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Food Fuels & Energy Systems
Food Fuels & Energy Systems
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1
Which of the following would be the most appropriate recovery for an 800m runner?
rest
carb loading
active recovery
passive recovery
2
Which of the following fuels provides the greatest energy yield?
Fats
Carbohydrates
Glycogen
Phosphocreatine
3
How is glucose stored in the body?
as glycogen in the muscle & liver
as glucose in the muscles
as FFA in adipose tissue
as amino acids in the heart
4
What is the body's preferred fuel source during moderate sub-maximal activity?
Proteins
Fats
Carbohydrates
Creatine Phosphate
5
Which of the following is a by-product of the aerobic energy system?
Hydrogen ions
Lactic acid
Calcium ions
Carbon dioxide
6
Glycogen sparing is;
converting from carbs to fats
increasing fat contribution to spare glycogen
increasing protein contribution to spare glycogen
converting from fats to carbs
7
When carbohydrates are broken down they are stored as:
Triglycerides in adipose tissue
Glucose in the blood
Free fatty acids in adipose tissue
Glycogen in the muscles & Liver
8
When oxygen supply equals oxygen demand the athlete is experiencing:
EPOC
Steady state
Oxygen deficit
Lactate threshold
9
Who would be the least likely to experience multiple steady states in their event?
Triathlete
100m sprinter
AFL Footballer
fun runner
10
Which of the following energy systems is able to provide energy immediately?
Aerobic Glycolysis
ATP-PC
Anaerobic Glycolysis
Aerobic Lipolysis
11
Which of the following is not a high GI food:
lollies
chocolate
whole grain pasta
honey
12
To carbo load, an athlete needs to increase their carb intake to:
<70%
>70%
>80%
<80%
13
What is the athletes ventilation during steady state?
0.5 L/min
1.7 L/min
2.0 L/min
1.2 L/min
14
Above speeds of 12km/h lactate production exceeds removal
True
False
15
Which type of athlete would most benefit from carbo loading?
Ironman
Basketball player
Middle distance runner
400m hurdler
16
The graph below shows active compared to passive recovery. Which line is passive?
Blue
Red
17
Which energy system increases its contribution to provide additional energy at the end of a continuous aerobic event?
Aerobic glycolysis
Anaerobic glycolysis
ATP-PC
Aerobic lipolysis
18
Which of the following is aided by passive recovery?
blood glucose replenishment
muscle creatine phosphate replenishment
liver glucose replenishment
muscle glucogen replenishment
19
The by-products of the ATP-PC system are:
ATP & CP
ADP & CP
Pi & CP
Pi & ADP
20
When does the aerobic system take of as the dominant system?
30 secs
12 secs
7 secs
80 secs
21
The correct term for 'hitting the wall' is:
Hypoglucosamein
Hypoglycaemia
Hyperglycaemia
Hypergluconogen
22
Which of the following is not a consequence of elevated body temperature?
Increased rate of glycolysis
Redistribution of blood to the skin
Increased reliance on fat stores
Electrolyte imbalance
23
In an 800m event lasting 2mins, which of the following is the most likely cause of fatigue?
Glycogen depletion
Accumulation of metabolic by-products
Increased fat contribution
Elevated body temperature
24
Which line represents the anaerobic glycolysis system?
C
D
B
A
