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While I have the utmost respect for anyone able to do it, i've often thought it could be harmful in some cases.
[url= http://www.bbc.co.uk/news/health-16048121 ]http://www.bbc.co.uk/news/health-16048121[/url]
after considering it for a good 45 seconds or so I'd say 'no' - walking across the street is harmful in some cases...
You know it's not a good idea paps, look at how rod's turned out
I'd say it's fine. Ive never had any undesired side effects apart from not being able to walk for a few days. 🙂
Endurance exerise leads to an increase in the BNP apparently. 😯
It's not suprising that the heart changed shape for a period after the race - it is a muscle after all. The science in that article all seems a bit woolly "we think, maybe, possibly" type stuff.
I wonder if those who showed scarring had not built up their training gradually over a period of time, and damaged their heart for that reason.
The word 'scarring' is anatomically accurate, but not really helpful to the lay public. The athletes were re-checked only a couple of weeks later, and in only a small proportion was ventricular function altered. Can't find the abstract to dig out to exactly what degree the function was altered - I suspect not a great deal.
So it doesn't answer the question as to whether there is permanent loss of ventricular function, and whether that will actually bring any meaningful difference to the individual's overall health and performance.
In the absence of significant numbers of enduro athletes dropping dead or suffering heart attacks in their 60s, it's hard to draw any conclusions.
race'ist
I think that if you keep your heart rate below a certain level.
That you're fine to just keep going and going.
Ask Craig Gordon
hijack: iDave, any danger you could post the stuff sac before 2012?