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14 Cards in this Set
- Front
- Back
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What molecule "drives" muscle metabolism during exercise |
ADP |
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Which energy system has the slowest rate of ATP production? |
aerobic respiration |
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Which energy system has the greatest capacity to produce ATP? |
aerobic respiration |
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What does "ATP demand" represent when referring to exercise? |
the amount of energy needed to perform the action |
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What determines the level of ATP demand during exercise? |
the intensity of the exercise |
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What does the acronym VO2 stand for? What does it represent? |
volume of oxygen consumed the amount of oxygen consumed to make energy |
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What does "steady-state" VO2 mean? Approximately how long does it take to achieve steady-state? |
when the VO2 stops changing 3 minutes |
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Why do aerobic fitness tests usually consist of stages that are at least 3 minutes long? |
after 3 minutes is when the aerobic respiration system is at full use |
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What does the O2 deficit represent? When does it occur? |
when ATP is coming from anaerobic metabolism (ATP-CP and glycolysis) before reaching steady-state |
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What is VO2max? Is it possible to exercise at intensities above VO2max? |
the maximum amount of oxygen that can be used to make ATP yes (the anaerobic systems provide energy) |
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How does the rest-to-exercise transition differ between a trained vs. untrained individual? |
trained individuals have a smaller O2 deficit than untrained individuals |
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What is one underlying reason that a trained individual is able to respond this way? |
more mitochondria (means more O2 use) |
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What does the acronym EPOC stand for? What are some of the reasons/uses for EPOC? |
Excess Post-exercise Oxygen Consumption to return the body to homeostasis |
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What are the primary and secondary training variables that determine the extent of EPOC? |
intensity duration |
