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TERM 1
Fats
DEFINITION 1 Fats are converted into fatty acids for transport in the blood stream and stored in the body as triglycerides in either skeletal muscle or adipose tissue. TERM 2
Carbohydrates
DEFINITION 2 Carbohydrates are broken down into glucose and transported via the blood to the muscles for energy release. If not required for immediate use, this glucose will be stored in the muscle as glycogen. If muscle and liver glycogen stores are full, excess glucose is converted to triglyceride (fat) and stored in the body as adipose tissue. TERM 3
Proteins
DEFINITION 3 Proteins are used primarily for muscle growth and repair. They are only used as a nutrient fuel in extreme circumstances. TERM 4
Amount of Energy Stored in 1g of Fat and
Carbohydrate
DEFINITION 4 Fat = 37kj (9Kcal) Carbohydrate = 17kj (4kcal) TERM 5
Aerobic Lipolysis
DEFINITION 5 The process of fats being broken down to resynthesise ATP requiring oxygen
TERM 6
Aerobic Glycolysis
DEFINITION 6 The process ofcarbohydrates being broken down to resynthesise ATP requiring oxygen TERM 7
Anaerobic Glycolysis
DEFINITION 7 The process ofcarbohydrates being broken down to resynthesise ATP withou t oxygen TERM 8
Dominant Energy Source at Low Intensity
Exercise
DEFINITION 8 Fats are the dominant energy source at low intensity exercise as oxygen delivery is not a limiting factor and the fat molecules require more oxygen to be broken down. TERM 9
Dominant Energy Source at High Intensity
Exercise
DEFINITION 9 Carbohydrates are the dominant energy source at high intensity exercise as they require considerably less oxygen to break down. TERM 10
"Hitting the wall"
DEFINITION 10 "Hitting the wall" refers to the point where muscle glycogen is depleted and fat becomes the dominant fuel source.
