Sinus bradycardia, or a slow heart rate, can be a sign of cardiovascular health in healthy young adults and endurance athletes. It can also be a sign of an underlying condition requiring medical ...
One woman (case 5) completed four workloads. Immediately after the fourth workload, the fetus had bradycardia (103 bpm) and high umbilical artery PI (1.67). Further exercise was stopped. At this point ...
Severe sinus bradycardia Sinus pauses/sinus arrest Sinoatrial nodal exit block Chronotropic incompetence (failure of heart rate to increase during exercise) Clinical symptoms depend on the mechanism.
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