Energy Systems Flashcards
how many calories are in fat, carbs,protein and alcohol?
F-9
C-4
P-4
A-7
where is energy stored?
-bodyfat/adipose tissue
-glycogen
-glucose
what are the storage sites?
where is glycogen stored?
-muscle
-liver
1-digest food into smaller particles
ATP
how do we use energy- what are the energy systems?
1-adenosine triphosphate(ATP)-phosphocreatine (PCR)
2-Anaerobic Glycolisis
3-Aerobic Glycolisis
What are the adaptations to mitochondria with exercise
-muscle can store more glucose
-they double in size
-there are more of them
where is glucose stored
-bloodstream
-skeletal muscle as glycogen - chain of glucose
-in liver
what is glycolysis?
the breakdown of glucose in the cell cytoplasm
describe glycolysis
what is the time frame for anaerobic glycolysis
-15s-2mins
-fast
-2 ATP produced
what is the time frame for aerobic glycolysis
-over 2 mins
-unrestricted
-greatest amount of energy produced over time
-fat utilized (fat is used for energy)
-requires lower intensity and out put
what are the exercise adaptations in the mitochondria
how can we improve energy system usage?
-
what energy are you using at rest?
-primarly fatty acids
-then glucose
-last amino acids
what energy are you using at moderate intensity?
half fatty acids half glucose
little amino acids
what energy are you using at high intensity?
only glucose
what is the relationship between VO2 max and energy usage?
the higher the VO2, the more carbohydrates used
at around 30 percent, carbs crosses fat.
describe the crossover point in regard to energy usage in exercise over time
***it is glycogen and glucose depletion
it is because fat c
what is the relationship between exercise time and energy usage
over time , more fat is used, it crosses over at around 50-60 mins
describe protein as a source of energy
amino acids can be converted to glucose in the liver (gluconeogenesis)
it accounts for around 2-5% of total energy production during exercise
