Is the same glycogen consumption during exercise in different altitudes? eg. 1 hour running at 0masl vs 1200masl vs 3600 masl? So the CHO replacement wold be the same at three enviroments?
I will measure the blood glucose after a exercisesession in three different enviroments, im looking for evidence reporting altitude differences in glucogen consuption because of thermorregulation process or hypoxic conditions
What tissue do you want to measure glycogen consumption in? Muscle? Liver? Energy consumption during running for an hour will mostly come from muscle glycogen. Measuring blood glucose will not give you any information about muscle glycogen utilization. Breakdown of muscle glycogen does not result in release of glucose into the blood.
Thanks Gordon, what do you think is going to happend between altitudes comparison...?
Do you intend to have the subjects run at the same speed at all three altitudes? If so, what speed? An easy speed? A hard speed? Maximal oxygen uptake (VO2max) will be considerably reduced at an altitude of 3600 meters, i.e., by 20-25%. Even an easy speed at sea level can be hard at 3600 meters. Alternatively, you could have the subjects run at a speed eliciting the same relative % of VO2max at each of the three altitudes. All of these factors will affect the relative utilization of carbohydrate and fat.
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