When you exercise you release energy in the form of glucose from your muscles
This result’s in elevated readings at the time the problem is about 6-8 hrs later usually you have to pay back
This may result in having a hypo 6-8 hrs post exercise to prevent this occurring you can either sip lucozade whilst exercising or reduce
Your insulin at that meal time by 1 unit maybe 2 dependand on the intensity of the exercise
Hope this makes sense
See web site
www.runsweet.com this is the guy who taught Redgrave through the Olympics