Be heart smart to get a head start in the marathon

Health experts are warning marathon runners to ensure they are physically prepared to avoid cardiac emergencies during long-distance events. While running is a popular activity, underlying cardiovascular conditions can make the physical stress of a marathon dangerous for some participants.
Participating in an event like the Sydney Marathon needs to be approached sensibly, experts say. Photo: Dean Lewins/AAP PHOTOS Marathon runners are often considered among the fittest people in the community and, with the right training and preparations, they can be.
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