Time Course of Cardiac Arrhythmia Following High-Volume Exercise in Recreational Cyclists.

ABSTRACT:

Background

The aim of this study was to investigate the time course of cardiac arrhythmias following a bout of high-volume exercise and to identify factors associated with abnormal cardiac arrhythmia.

Methods

Thirty-four recreational cyclists with 12 (interquartile range, 7-20) years of riding experience were recruited for this repeated-measure cohort study. Participants cycled for up to 6 hours at ≈80% heart rate reserve. Cardiac arrhythmias were recorded using a 5-lead Holter monitor for 4 days before exercise, the day of exercise, and 4 days after exercise. Arrhythmias were quantified as totals, abnormal arrhythmias (arrhythmias meeting international consensus criteria for cardiac arrhythmias requiring further investigation), and relative risk.

Results

Sixty-eight

SUBMITTER: Wundersitz DWT 

PROVIDER: S-EPMC12909061 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature