Anecdotal concerns about endurance athletics have been building for years. Cardiac conditions that required surgery have forced into retirement two winners of the Ironman Triathlon World Championship. In 2011, Ironman winner Normann Stadler underwent emergency surgery to repair an enormous aortic aneurysm, a condition not caused but very possibly aggravated by endurance athletics. Research shows an association between endurance athletics and enlarged aortic roots.
坊间关于耐力运动的担忧由来已久。铁人三项世界锦标赛(Ironman Triathlon World Championship)的两位冠军得主就因为心脏病需要动手术而被迫退役。2011年,该赛事冠军得主诺曼??施泰德(Normann Stadler)就接受了一场治疗主动脉巨瘤的急诊手术。这种病虽然不是由耐力运动造成的,但后者很可能会加剧病情。研究表明,耐力运动和主动脉根部扩张二者之间存在着某种关联。
Other recent studies suggest the significant mortality benefits of running may diminish or disappear at mileage exceeding 30 miles a week and other, very small studies have shown elevated levels of coronary plaque in serial marathoners─a problem that rigorous exercise theoretically could cause.
近来另一些研究指出,虽然跑步显著地降低了死亡率,但如果一周跑步的总里程超过了30英里(约合48公里),这项运动带来的益处可能就会减少或消失。而其他一些小规模的研究已表明,长期跑马拉松的人其冠状动脉斑块含量升高──这一问题理论上说是有可能由于严格的训练造成的。
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