD...

..We conclude that the QTVI is a reasonably consistent measure of the cardiac ventricular function, and as such is a more useful index than other parameters based on RR or QT interval alone...

..005) in both genders. The HRV decay constants for the LF and HF bf bandwidths appear to provide an indication of work capacity from submaximal exercise, without prior assumption regarding heart rate and its relationship with work rate...

..QTVI can be used to quantify the relative autonomic influence on the atrial and ventricular myocardium during rest and exercise, and might be related to HR-dependent and HR-independent influences on the QT interval...

..The full extent of autonomic dysfunction, and its clinical implications, has yet to be fully determined and should be the subject of future investigation...

..QT(a)-NN hysteresis is significantly affected by the locations of the ECG electrodes used to record the surface ECG. These results emphasize the need for standardization of ECG electrode placement in future investigations...

..quot; HRV analysis therefore provides a noninvasive method for investigating the dynamic influence of changing physiological parameters on cardiac regulation...

..Fetal magnetocardiography and the fetal vectorcardiogram may thus provide important additions to current methods of antenatal monitoring...

..Further investigations of biomagnetometry in this discipline should focus on three main areas: cardiology, encephalography and neurology, and body composition assessment...

..A brief survey is presented which examines those studies that have investigated the utility of CAL for teaching anatomy and physiology within subjects allied to medicine...

..g. providing feedback on the cardiac effects of training), the clinician (assisting in cardiovascular screening and exercise therapy evaluation) and the exercise physiologist (providing data for physiological process modelling)...

..4 are in good agreement. However, caution should be exercised when interpreting spectral analysis of RR interval data derived from different acquisition systems during physical activity...

..The study showed that telemonitoring was safe but, despite being well used, it was not associated with changes in quality of life in patients who had stable COPD...

..The setting was the Department of Surgery, Morriston Hospital (Swansea, Wales, United Kingdom)...

..However, given the clinical importance of diminished HRV and the immutable nature of aging, the potential significance of physical activity/training to enhance cardiac regulatory function should not be underestimated...

..The multifractal method appears to be a more sensitive measure of integrated cardiac autonomic function than linear methods for these patients...

..Because of this, the conclusions reached were not always valid. More effort is required in the design of future evaluation studies of nursing CBL packages...

..These cases illustrate the medicolegal dilemma faced by the pathologist, as well as the need for further research into the potential association of PDA with MPH...