Resistance exercise performed in the morning while fasted (AM-FAST) provides a significantly more consistent glycemic response compared to afternoon fed sessions (PM-FED).
The within-participant standard deviation (wpSD) of glucose levels is lower in AM-FAST, facilitating better exercise-related diabetes management.
AM-FAST tends to cause a moderate rise in blood glucose during exercise, whereas PM-FED often results in a decrease, increasing short-term hypoglycemia risk.
While AM-FAST is more predictable, it is associated with a higher percentage of time in hyperglycemia in the six-hour post-exercise period.
