Effect of a carbohydrate-electrolyte drink on endurance capacity during prolonged intermittent high intensity running.

Oct 17, 1998British journal of sports medicine

Carbohydrate-electrolyte drink may improve endurance during long, repeated intense runs

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Abstract

Performance times during endurance running were similar for both the water placebo and 6.9% carbohydrate-electrolyte solution trials, averaging 111.4 minutes.

  • There was no significant difference in performance times between the water placebo and carbohydrate-electrolyte solution trials.
  • Blood glucose levels were higher at 40 minutes in the carbohydrate trial compared to the placebo.
  • The total carbohydrate oxidation rates did not differ between the two trials.
  • These findings suggest that the carbohydrate-electrolyte solution may not influence fatigue onset during intermittent high-intensity running.

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