I am not a physician, but am a long
-time type 1 diabetic who also take
s Lantus and humalog
insulins and who has also done weight training at times in my life. I think you may be able to
understand what is happening if you look at how
your body immediately responds to
both kinds of excercise and then look at what happens hours later after both kinds of exercise. In cardio exercise, you are work
ing hard for a reasonably short period of time, burning LOTS of carbs and calories quickly.