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To the Editor:—
Dr. Rose's conclusions about cardiac conduction in "Relationship of Cardiac Problems to Athletic Participation" (208: 2319, 1969) are not in agreement with information that we have reported (Arch Intern Med122:340, 1968).There is convincing evidence that right bundle-branch block (RBBB) may actually be a rather common finding in normal athletes. It may be present in 20% to 25% of trained sportsmen. When intensive training is discontinued, RBBB may disappear. Dr. Rose's opinion that "subjects with [right] bundle-branch block should be withheld from strenuous sports until freedom from cardiovascular disease... can be demonstrated" seems over-conservative in face of current data. In addition, there is always the problem of how extensive an investigation should be carried out in a subject who is well-trained and shows good athletic performance and endurance.Second, arrhythmias are frequently seen in sportsmen and probably do not predispose athletes to serious conduction disturbances.
Gott PH. Arrhythmia Problems and Athletic Participation. JAMA. 1970;211(3):502. doi:10.1001/jama.1970.03170030094022
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