Before i start working out my blood sugar would be perfect, then maybe 10 minutes into the workout my blood sugar would spike and not come down until hours later. Why is that and what can I do?
hi @EvieFire , certain workout routines (for some people - lifting weights versus cardio) causes a rise in blood sugar. The most likely (from my observations) is when lifting weights causes spikes in blood sugar The reason it causes a rise has to do with adrenaline, adrenaline (a stress hormone) releases stored liver glucose and increases insulin resistance - so your blood sugar goes up.
There is no easy answer, for some people repeating the workout eventually lessens the effect. For others, starting at a higher blood sugar or eating before works, and some people need to balance insulin and exercise to try to contain the rise.
I often mix workouts to include a short warm up, then anaerobic (weights) then aerobic - like a jog, a run or a stair climb to lower blood sugar, but I don’t get a huge spike so my strategy may not be the best . for everyone.
thank you for your advice and insight. I do both lifting and running in my whole routine. But ends same. I will give it time more i do it and see how it effects me from then on.
Yeah this happens to me when I lift weights sometimes. My doctor told me it was probably adrenaline and some other hormones.
But be careful if you are taking insulin. I would often crash when I would try to correct.
1 Like
thank you for the heads up! appreciated
My son had the same issue playing soccer. His number would go from low 100’s to over 300. The sweet spot was to eat and give insulin 3 hours before games. The remaining insulin at that time along with his exercise allowed him to maintain his glucose levels! An hour earlier if he would perform at that intense level he would drop extremely fast.
It’s a balance and a little trial and error.
Good luck
1 Like
thank you for your help, trial and errors aint fun but eventually find something that works 
I feel your frustration, i get a huge drop at the beginning followed by the liver dump and a spike followed by another crash . I have started breaking up my exercise into smaller time frames over the day to lessen the bg effects. I know it lessens the exercise effects but coping with the BG effects has lessened enough that i can still exercise .
I have this issue if I exercise when fasting. I actually prefer to exercise when fasting because I know I won’t tank especially with cardio. If I do it right in the morning though, it usually combines with my dawn phenomenon and I need some insulin to stay in range. For me personally as soon as I see 110 or grater on my cgm I have to take a small amount of insulin (usually .5-1 unit) and then carry on with my workout. Especially if I lift and especially if I focus more on my arms. Legs are different and even if I end my workout high, I come down super quickly and am super insulin sensitive within an hour or so of finishing my workout. Arms I tend to stay higher for longer and then I become really sensitive 3-5 hours later and up to 48 hours after. If you do take a small amount of insulin make sure you have snacks by you. What works for me obviously might not work for you and I would hate to hear that my advice went you tanking without having a good amount of sugar near by!
thank you for your advice and tips! i am taking them into consideration and will be used!
Aenean placerat quam in lacus tincidunt, at sagittis lacus tempor. Donec sed sem ullamcorper, porta sem id, ullamcorper nibh. Vivamus erat elit, cursus sit amet auctor sit amet, posuere sed dui. Vestibulum vulputate varius libero. Mauris varius turpis justo, id auctor ante maximus mattis. Fusce tortor sem, aliquet ac malesuada sit amet, sollicitudin consequat ante. Aenean quis finibus dui, sit amet ultrices erat. Curabitur placerat luctus dui ut porta. Phasellus ullamcorper neque vel nisl pellentesque, volutpat euismod elit tincidunt. Phasellus ultricies eros sit amet erat interdum, et posuere sapien facilisis. Quisque vestibulum vel ipsum eu rutrum. Donec sagittis turpis ligula, ac ornare nulla condimentum ut. Suspendisse orci quam, gravida sed consequat ac, porta vitae diam. Donec ac felis nulla.
Maecenas maximus ante suscipit risus tempor interdum non in sem. Aenean pharetra nisl sed nisl hendrerit volutpat. Etiam sit amet nisi eu ex sodales ornare. Quisque et ligula accumsan, dapibus arcu et, viverra nunc. Sed ut elit arcu. Sed porta, ipsum ac blandit pretium, quam eros condimentum nunc, nec dapibus mi nisl ac lacus. Donec mi magna, hendrerit ac aliquam id, tincidunt nec felis. Morbi dapibus aliquet malesuada. Sed et neque at metus placerat consectetur. Phasellus aliquet sed neque ut porta. Maecenas tortor tellus, hendrerit vitae erat in, pulvinar hendrerit lorem. Nulla eget metus odio. Ut nisi massa, viverra et sagittis id, lobortis sed arcu. Sed fringilla mauris nec metus rutrum, in tempus lorem fringilla.
Etiam vitae consectetur enim, non feugiat risus. Cras urna ante, rutrum ac pharetra vitae, blandit vitae nulla. Praesent eu sem lorem. Etiam vestibulum venenatis lacus ut rhoncus. Etiam pulvinar gravida ante sit amet vestibulum. Morbi nunc enim, vehicula in ante tempor, interdum scelerisque metus. Sed ut odio venenatis, auctor eros at, imperdiet erat. Phasellus scelerisque elit id felis luctus, non dignissim magna iaculis. Integer lobortis quam ex, sed fermentum diam mollis sit amet. Duis finibus, eros at semper fermentum, magna erat feugiat magna, ut viverra ipsum nulla eu metus. Suspendisse dignissim dolor eu risus euismod, quis laoreet lacus iaculis. Nullam faucibus lorem molestie quam bibendum dignissim. Nam rutrum faucibus est. Fusce in magna ut nisi tempor rutrum. In at tempor enim. Maecenas tristique felis non mauris sodales, eget rutrum mi vehicula.
test reply on 1st March 2023, post-2
test post - 07 march-01
test post - 07 march-02