These common training-related ECG alterations are physiological adaptations to regular exercise ... Common consequences of increased vagal tone include sinus bradycardia, sinus arrhythmia and early ...

There are no data in the literature regarding incidence of drug induced bradycardia in specific cardiac conditions. The development of symptoms from bradycardia depends on many factors, mainly ...

Those diagnosed with a bradycardia diagnosis or pacemaker ... "We can speculate as to whether there are physiological reasons ...