• Guest - w'd love to know what you think about the forum! Take the 2025 Survey »

Blood sugar rise while running?

AlexandraMarnie89

AlexandraMarnie89

Well-Known Member
Messages
98
Type of diabetes
Type 1
Treatment type
Pump
Hi,

I started running a few weeks a ago and have now started interval training with my little boy in his pushchair. Today we did 12 miles.

Before we set of, my sugars were 5.7 but while out went up to 16. I have been told by consultant to do a temp basal reduction of 30% but luckily I forgot to do this today. About 3 miles in, I put a temp basal on at 150% and had to do bolus corrections. Had to do another 2 bolus corrections and temp basal was on for 3 hours after my run - is this normal? Do other people need more insulin when out running? Also been on really LCHF all of this week so doesn't really make sense :s
 
Hey, I'm really sorry but I'm a type 2 so I don't know about bolusing, but I think that maybe that when you exercise hard you absolutely take control of your BG. Of course I could be wrong......
 
AlexandraMarnie89 said:
Hi,

I started running a few weeks a ago and have now started interval training with my little boy in his pushchair. Today we did 12 miles.

Before we set of, my sugars were 5.7 but while out went up to 16. I have been told by consultant to do a temp basal reduction of 30% but luckily I forgot to do this today. About 3 miles in, I put a temp basal on at 150% and had to do bolus corrections. Had to do another 2 bolus corrections and temp basal was on for 3 hours after my run - is this normal? Do other people need more insulin when out running? Also been on really LCHF all of this week so doesn't really make sense :s
Click to expand...

Hi Alexandra,
Ordinarily running would be regarded as moderate exercise, and so blood sugars can fall after 30mins or so - your basal reduction advice was based on this. If you are running at a good pace though - fast enough to elevate your heart rate, your body will have a stress response which in turn will trigger your liver to start dumping glucose into your blood stream. As you discovered, even after you finish your exercise the liver doesn't switch off straight away either.
It sounds although you did a good job of managing your blood glucose levels. Do keep an eye out for potential low blood sugars over the few hours following the run however - and also overnight .

You may find it useful to have a read through http://www.teambloodglucose.com/TeamBG/Type_1_Basics.html , and watch the type 1 case study movie.
Well done for getting fit and getting on so well with your running! Your son must be loving that too!:)
 
Back
Top