A study published in 1996 found that the risk of having a fatal heart attack during, or in the period 24 hours after a marathon, was approximately 1 in 50,000 over an athlete's racing career which the authors characterized as an "extremely small" risk. The paper went on to say that since the risk was so small, cardiac screening programs for marathons were not warranted. However, this study was not an attempt to assess the overall benefit or risk to cardiac health of marathon running.
In 2006, a study of 60 non-elite marathon participants tested runners for certain proteins which indicate heart damage or dysfunction after they had completed the marathon, and gave them ultrasound scans before and after the race. The study revealed that, in that sample of 60 people, runners who had done less than 35 miles per week of training before the race were most likely to show some heart damage or dysfunction, while runners who had done more than 45 miles per week of training beforehand showed few or no heart problems.
According to a study presented in 2010, running a marathon can result in decreased function of more than half the segments in the heart's main pumping chamber, but other parts of the heart will take over. Full recovery is reached within three months or less. The fitter the runner the less the effect. Now for Olympic 2012, Olympic Athletics Marathon Tickets are being sold at Sport Ticket Exchange. Sport Ticket Exchange offers you all sorts of Olympic Tickets including Olympic Athletics Marathon Tickets at very cheap prices.
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