Exercise drives insulin to work more efficiently and thus the often seen effect is hypoglycemia during or after exercise. Does the time of insulin adjustment make a difference?
According to the OmniTIME study, participants who reduced basal insulin delivery starting 90 minutes before at a reduced rate of 50-80% resulted in a significant lower incidence of hypoglycemia when compared to those who suspended insulin at the onset of activity.
The reduction of basal insulin delivery early also helped keep BG more stable after the workout as well as post meal and overnight.
While there is a lot of individual adjustment that comes with exercise adjustment, this study is one that shows a good way to start. It takes some planning, but it is possible to successfully exercise without starting with a high BG or having to eat a load of food to prevent a drop in BG.
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