Re: Running in marathons impairs immunity

On 11/19/2003 3:36 PM, John 'the Man' wrote:

> When it comes to exercise, a lot of people like to take an extreme
> position.  Either they claim that they exercise because they do Hatha
> Yoga (ie, the extreme of deficiency), or they insist upon running in
> those 26 mile marathons (ie, the extreme of excess).  Marathon runners
> are really an insane group of people.

I didn't have that take on the article at all.  I am no marathon runner 
but I do exercise for more than 90 minutes at a time at least once a week.

> "Many components of the immune system exhibit adverse change after
> prolonged, heavy exertion lasting longer than 90 minutes."  Thus, 90
> minutes should be the maximum length for all workworks, particularly
> for continuous exercise activities.

Why do you think that 90 minutes should be the maximum length?  What 
makes you think that the human body was not designed for durations of 
activity?

--
jmk in NC