@shivles, it really depends on what kind of exercise and what treatment you are on.
The advice to eat a carby snack is used when you are eating a higher carb diet, doing aerobic exercise and have an injection of basal insulin. If you are using a pump, you can manage basal rates to lower them when doing aerobic exercise to limit the risk of hypo, regardless of diet, and if you are eating LCHF and thus are switched to lipid metabolism, aerobic exercise will burn fats rather than glucose so you shouldn't need the carbs.
If you are doing anaerobic exercise, you tend to find that increases glucose levels anyway, so with no bolus IOB, you may need insulin rather than carbs.
As @tim2000s mentioned it really depends on the type, duration and intensity of your workout. Aerobic usually drops BS, while anaerobic tends to cause an increase in type 1's. Moderate to high intensity resistance shows less of an immediate effect but more of a long term effect (though study population is still small). Longer sets of resistance training will most likely use the anaerobic system eventually, it can even start from 6 reps depending on the intensity (= % of 1RM).
I think @shivles is asking for her daughter, who is 16 months? So exercise in this context is more likely to be sporadic toddling than intensive resistance training?
I think @shivles is asking for her daughter, who is 16 months? So exercise in this context is more likely to be sporadic toddling than intensive resistance training?