Measurement Method of Carbohydrate Metabolism during Prolonged Exercise by Monitoring 13CO2 as Tracer

The discriminative measurement method of the dynamic metabolic change of an administered glucose and a pre-reserved carbohydrate is clearly demonstrated during the prolonged exercise (75 W bicycle ergometer work). The administered glucose is an ordinary commercial available medical use. The isotopic abundance difference ratio of the glucose is as high as 20‰ comparing to that of the expired CO2 before the administration. This paper proposed the discriminative measurement method and showed a trail measurement for inspecting the method.