TRAINING MODIFIES FUEL USE
Phillips, S. M., Green, H. J., Tarnopolsky, M. A., Heigenhauser, G. J., Hill, R. E., & Grant, S. M. (1996), Adaptations in fat and carbohydrate turnover and oxidation following training. Medicine and Science in Exercise and Sports, 28(5), Supplement abstract 6.
Long-term endurance training in originally untrained males induced a progressive increase in fat utilization. Less reliance was placed on plasma free fatty acid oxidation and a greater oxidation of intramuscular triglycerides.
Implication. Through training, the body learns to increase its reliance on fat utilization in exercise.
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