FDAnews
www.fdanews.com/articles/97475-registry-tracks-athletes-who-have-icds

Registry Tracks Athletes Who Have ICDs

August 21, 2007

If you have a heart-zapping defibrillator implanted in your chest, you’re not supposed to compete in sports any more intense than bowling or golf. Lots of patients ignore those guidelines, trying everything from school basketball teams and community tennis leagues to running marathons and rock climbing — although no one knows if the life-saving implants work as well under that kind of stress.
Contra Costa Times