Re: All that exercise could kill you . . .

On Aug 18, 3:40 pm, "D." <djense...@xxxxxxx> wrote:
As in most everything, too much exercise--normally a very good thing--
can actually be bad for you.

Even though a key part of managing high blood pressure and heart
disease, new animal research suggests there CAN be too much of this
good thing. The August edition of the journal "Hypertension" reports
that researchers from the University of South Dakota found in
experiments with rats that excessive exercise worsened high blood
pressure and led to progression to heart failure in rats with high
blood pressure.

Because of all the previous findings about the benefits of exercise,
these new findings in rats are unexpected. An editorial published with
the study says that the implications for humans are not yet certain.
Dr. Paul Christian Schulze, of Boston University Medical Center, and
Satyam Sarma of Brown University warn that the findings "should raise
our awareness" of the potential harm intense exercise might do to
people with untreated high blood pressure.

Researchers found that rats which lived with a running wheel tended to
exercise excessively. The results, over time, were structural
abnormalities in the heart and a reduced pumping ability -- all of
which were worse in the active animals than in the sedentary ones.
It's likely that the rats "simply exercised too much."

It's obvious that scientists and clinicians now need to focus on
defining the fine line between beneficial and detrimental effects of
exercise.

Dave

Full text article above extracted fromhttp://shamvswham.blogspot.com/

well, O.K., but maybe if the rats had a good book to read and were
able to take in a movie now and then the results might be different.
Very few of us are confined to a cage with no diversion other than a
piece of exercise equipment. Maybe the rats on the wheel think that
by running long distances they will escape and so get frustrated thus
raising their blood pressures.
Dolores
P.S. Ornish reports the death of one man on his program who over
exercised. I think he attributed it to the man not being in touch
with his emotions or something like that. It is also possible to drop
dead exercising like Jim Fixx who ate a high fat diet, denying that
anyone could die from heart disease who could run a marathon.

.

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