James O'Keefe, M.D. presenting at the 2nd Annual Ancestral Health Symposium 2012 (AHS12).

Cardiovascular Damage From Extreme Endurance Exercise

Abstract:
Although a daily routine of physical activity confers remarkable benefits for quality and quantity of life, prolonged continuous high-intensity exercise can cause adverse structural remodeling of the heart and large arteries. An evolving body of data indicates that chronically training for and participating in extreme endurance competitions (marathons, ultra-marathons, Iron-man distance triathlons, etc.) can cause acute volume overload of the atria and right ventricle, with transient reductions in right ventricular function and elevations of cardiac biomarkers, all of which generally return to normal within 7 to 10 days.

In veteran extreme endurance athletes, this recurrent myocardial injury and repair may eventually result in patchy myocardial fibrosis, particularly in the atria, and right ventricle, creating a substrate for atrial and ventricular arrhythmias.

Furthermore, chronic, extreme endurance exercise may be associated with accelerated aging in the heart and coronary arteries. This presentation will discuss the cardiac pathophysiology of extreme endurance exercise, and make suggestions about better fitness patterns for conferring optimal health and longevity.

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AHS 12 Presentations

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  • Ancestral Health Society

    Hi everyone, we are posting AHS12 videos solely on YouTube moving forward. Thanks for joining us here and viewing our presentations. You can find us at: youtube.com/user/ancestryfoundation

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  • Kurtis D

    Would it be possible to please put up the following presentations: Robb Wolf, Mat Lalonde, Peter Attia's “The Straight Dope on Cholesterol”, and Chris Kresser's Iron Behaving Badly? I've really been wanting to see these! Thank you!

    by Kurtis D

  • Ancestral Health Society

    AHS12 person here. We have excellent presentations on the way. Big year ahead of us.

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