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Michael Laurent, BM

	Since this article does not have an abstract, we have provided the first 81 words of the full text and any section headings.

I have read with great interest the article by Chakravarty and coworkers¹ on disability and mortality among aging runners. Long-term vigorous exercise has been proposed as a risk factor for atrial fibrillation in aging professional and amateur athletes.^2-4 I wonder if the authors could find an increased incidence of atrial fibrillation (or flutter) in the medical histories of their study subjects?

AUTHOR INFORMATION
Correspondence: Mr Laurent, Faculty of Medicine, Katholieke Universiteit Leuven, Rooistraat 8, Wilsele, 3012, Belgium (michael.laurent@student.kuleuven.be).

1. Chakravarty EF, Hubert HB, Lingala VB, Fries JF. Reduced disability and mortality among aging runners: a 21-year longitudinal study [published correction appears in Arch Intern Med. 2008;168(22):1948-1949]. Arch Intern Med. 2008;168(15):1638-1646. FREE FULL TEXT 2. Schoonderwoerd BA, Smit MD, Pen L, Van Gelder IC. New risk factors for atrial fibrillation: causes of "not-so-lone atrial fibrillation." Europace. 2008;10(6):668-673. FREE FULL TEXT 3. Karjalainen J, Kujala UM, Kaprio J, Sarna S, Viitasalo M. Lone atrial fibrillation in vigorously exercising middle aged men: case-control study. BMJ. 1998;316(7147):1784-1785. FREE FULL TEXT 4. Heidbüchel H, Anné W, Willems R, Adriaenssens B, Van de Werf F, Ector H. Endurance sports is a risk factor for atrial fibrillation after ablation for atrial flutter. Int J Cardiol. 2006;107(1):67-72. FULL TEXT | ISI | PUBMED

Arch Intern Med. 2009;169(7):719.

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RELATED ARTICLE

Reduced Disability and Mortality Among Aging Runners: A 21-Year Longitudinal Study
Eliza F. Chakravarty, Helen B. Hubert, Vijaya B. Lingala, and James F. Fries
Arch Intern Med. 2008;168(15):1638-1646.
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