Diabetics who run Marathons!

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Diabetics who run Marathons!

Diabetics who run Marathons!

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Comment by acidrock23 on May 6, 2012 at 10:24am

I ran a 1/2 today, 2:06ish, hoped to get 2 hours but again cramps in my calves. BG seemed to be a non-issue, I hit Gatorade or water on the way, Lucky Charms for breakfast. The CGM was running high, 160s, tested at 140 right at race time, I took 1/3 of the bolus for 10G of carbs at the first Gatorade stop. I ran most of the race at an ok pace, it was out and back and I felt really good at the turn so turned it up a bit and then the cramps hit about 10 miles so the last 3 I slowed down. Still a fun time and a nice run. CGM still in 140s when I finished so I bolused for pizza, ate away and then tested in the car (bus ride away...) and was at 115, w/ the CGM still in the 140s. It seems to have gotten back in line by the time I got home. I'm wondering if some of the weight things are tightening my calves and leading to the cramps? I'll see if I lay off some of the lifting if it helps.

Comment by Jerry Nairn on May 3, 2012 at 1:24pm

A couple of years ago I used the Medtronic CGM with the Paradigm 522 for a while and hated it. Too painful, too difficult to calibrate, too inaccurate.

The latest Medtronic stuff may be better.

I've been using a Dexcom Seven+ CGM for over a year, two marathons, two other foot races, an Ironman DNF, and way too few training runs, bike rides, and open water swims to do those races, and the CGM has worked very well for me most of the time.

The Dexcom sensors are less painful than the Medtronic sensors I used, although still worse than an infusion set. It has been way easier and more accurate to use the Dexcom.

Like acidrock, I carry a meter, too. It isn't CGM or meter, it's meter plus CGM.

Comment by drsoosie on May 3, 2012 at 10:57am

Hi Erin2!!! i am also running the chicago Marathon as my first!!! Where do you get the honey stingers?

Comment by acidrock23 on May 3, 2012 at 8:02am
I've liked the Cgm for running and find the data very useful. I also lug my meter in these shorts- Race Ready- that Jerry tipped me off to,. like 15 pages back. I turn down to 40%ish too.
Comment by Erun on May 3, 2012 at 7:57am

I'm going to try my CGM again but mine stopped communicating during my marathon on 4/22- not sure what the problem was.If honey stingers work for you, that is a good choice. A marathon is different in that your liver will be out of glycogen after about 20 miles of running so you will need additional carbohydrates- maybe more than you are taking for a half marathon. I did not take enough carbs during my marathon and even though I cut my basal rate by 80% during the marathon, my bg was 48 at finish.

Comment by erin2 on May 3, 2012 at 7:46am

So, I am getting ready to run the Flying Pig half marathon this Sunday. I am very excited!!! Also, I am doing the Chicago Marathon. This will be my first marathon. What are thoughts on CGM's. I had one when I was pregnant, and hated it. It was very painful putting it in(I am very small). I was thinking I could just run with my glucometer. oh, I was reading all these comments about nutrition, and I always turn down my basal rate about 40%. I eat Honey Stingers. They are organic energy chews. I eat about 2 or 3 every 3 miles, and I haven't had a low or high during this training.

Comment by Erun on May 3, 2012 at 7:32am

Sheri Colberg,PhD author of The Diabetic Athlete recommends that for marathons insulin pump users should reduce basal rates during the marathon by 25 to 100% to minimize circulating levels of insulin. I see no need to take insulin for the carbs consumed during the marathon unless you are getting high blood glucose readings. Working muscles take sugar out of the blood without insulin. Also I think the best drinks or carb sources are ones with glucose and fructose. I don't see any need for additional nutrition except salt unless you are running an ultramarathon. From Dr. Mikrin---http://www.drmirkin.com/public/ezine042212.html
Part of his article-Drinks that contain both glucose and fructose sugars will help you race faster in competitions lasting more than a couple hours. Drinks that contain only maltodextrin, (made from starches extracted from rice, corn, potato and whole grains) are not as effective for racing because maltodextrin contains just the single sugar called glucose. However, drinks that contain maltodextrin plus fructose improve race times better than those that have maltodextrin plus glucose (Applied Physiology, Nutrition, and Metabolism, April 2012).

Comment by drsoosie on May 2, 2012 at 9:57pm

Thank you Acidrock and Jerry for your input. I will keep you posted as I experiment in the next months!Of course I will have many more questions!!!

Comment by Jerry Nairn on May 2, 2012 at 9:00pm

I try to take in some carbohydrates every 45 minutes to an hour on long runs, and I set my basal rate to anticipate that.

Comment by acidrock23 on May 2, 2012 at 8:10pm

this seems to be a pretty good article about nutrition?

http://journals.lww.com/acsm-msse/Fulltext/2009/03000/Nutrition_and...

 

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