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Re: [IP] Running vs other forms of exercise
Date: Wed, 29 Nov 2000 13:11:29 -0500
From: "Susan M. Fisher" <email @ redacted>
Subject: [IP] Running vs other forms of exercise
All my life, I've scoffed at the reports that a diabetic cannot exercise
(or their performance/energy level will suffer) at numbers above 200.
However in the past week, I've been convinced! Former forms of
exercise, while extremely strenuous, were just not the same as running.
I am doing a 10 weeks to a 5k program, and am learning all sorts of
1. in aerobics classes, other high intensity sports - I would drop
drastically in the first 15 min and then level out. I always
disconnected about 15 minutes prior and remained disconnected for the
2. with running, I cannot disconnect or I will generally rise or not
budge. I think it is more difficult for me, therefore my liver must be
kicking in some energy/sugar which makes my sugars NOT change and/or go
up. I no longer have the sharp drop at the beginning either??? Must be
taxing from the first minute ;)
My question is for serious runners (which I would like to become!) - how
does running differ from other sports in terms of blood sugar for you?
What is your range of optimum performance? Mine suffered about 210!!!
I certainly don't consider myself a serious runner. I run about 10k a few
times a week. I have been running for 5 years, diabetic for 15 months and
pumping for 6 months.
When I do other aerobic exercises, like an hour of kickboxing, I lower my
basal less than I do for running. Running for me is much more challenging
and has a greater effect on my blood sugars. I'm still concentrating on
figuring out my best adjustments for running, what what has helped me, and
it seems you are doing also, is testing during a run. I have a belt with
a meter case and I test at 15-20 minutes and then every 10-20 minutes
thereafter depending on how I am doing. For me, I can be really low
(30's) and still feel ok while running, just think I am a bit fatigued
from the run. I think that when my basals were higher than what they are
now I was going low without noticing and then rebounding. I started my
basal reduction to 70% and was sometimes ending up higher, so I upped it
to 80%. I was convinced it was my liver doing the dirty work, especially
if I didn't have any food and bolus insulin in my system. An exercise
physiologist convinced me to do the testing, which I was resistent to
because of the hassle, but her suspicion of the low was right on. From
doing all the testing over the past couple of months, I am now at a 50%
basal and I turn it down about 20 mins before going out. I am still
dropping a lot at first, then level, then drop into the low range about
30-40 minutes into the run. I don't want to cut back too much too soon to
start high, so I am making adjustments very slowly. Although I don't have
problems with not doing well at high numbers like you maybe because I have
an early drop.
I went to the IDAA conference last July and there were many runners with
very different strategies. Some like to (and amazingly are able to) keep
in a very narrow range for a whole marathon, like 90-120. There are
others who get up wicked high to the 300's before a race and do the best
in this condition. I guess just continue experimenting and gather data
and good luck!!
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