Why the study?
Does a faster finishing time and higher number of completed races increase the risk of arrhythmias in male participants of a 90 km cross-country skiing event?
Does a faster finishing time and higher number of completed races increase the risk of arrhythmias in male participants of a 90 km cross-country skiing event?
High-intensity endurance exercise, as indicated by faster finishing times and more completed races in cross-country skiing, is associated with an increased risk of arrhythmias, particularly atrial fibrillation and bradyarrhythmias.
May prompt arrhythmia surveillance in high-volume endurance athletes; leaves open causality and generalizability beyond male skiers.
Among male participants of a 90 km cross-country skiing event, a faster finishing time and a high number of completed races were associated with higher risk of arrhythmias. This was mainly driven by a higher incidence of AF and bradyarrhythmias. No association with SVT or VT/VF/CA was found.
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Andersen et al. (2013) studied this question.
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