Exercise test in atrial fibrillation

Exercise Training and Atrial Fibrillation

457 Atrial fibrillation (AF) is the most common clinical arrhythmia with a global burden that has increased progressively, contributing to rising hospitalizations and substantial healthcare demands. Although aging is an important contributor to the rising AF prevalence, key mechanistic promoters of AF include modifiable risk factors such as obesity, hypertension, diabetes mellitus, and obstruct...

Does endurance exercise cause atrial fibrillation in women?

Protective effects of simvastatin on atrioventricular node during simulated experimental atrial fibrillation in vitro

Introduction: Recent evidence has indicated that statins can reduce the incidence of both supraventricular and ventricular arrhythmias with various mechanisms. The primary goal of the present study was to determine direct protective role of simvastatin in modifying concealed conduction and the zone of concealment in a simulated model of atrial fibrillation (AF) in an isolated atrioventricula...

Diltiazem and exercise performance in patients with chronic atrial fibrillation.

To evaluate the influence of calcium entry blockade (diltiazem 60 mg qid) on exercise capacity in patients with chronic atrial fibrillation, nine men (mean age 65 years) with atrial fibrillation underwent maximal treadmill exercise on and off diltiazem therapy. Heart rate, blood pressure, and measured ventilatory parameters were assessed at a standard submaximal workload (3.0 mph/0% grade), the...

Exercise metaboreflex activation and endothelial function impairment in atrial fibrillation.

Exercising muscle hypoperfusion stimulates afferents (metaboreceptors) involved in the regulation of ventilation. Atrial fibrillation (AF), particularly when combined with diseases causing endothelial (ED) impairment, such as hypertension (HP) and diabetes mellitus (DM), depresses the ED activity and enhances exercise hyperventilation. The relationship between these two functions and the underl...