Adapting to Exercise - Bioenergetics

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What stimulates structural and functional adaptions to improve performance in specific physical tasks?
Training
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What is overload?
Systems or tissues exposed to stimuli beyond what it is accustomed to in order to get training effect
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What is specificity?
Training effects are specific to muscles involved, fibres recruited and principle energy systems involved
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What is reversibility?
Gains can be as quickly lost as they are gained when the stimulus is removed
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2-3 months of endurance training usually increases VO2 max by?
15-20%
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Endurance training should be done at...
>50% VO2 max
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A large contribution of improving skeletal muscle bioenergetics is due to...
Improved muscle O2 extraction
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What is not a metabolic adaption to endurance training?
Less substrate oxidation
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What happens to mitochondria content with endurance training?
Increases
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How does mitochondrial volume correlate with VO2 max?
Positive
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A greater mitochondrial oxidative capacity after training does not result in...
Larger use of ATP and PCr at onset
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Endurance training has what effect on GP and PFK activity
Lowers GP activity and PFK activity
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After endurance training, is there more glycolysis or oxidative phosphorylation taking place?
Oxidative phosphorylation
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Endurance training has what impact on fuel utilisation?
More fat oxidation, more CHO oxidation
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What is not an effect of using more fat oxidation after endurance training?
Quicker rate of reaction
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After endurance training, there is higher mobilisation and transport of FFA into muscle?
True
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There are decreased intramuscular triacyglycerol stores after endurance training?
False
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There is decreased capacity for beta-oxidation, TCA cycle and OXPHOS after endurance training?
False
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What is not a reason for the increased capacity for CHO metabolism?
Increased liver stores of glycogen
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What is not a way that endurance training improves acid base balance?
Decreased reliance on fat reduced pyruvate formation
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How does interval training improve anaerobic capacity of muscle?
Increased buffering capacity of H+
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How does interval training affect activity of GP, PFK and LDH?
Increases activity of all
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Endurance training can induce fibre type shifts from fast to slow muscle?
True
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What is not a feature of type I muscle fibre?
Higher ATPase activity
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What increases muscle fibre cross-sectional area to increase force production?
Resistance training
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What is not a result of strength training?
Increases mitochondrial capacity
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What is described as the maximal force that a muscle can generate
Muscular strength
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Other cards in this set

Card 2

Front

What is overload?

Back

Systems or tissues exposed to stimuli beyond what it is accustomed to in order to get training effect

Card 3

Front

What is specificity?

Back

Preview of the front of card 3

Card 4

Front

What is reversibility?

Back

Preview of the front of card 4

Card 5

Front

2-3 months of endurance training usually increases VO2 max by?

Back

Preview of the front of card 5
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