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wilkie DAFNE Graduate
Pennine Acute Hospitals
2 posts

I am a type 1 on Humalog and Levemir. Humalog with every meal and Levemir morning and evening. I am doing a full Marathon at the end of May and I am having great difficulty with my sugar levels during the long run. I have tried adjusting my insulin but still having problems. before the run how much should I reduce the QA and the levimir by and how should I increase my CP.s before the run.

Hope someone can help.

novorapidboi26 DAFNE Graduate
NHS Lanarkshire
1,732 posts

I don't have much experience with runs or more recently any activity...lol.....

But I can make some educated comments.....

as a marathon is long and moderately intense I would say the first dose to reduce is your Levemir......I would do some test runs with just that reduced by say 15% and see what happens.....if you can get away with just reducing the Levemir that would be ideal......

What observations have you made so far...?

When will the marathon start in relation to meal times? What food are you likely to have on board before and during the run....?

That information will determine if a Humalog reduction is needed.....

I would say its preferable to avoid taking on carbs if you can, apart from liquid carbs during the run....