"George Weischadle" <[email hidden]> wrote in message
news:[email hidden]...
Quoted message said:I'm in my 50's, normal height and weight, athletic build. I lift
weights
Quoted message said:and run on the treadmill (20 minutes) 3x per week.
If I maintain a speed of 5.5 mph for the 20 minute treadmill session,
my
Quoted message said:heart rate stays around 128-132 bpm while I run. However, if I
increase
Quoted message said:speed just a bit to 6.0 mph, my HR moves all the way up to 152-156 bpm
while
Quoted message said:running.
In either case, my HR drops back to under 100-105 bpm within 2 minutes
after
Quoted message said:stopping running, and my resting HR is around 50-55. (I'm on Atenolol
and
Quoted message said:Lisinipril for borderline hypertension.)
My questions: isn't this a very BIG jump in heart rate for a
relatively
Quoted message said:minor amount of additional exertion? Should I see my doctor about
this? Is
Quoted message said:152-156 bpm more than I should be doing at my age?
For fit and healthy adults, HR is fairly close to a linear function of
running speed (flat and no wind). Like Don suggested, get a readout of
HR at running speeds from 4mph to 6 mph at 1/2mph intervals. Make sure
your HR stabilizes (3 minutes) at each level. Also recheck by descending
from 6mph back to 4mph. There can be other reasons why yours seems to
take off at 6mph and it could be that you have just started an exercise
program, you become overheated at this pace (indoors on a treadmill with
no ventilation in the summer) or the speed of the treadmill is somewhat
inaccurate.
If you fail to find a satisfactory solution and this concerns you, I
recommend a check with your MD.
Phil Holman