上次跟 @twistane 扭老师聊，他劝我别长跑
There is no increased risk of symptomatic knee osteoarthritis among self-selected runners compared with non-runners in a cohort recruited from the community. In those without osteoarthritis, running does not appear detrimental to the knees.
All of these causes should be excluded, and in the remaining cases with sudden cardiac death and no discernable cause, an acquired structural cardiac abnormality due to chronic and repetitive sessions of extreme exertion should be considered.
Long-term exercise training and racing involving marathons and ultra-marathons, Ironman distance triathlons, and very long distance bicycling can exact a toll on the health and integrity of the heart and blood vessels
我觉得比较相关的是这两个文章
不是有些“想当然”的膝盖问题，问题是超长时间运动的心脏损伤积累导致暴毙？
我大概也不是一次从专业医生听说马拉松对心脏不好的问题了，应该怎么想？
至少我在reddit上看的rule是training cycle不要单次超过两个半小时？我push mileage应该也不会超过那个时间