I would say that the hypothetical high school kid should research more but apparently he reads enough that he uses big words like IMPERVIOUS, so I am not sure what I can add here ...
I would say that the hypothetical high school kid should research more but apparently he reads enough that he uses big words like IMPERVIOUS, so I am not sure what I can add here ...
For the reason that runners are not impervious to injury - the fact that training imposes damaging stress on the body from which it must recover in order to improve - increasing the amount of training past the runner's hypothetical breaking point would not be conducive to performance anyway.