[Ronin]

Hi Everyone:

While I mentioned this incident on the Pre-Diabetes Forum, I also want to mention it on the Exercise Forum because it really belongs here.

On Tuesday Linda and I went out for our daily tandem ride and the weather was perfect for a late fall ride and there was no wind to speak of, so we hammered (made an all-out effort) that resulted in a Personal Record for our 22 mile loop. We went anerobic more than a few times during the ride -- it hurt so good! Yeah, we were beat at the end but feeling good -- tired and hungry, but proud of our accomplishment.

No changes to our eating following the ride but, as you would suspect, the legs were still achy from all the lactic acid that we got from hammering up the hills and grades on the loop. (Yes, I am aware that lactic acid is part of the glucose cycle and causes both the liver and fat cells to release glucose/glycogen into the blood stream.)

Wednesday morning my legs were still a bit sore and stiff and my FBG registed at 128! Ouch, it's never been that high before. However, one hour post breakfast I'm back to 95. So, I'm thinking that the extreme effort that worked the muscles hard had something to do with the higher than normal (normal for me that is) FBG levels.

I do know that Tuesday evening I had to resist some pretty strong hunger sensations to stick to my planned diet for the day but thought that more fat would be consumed. I did drink a lot of water to asuage the hunger feelings.

Just curious to know if anyone else has had a similar experience after a particularly hard workout.

[xMenace]

Yes. This has been discussed many times.

One example: I've tested at 6 before playing hockey and an hour later after an intense game I tested 24! Anaerobic tends to give the liver fits.

[BlueSky]

I would have expected to see raised blood sugar an hour or two after intense exercise. But it is all over by the next morning. I would expect to see lower blood glucose the day after intense exercise because of increased insulin sensitivity and a raised metabolic rate.

[Cyborg]

Ronin, I'm curious what your bg was before going to bed.

[xMenace]

Originally Posted by BlueSky

I would have expected to see raised blood sugar an hour or two after intense exercise. But it is all over by the next morning. I would expect to see lower blood glucose the day after intense exercise because of increased insulin sensitivity and a raised metabolic rate.

The fact that he is used to pretty regular exercise that is probably extreme for most of us may explain not going down later. Still, there was plenty of time for his insulin to kick in. I'm now thinking it's just a meter variance.

[Ronin]

Everyone:

My first reaction was the same as Blue Sky's -- the FBG should have been lower or in my "normal range." However, I also wonder about the mechanism that launches the Dawn Effect and what part the still sore muscles (still producing lactic acid?) might have.

I'm not particularly worried as my post breakfast numbers were right back to where they should be an hour after eating. I did not take a pre-bed check the night before (it was late, I was tired, and since I'm not taking any meds I sometimes blow off this test).

As you will all note, my Fasting C-Peptide is very low (actually a few tenths lower and it would be below the laborator normal range). So, I'm not Insulin Resistant.

As X-Menace noted, it may have been a bad strip or meter glitch.

[xMenace]

Can we assume you are going to try to repeat this? It would be most interesting if you could. And if you do, re-test one or more times.