>With my first marathon coming up in a couple of weeks I'm wondering
>if I should wear it for the race, even though there will be markers
>at every km. Any recommendations?
I've worn mine in my last two marathons. I think it takes some time
and experience to learn how to effectively use it. So yes, I would
suggest you begin to observe and understand you body and what is
happening with it during the course of the event. I'm still learning
but will give my observations of my experiences. It would be good to
hear some others.
In my first event, I was going to run with a HR of 155 to 160, my max
is 184, I was 44, and my training had gone fairly, but due to some
muscle problems, I missed all the prior training races. The night
before the marathon, I was reading Sally Edwards book and saw a
comment that she had set her HR to 160 to 165 in a marathon when her
Max with 185, so I thought that I should do the same and I set mine
for 160 to 165. I was fine, burning the first 14 miles, began to
slow, markedly at 18, and crashed at mile 24. At that time my HR
dropped to 130, and I could hardly move.
At Boston, since I had not run for two months due to injury, I wanted
to make sure that I ran easy, just wanted to finish. I set the
monitor to 150 to 155 and struck with this the whole way, except for
160 on the bigger hills, and towards the end. I finished easily and
feeling fine, although my pace was slowing the final 6 or 7 miles.
Choosing the right range can be difficult, because it depends not only
on your max heart rate, but your condition. One thing that I have
observed is that with a marathon, you can count on your HR to INCREASE
in the later miles of the marathon, even while holding a steady pace.
So too high a heart rate for the early miles may spell disaster later.
If George Parrott is reading this, since you have a lot of experience
with heart rate monitors, perhaps you could provide further
enlightenment on the use of HR monitors during marathons.