hows your leg sizeHe don't have any leg size so should be gtg!
How is one run going to make him lose his leg size? He's not training for an ultra.
No, the average body is more capable. C_un_T is not average so it would be completely plausible for his frail bones to give way after 1 hour.A one off 1 hour cardio session isn't going to do anything. It's not like they're sprinting the whole way. You body is more capable than you give it credit for.
have you seen a pro bber running for cardio???
get a grip on life, fark me. am i the only worlds living brain donor? seems so!