Training the Gut Flashcards
With runners for example why are GI issues so common in sports events even if the CHO intake is no where near the maximal upper limit of 90g/hour.
With longer events athletes do not tend to be practicing their consumption practices in training, as it is unlikely they will be doing a marathon every week.
How does intensity effect gastric emptying ?
Above 70-75% emptying reduced significantly
This is likely because of the reduced stomach blood flows at higher intensities.
What can be a method to enhance gastric emptying and tolerable CHO volumes during exercise ?
High CHO diets. This is because being more used to a high CHO intake can allow this to allowed higher than the 90g/h volumes seen.
What is the prevalence, symptoms and causes for GI discomfort during exercise
Prevalence is 10-90% depending on the type of event being done
Most frequent symptoms are dizziness, nausea, stomach cramps, vomiting and diarrhea.
occur With ingestion of concentrated carbs, fibre, fat and protein.
What is more prevalent for driving gastric emptying, CHO or fluid osmolality ?
Fluid osmolality, those with very high concentrations slowed emptying.
