Human study · Exercise · 10 Sept 2026
Strength training shows no added arrhythmia risk in arrhythmogenic cardiomyopathy registry
Source: News-Medical
What the research found
Study (registry). Johns Hopkins ARVC investigators report in JACC: Clinical Electrophysiology that among U.S. adults (median age 34 at enrollment, 44 at close), strength training (≥2 hours/week of weights, climbing, or martial arts) was not linked to higher sustained ventricular arrhythmia versus sedentary peers, while endurance athletes (≥4 hours/week vigorous aerobic) were 58% more likely to have an event than the sedentary or strength groups. About 55% of the cohort had a ventricular arrhythmia at some point. This is not blanket gym advice and not a diagnosis. Exercise choices in inherited cardiomyopathy are clinician-only.
Evidence level: Human study. A study in people, but an association isn't proof of cause.
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