Unit 6 Fats Flashcards
is a concentrated source of energy (9
kcal/gFAT).
Fat
it is not an efficient fuel compared to
carbohydrates with respect to oxygen
consumption.
Fat
Both _____ provide fuel for ATP
productions.
CHO and Fats
come mainly from the plasma FA
and muscle triglyceride.
Fatty acids
Major source of light to moderate intensity
activities.
Fatty acids
Mild intensity exercises – ___% of the total
energy is furnished by fats.
80
_____________contribute significantly to
the level of plasma free FA as the exercise
intensity increases.
Muscle triglycerides
High intensity exercises _____ becomes the preferred energy source.
CHO
______________ improves the body’s ability to utilize fats for energy through mobilizing fats from adipocytes = making more FA available to the working muscles.
It also improves the working muscle’s capacity to oxidize fats that are delivered.
Endurance training
- Increased muscle blood flow
- improved transport of fats into the muscle cells,
- larger and more numerous mitochondria
- and increased quantities of enzymes involved in fat metabolism
Adaptations that help explain the enhanced ability to utilize fats for energy:
However, fats are still not the _________ for working active muscles particularly at higher levels of exercise intensity.
Most efficient fuel
This limitation is due to the___________ production as compared to CHO.
Relatively slow rate of ATP
Fats must be ___________metabolized and that fat metabolism if a complicated process.
aerobically
AMDR for fat intake for adults
20-35%
– lower fat and higher CHO
intake than sprinters and short-distance runners
Endurance athletes