Effect of carbohydrate feedings during high-intensity exercise.

  title={Effect of carbohydrate feedings during high-intensity exercise.},
  author={Andrew R Coggan and Edward F. Coyle},
  journal={Journal of applied physiology},
  volume={65 4},
To determine the upper limits of steady-state exercise performance and carbohydrate oxidation late in exercise, seven trained men were studied on two occasions during prolonged cycling that alternated every 15 min between approximately 60% and approximately 85% of VO2max. When fed a sweet placebo throughout exercise, plasma glucose and respiratory exchange ratio (R) declined (P less than 0.05) from 5.0 +/- 0.1 mM and 0.91 +/- 0.01 after 30 min (i.e., at 85% VO2max) to 3.7 +/- 0.3 mM and 0.79… CONTINUE READING

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