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Sport-related Insulin Resistance

tim2000s

tim2000s

Expert
Retired Moderator
Messages
8,924
Location
London
Type of diabetes
Type 1
Treatment type
Other
Does anyone else suffer "Sport-related Insulin Resistance"?

I've raised questions on this in the past, and I think I know the reasons, but today I am injecting Novorapid like it is going out of fashion, with little to no response (three times my usual volume!!!!)

My diet has remained the same (I can be interminably boring on food when I am training), however, today, my BG levels today have been utterly resistant to insulin, and I've been injecting like a mad man.

I think the driver is a training session I did last night, where it was noted at the time that I was making a lot more noise than normal, and I PB'd on both deadlift and bench press. As a result, I believe that I am suffering a level of muscle inflammation in response to the effort put in last night. There is a technical term for this, but I can't remember what it is.

As has been noted in various places (that I'm not going to dig out now), inflammation can lead to insulin resistance. I think that following monster training sessions like these I see a huge uptick in inflammation as I damage the muscles and this leads to insulin resistance.

Has anyone else noticed this in relation to T1?
 
In general I've found the opposite to be true with exercise, but I do mostly aerobic exercise.

However I do notice after anaerobic running, >85% HR (which is about 10k race pace for me) that my BG has a tendency to increase post exercise for a few hours. I put that down to stress hormones. Not much experience with weights yet though. (but I'm working on it ;))

The other thing to consider is that, if feeling unwell, you might see a similar effect on BGs. I'll spare you the details but I was reminded of this after having to quadruple my insulin dose in the QA:CP ratio since Sunday... and I suspect it isn't enough yet!
 
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