I’m surprised this game been mentioned yet. I have three commonly used basal profiles. "Control-Iq"is my standard, “Low_iq” is 50% of my standard, and “High_iq” is 150% of my standard.
Part of getting ready for high activity is “getting stupid”, as we call it in this house, which means switching to the “low_iq” profile. (Hey, it makes me laugh.). As well as switching over you the exercise activity.
That can handle basic exercise and general physical labor on the farm for me, but all Control-IQ can do is withhold your insulin. It can’t overcome basic physiology. If you’re burning up more carbs then you have on board, and your basal delivery is fully suspended, then you’re going to have to eat some more. Usually you only burn carbs hard for the first 15-20 minutes of exercise, after that you’re supposed to fuel with fat instead, hence the “second wind” effect. Might also be why I don’t have a massive problem, because I’m usually going into exercise after a meal, so there’s enough carb on board to get me through those first minutes.
Also remember that correction factor is critical to how Control-Iq works. Too high of a number here, and you cripple the system. It is incapable of intervening, and your stuck in whatever direction you’re headed. If you’re going low and Control-IQ is still delivering basal, then this might be a factor.
Too low of a number here, and you get the crazy roller coaster of highs and lows. It both withholds too much insulin when you’re low, resulting in a rebound high, AND gives too much correction insulin when you’re high, resulting in a rebound low.