Key result
Moderate exercise in arrhythmogenic cardiomyopathy increases oxygen uptake, driven ~77% by peripheral extraction over central delivery.
Why the study?
To quantify central oxygen delivery, peripheral oxygen extraction, and muscle diffusive oxygen conductance during upper-extremity resistance and lower-extremity aerobic exercise in patients with arrhythmogenic cardiomyopathy.
Observational (n=19)
p-value: p=<0.001
In patients with arrhythmogenic cardiomyopathy, moderate-intensity exercise is mediated predominantly by peripheral oxygen extraction rather than central oxygen delivery, providing a physiological rationale for safe exercise.
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May inform exercise responses in arrhythmogenic cardiomyopathy; hypothesis-generating and requires prospective trials before practice change.
Wernhart et al. (2026) conducted an observational in Arrhythmogenic cardiomyopathy (n=19). Moderate-intensity resistance and aerobic exercise was evaluated on Variance in whole-body oxygen uptake (V̇O2) (p=<0.001). Moderate-intensity resistance and aerobic exercise in arrhythmogenic cardiomyopathy increased whole-body oxygen uptake primarily via peripheral oxygen extraction (77% of variance) rather than central delivery.
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