Fat and Carbohydrate: Exercise Physiology Flashcards
A lot of “training” involves becoming better at ____________.
breaking down fatty acids
Six amino acids can be ___________.
metabolized to burn fuel (alanine is just pyruvate with an amino group)
When exercise begins, _________ is the primary fuel. With sustained low-intensity exercise, _________ predominates as the fuel source. As you progressively increase in intensity, ___________ and then _________ occur.
glycolysis; fat oxidation; glucose oxidation (TCA); lactic acid production
_____________ have been shown to have lower CVD risk than thin people who are unfit.
Obese people who are fit
Low glycogen stores have been shown to lead to what effects on exercise?
Decreased duration and intensity
Catecholamines phosphorylate what hormone that leads to release of fatty acids?
Hormone-sensitive lipase
One of the most consistent phenomena noticed with training is _____________.
that those who train produce lower lactate levels with the same expenditure and rely more on lipolysis and less on glycogenolysis
Training has been shown to increase levels of ___________ of skeletal muscle that lead to increased efflux of lactic acid.
metacarboxylates
During exercise, about ______ percent of glucose comes from lactate (via gluconeogenesis).
30
Six amino acids can be metabolized by muscle: _____________.
aspartate, glutamate, alanine, and the branched chain
As fat oxidation decreases, ________ increases.
lactate production
