Why the study?
Does a single session of High-Intensity Interval Exercise (HIIE) improve vagal tone and decrease arrhythmias in patients with Chronic Heart Failure?
Does a single session of High-Intensity Interval Exercise (HIIE) improve vagal tone and decrease arrhythmias in patients with Chronic Heart Failure?
A single session of high-intensity interval exercise acutely improves vagal tone and reduces arrhythmias over 24 hours in patients with chronic heart failure.
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Acute HIIE may improve autonomic profile in CHF; hypothesis-generating for arrhythmia reduction, needs prospective trials.
We demonstrate that a single session of HIIE improves autonomic profile of CHF patients, leading to significant reductions of HR and arrhythmic events in a 24-h posttraining period. Cardioprotective effects of HIIE in CHF patients need to be confirmed in a larger study population and on a long-term basis.
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Guiraud et al. (2013) studied this question.
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