Should the Augmentation Index be Normalized to Heart Rate?
نویسندگان
چکیده
منابع مشابه
Do ventricular repolarization interval ratios depend on heart rate and should they be rate-corrected?
QT interval decreases with increasing heart rate (HR), hence to define normal values of QT interval for different heart rates requires the application of a QT interval rate correction formula. However, it’s unknown the influence of HR on the ratios between several ventricular repolarization intervals, that can be useful as risk predictors of malignant ventricular arrhythmias. This study analyze...
متن کاملWe should be using nonlinear indices when relating heart-rate dynamics to cognition and mood.
Both heart rate (HR) and brain functioning involve the integrated output of a multitude of regulatory mechanisms, that are not quantified adequately by linear approximations such as means and standard deviations. It was therefore considered whether non-linear measures of HR complexity are more strongly associated with cognition and mood. Whilst resting, the inter-beat (R-R) time series of twent...
متن کاملI-14: Assisted Reproduction and Religion What Consideration Should Be and Should Not Be Relevant,
Several important issues are pertinent to an ethical discussion of the new technology today grouped under the name Assisted Reproduction Technology (ART). This is a moral imperative because each of us must decide what is to be considered ethically acceptable in assisted reproduction. Reflecting on the ethical dimension of ‘creating’ a new human life can play a major role in ensuring that in eac...
متن کاملWhat should be a rate of convergence ?
— An aiiempt to set up a method for estimating convergence of itérative processes using inequalities of the type where (Ù is a "small" fonction as deflned by the author. This method is compared with the classical notion of a rate of convergence ; for convex fonctions (ù inequalities using the distance of xn from the solution and those using the distance of two consécutive steps are shown to be ...
متن کاملShould the attainment of predicted heart rate maximum be used as an exercise test end point?
Age predicted maximum heart rates based on the formula 220-age have long been used in fitness and clinical settings to gauge exercise intensity and predict exercise test end points. Exercise stress tests have in some cases been routinely terminated based on the attainment of this equation, despite recommendations that age predicted maximum heart rates should not be used as an exercise test endp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Atherosclerosis and Thrombosis
سال: 2014
ISSN: 1340-3478,1880-3873
DOI: 10.5551/jat.20008