3 ms·
Marcora believes that this limit is probably never truly reached—that fatigue is simply a balance between effort and motivation, and that the decision to stop i
by kyllo 12y ago
Marcora believes that this limit is probably never truly reached—that fatigue is simply a balance between effort and motivation, and that the decision to stop is a conscious choice rather than a mechanical failure
Perhaps, mechanical failure is also possible. Extremely strenuous exercise can actually cause muscle tissue to break down and enter the bloodstream, resulting in rhabdomyolysis, a potentially lethal kidney condition[1]. This was quite rare, but recently many cases of it have happened to people who do Crossfit.[2]
[1]http://en.wikipedia.org/wiki/Rhabdomyolysis http://en.wikipedia.org/wiki/Rhabdomyolysis
[2]http://www.huffingtonpost.com/eric-robertson/crossfit-rhabdomyolysis_b_3977598.html http://www.huffingtonpost.com/eric-robertson/crossfit-rhabdo...
- derf_ 12y agoThere are many other things that can go wrong long before this happens. Think joints, ligaments, tendons... I say this as someone who once walked 100 km in a bit under 21 hours. I am not an athlete. When I was done my knees had swelled to the size of grapefruits and I could not bend my legs anymore.
- makeset 12y agoWhy did you do that?
- jklp 12y agoI was on the support team for my friends earlier this year for the Oxfam 100km trailwalker[1] - a fundraising event - though I know they're other endurance events where people run for 200kms and longer 1. https://trailwalker.oxfam.org.au/melbourne https://trailwalker.oxfam.org.au/melbourne