Balance of carbohydrate and lipid utilization during exercise: the "crossover" concept.

@article{Brooks1994BalanceOC,
  title={Balance of carbohydrate and lipid utilization during exercise: the "crossover" concept.},
  author={George A Brooks and Jacques Mercier},
  journal={Journal of applied physiology},
  year={1994},
  volume={76 6},
  pages={
          2253-61
        }
}
The "crossover" concept represents a theoretical means by which one can understand the effects of exercise intensity and prior endurance training on the balance of carbohydrate (CHO) and lipid metabolism during sustained exercise. According to the crossover concept, endurance training results in muscular biochemical adaptations that enhance lipid oxidation as well as decrease the sympathetic nervous system responses to given submaximal exercise stresses. These adaptations promote lipid… 
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