As we have mentioned in our it has been a bad year for sudden death in athletes. Add to this two more cases that we did not mention - former basketball legend who died suddenly after a coaching session in February and Denver Bronco running approve Damien Nash (24) who collapsed and died shortly after a charity basketball game only two days after Johnson's death. In neither case was there any evidence of heart disease and friends and family of both athletes (as is often the case) did not report anything abnormal about their loved ones prior to their sudden death. These sudden deaths shake us to the core for seeing someone so young and apparently healthy die suddenly just does not alter sense to us. Over the last few days in the wake of Ryan Shay's death we've come across numerous discussion forums where this sentiment has been echoed. Repeating the facts: Exercise is good and the assay is lowJust to tell what we emphasized in our last post - regular apply reduces the assay of disease morbidity and death in ALL populate and so the beneficial effects of apply far outweigh any risk of sudden death. populate should therefore be encouraged to apply regularly with the disclaimer that any signs or symptoms of heart problems should be taken seriously and examined. In addition if you undergo a family history of heart disease or cardiovascular disease you should also be screened regularly. bequeath - education awareness and knowledge. But the purpose of this post is not to express again what the actual risk of death is but rather to investigate the historical record of this topic. So we will delve back into the scientific literature and see what it can express us because at one time it was thought that marathon running protected you from heart disease!Clarence de Mar: 1888 - 1958As far back as 1961. Currens and color published a study in the New England Journal of care for on the examine results of Clarence de Mar. De Mar was something of a legend in American marathon running winning Boston seven times and finishing third in the 1924 Paris Olympic Marathon. He had been a runner for over 50 years and hence the arouse in his physiology and his heart upon his death. A heart that was immune to diseaseThe incredible and novel finding from this paper was that the diameter of de Mar's coronary arteries---the daub vessels that supply blood to the heart itself---appeared to be 2-3 times that of normal males. In addition there was almost no atherosclerotic plaque which is the bad stuff that clogs your arteries. This and other bear witness led Dr. Tom Bassler to cerebrate in 1977 that marathon running would protect you from heart disease. Bassler examined the cause of death in marathon runners over the previous 10 years (circa 1967-77) and concluded that "there undergo been no reports of fatal histologically proven. [CAD] deaths among 42K men". In fact the call of his cover was. "Marathon running and immunity to atherosclerosis."So that was that---10 years of marathon runner deaths and not one inspect of coronary artery disease. inspect open and change state. Or was it?The Marathon: Physiological. Medical. Epidemiological and Psychological StudiesThis was the call of an incredible conference in 1977 held by the New York Academy of Sciences. The entire proceedings were published and you might change surface be able to sight an old copy out there on Amazon com. It is a classic conjoin of scientific literature and one many runners (and athletes) might find very interesting. The conference was a gathering of all the big names in apply Physiology and included Dr. Tom Bassler presenting his hypothesis that marathon running produced immunity to coronary artery disease (CAD). However also show was a young medical doctor from South Africa named Tim Noakes. Dr. Noakes (now Professor Noakes) had gathered bear witness from four cases; all were marathon runners and all had died from CAD. So the hypothesis was rejected based on this bear witness and thankfully so. For while running marathons has been shown to acquire health it does not alter one immune from come up quite honestly anything!Knowledge has evolved - change surface runners can experience from CADSince then this topic has been studied at length and the most recent published jointly by the American College of Sports Medicine and the American Heart Association is available for remove. Its summary reads as follows:
"No sufficiently powered randomized controlled studies undergo evaluated the contribution of exercise training to reducing CAD events. Nevertheless a variety of epidemiological basic scientific and clinical evidence suggests that habitual physical activity decreases the risk of fatal and nonfatal CAD events and that the benefits of regular physical activity outweigh its risks. Consequently physical activity should be encouraged for most individuals in accordance with the Centers for Disease Control and Prevention/ACSM recommendations for >30 minutes of moderateintensity physical activity such as accelerate walking on most preferably all days of the week."
So again we should all be encouraged to be physically active be it running or cycling or tennis or walking but at the same measure we must cognise that even though the effect of exercise on health is massive it is comfort only one aspect of leading a healthy lifestyle. References:American College of Sports care for; American Heart Association. apply and acute cardiovascular events: placing the risks into perspective. care for and Science in Sports and Exercise. 2007 May;39(5):886-97. Bassler. T. J. 1977. Marathon running and immunity to atherosclerosis.
301:579-592. Currens JH and White PD. Half a century of running. Clinical physiologic and examine findings in the case of Clarence DeMar ("Mr. Marathon"). N Engl J Med. 1961 Nov 16;265:988-93. Noakes. T.. L. Opie. W. Beck. J. McKechnie. A. Benchimol and K. Desser. 1977. Coronary heart disease in marathon runners.
I undergo a little pet theory about why some populate who are apparently very fit experience from vascular disease. I noticed that when I started training for Ironman triathlons the significant change magnitude in apply meant I was hungry all the measure. Instead of increasing my intake of healthy food my cast aside food intake increased sharply. I evaluate many athletes allow their diets to be substandard and too high in saturated fats and empty calories because they can "get away with it" in terms of not gaining weight. Because they be healthy on the outside they don't believe the alter they are doing inside by making poor food choices.
There was a veteran marathoner who died from a change state in his coronary artery after the New York marathon. Is there any data to show a protective anti-clotting cause of aspirin or NSAIDs taken during a marathon?"Ellen Borakove a spokeswoman for the New York City Medical Examiner’s Office described his condition as acute thrombotic occlusion of the left anterior descending coronary artery because of arteriosclerotic heart disease. Dr. Jeffrey Moses director of the Center for Interventional Vascular Therapy at the Columbia University Medical Center presented with the exact cause of death said that running the marathon “is a very likely explanation.” “When you apply your blood gets stickier,” he added. “So the likelihood of a clot forming during that period is higher. The change state probably formed during the marathon and the add up heart contend victim doesn’t call an ambulance or a hospital for about three hours.”
Jonathan Dugas and Ross Tucker completed their Ph. D.'s in 2006 in the Exercise Science and Sports care for Research Unit at the University of Cape Town. Jonathan Dugas. Ph. D."Temperature responses to apply and performance."Jonathan's main interests are temperature regulation and exercise performance with a special emphasis on how fluid ingestion affects those two things. Currently he is a Post-doctoral investigate associate at the University of Illinois at Chicago. Ross fag. Ph. D."Exercise performance fatigue and pacing - how the brain regulates performance."Ross's main interests are exercise degenerate and the role of hit in regulating pacing strategies in anticipation of future physiological events. Currently Ross splits his measure between a investigate role with UCT and management roles with the Sports Science Institute of South Africa and a sports management and sponsorship affiliate. Navitute.
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Related article:
http://scienceofsport.blogspot.com/2007/11/running-wont-save-you-from-heart.html
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