Type 1 control with exercise, need a little advice,

Hi Alister,
Your Mum is right in one way, you need some circulating insulin and it is important that you have enough but you did have some from your basal (and probably some of your own still)
During exercise , insulin needs often fall considerably. Whilst exercising and for a while afterwards some (but not normally enough) glucose is able to enter the cells without insulin and the cells also become more sensitive. As you were having hypos you still had too much insulin for the amount of food you ate and the exercise you did. It is a balancing act and not always easy to get right. Most people are able to reduce, though not necessarily cut out, their bolus insulin before and after sustained exercise, even after the honeymoon period,
At this stage I think its important to get advice from your diabetes team (the nurse or a doctor) It is possible that they might suggest that you reduce your lantus for heavy exercise days. I used to have to do this.
(I now use a pump and I can vary my basal at will, makes things a lot easier )
The testing you did though is imperative. Even though you didn't have high levels after eating this time, it may not be the same next. Your insulin needs will be changing rapidly, both because of your age and because of your 'honeymoon'. If you spike too high after a meal without bolus insulin and then try to exercise there may not be enough circulating insulin. In this case your blood glucose can rise higher and you can rapidly develop ketones. (It's back to the balancing act)
.
There is a very good site which explains the mechanics of exercise and sport which might be some help.
http://www.runsweet.com/


I've just looked at your videos, it looks like a lot of fun but I can see that you're using up a huge amount of energy.

Great jumps.