> how his heart holds up for eight hours of freestyle > every single day I expect NPR to not confuse freestyle and front crawl :-/
Except that for pretty much everyone, especially everyone involved with swimming, they are synonymous.
Can Extreme Exercise Hurt Your Heart? Swimming the Pacific to Find Out
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Re: Can Extreme Exercise Hurt Your Heart? Swimming the Pacific to Find Out
#22Earlier quoted context omitted.
"It could go on to show that extreme (exercising at low intensity for 8 hours a day for 5-6 months)" That doesn't sound extreme by any definition. It sounds really hard and is a lot of output over time, but it is not at all what I would characterize as "extreme". If I were trying to discover what "extreme" exercise did to ones heart (or body, whatever) I would simulate a life or death scare that would enlist adrenali…
8 hours of exercise each day is an extreme. A sudden start (like you describe) is also an extreme. The latter is easy to measure and test in a lab (sort of), the former isn't really. It'd be hard to find the funding to pay people to perform that level of physical activity day after day (constant motion, not the start on stop of most pro athlete training schedules), for months at a time.
Surely you can easily find people in poor agricultural countries that do manual labour in fields for many hours everyday. How about women in paddy fields, bent over tending the rice plants for several hours each day?