Here is a quote from Berardi:
“Besides, the effects of exercise on fuel mobilization are more powerful than a small insulin increase.”
Here are 4 studies that I posted:
- Int J Sports Med 1999 Aug;20(6):384-9
Cardiovascular and metabolic responses during 30 minutes of treadmill exercise shortly after consuming a small, high-carbohydrate meal.
Diboll DC, Boone WT, Lindsey LR.
Procedure: Subjects either fasted or consumed a small, high-carb meal prior to 30 mins of treadmill running.
Results: No difference in substrate utilization during exercise.
- Appl Physiol 1991 Dec;71(6):2088-93
Effect of feeding and fasting on excess postexercise oxygen consumption.
Bahr R, Sejersted OM.
Procedure: Subjects fasted or consumed a small meal prior to strenous exercise.
Results: No difference in EPOC (substrate utilization post exercise) between groups.
- : J Appl Physiol 1999 Feb;86(2):479-87
Respiratory gas-exchange ratios during graded exercise in fed and fasted trained and untrained men.
Bergman BC, Brooks GA.
Procedure: Subjects exercised after an overnight fast or 3 hours after breakfast.
Results: There was a difference at extremely low intensities, but not at intensities that any T-man would work out at.
- : Med Sci Sports Exerc 1999 Mar;31(3):464-71
The effect of a preexercise meal on time to fatigue during prolonged cycling exercise.
Schabort EJ, Bosch AN, Weltan SM, Noakes TD.
Procedure: Subjects exercised in a fasted state or 3 hours after consuming 100g of carbs.
Results: It took longer for the CHO group to fatigue, and again, no difference in substrate utilization.
Here is another quote from Berardi:
“If you check out my Biology Bash In Barrie article I covered a study (I know, it’s in VITRO data) that showed that exercised muscle incubated in a carb and fat medium preferentially stores carbs and burns fat (even in the presence of insulin).”
Here is a study posted by Berardi:
“The effects of various intensities and durations of exercise with and without glucose in milk ingestion on postexercise oxygen consumption. Lee YS, Ha MS, Lee YJ. This study shows that during high intensity exercise with supplement nutrient intake (glucose+milk) actually INCREASES EPOC without changing RER. This means increase total calorie expenditure at the same relative proportion of fat oxidized (i.e. more total fat burned with the drink provision) (The RER was measured 2 hours post exercise).”