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Re: [IPk] Insulin resistence?

Hi Mir,

Physical activity, whether something like massage which moves tissues around 
or exercise that involves moving tissues on one's own, can lower bgs in the 
short term in 2 ways. The first way is through burning up of glucose in the 
body for energy - this is why we often reduce basals before or during or 
just after exercise. Second, if one is taking long-acting or 
intermediate-acting insulin, you betcha the insulin is stored in the 
tissues. Intermediate or long-acting insulin works only if injected into 
tissue because it reacts with the tissue. If you put an intermediate- or 
long-acting insulin into an IV, it will act faster than injected Humalog. 
The old advice to avoid exercising the body part into which one has injected 
one's intermediate- or long-acting insulin for several hours after the 
injection still stands - otherwise the insulin can be absorbed too quickly, 
which can cause a hypo and then a high bg later on (the duration of the 
insulin's action can be reduced).

In pumping, we don't worry with intermediate- or long-acting insulin, but 
exercising the body part that has an infusion set in it (arm, leg 
especially) may cause the cannula to bend internally or make the whole 
infusion set fall out (motion + perspiration), so to avoid high bgs or 
wasting sets, a hardcore runner may not want to put a set in his or her leg.

As for upper body exercise reducing bgs - ME TOO! Raising hands above waist 
level and being active, or doing whole-body exercise like swimming or 
rowing, really gets the heart rate up and uses energy. If my bg is in a good 
range when chores need doing, I won't wash walls or sweep/mop floors. My 
heart rate goes up and I wind up exerting myself much more than if I were 
just using my legs.

Type 1 11+ years; MiniMed pumper 7.5 years; Animas pumper 1 year

----Original Message Follows----
From: "Miriam Connor" <email @ redacted>
Reply-To: email @ redacted
To: <email @ redacted>
Subject: Re: [IPk] Insulin resistence?
Date: Wed, 5 Jan 2005 16:20:16 -0000

This may be very left of centre but Grace often goes low after osteopathy
and I have wondered if insulin tends to store in the tissues as I have
noticed when her arms are involved in the manipulations she tends to swing
low. I wonder if dragging the lawn mower might stimulate these tissues too?
May be rubbish but I know of a child who was fine at the start of first
session and had dipped to 0.6mmols at end. This never happened before or
since for them but I've been watching to see a pattern with Grace,
Also massage and yoga both bring down bloods which again would fit with the
idea of there being residues of insulin in the tissues. It would fit with
the idea but the idea may be for the birds!!!
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