Podcast
Questions and Answers
What is the name of the metabolic system that uses stored ATP and PC?
What is the name of the metabolic system that uses stored ATP and PC?
What is the maximum duration of activity supported by the Anaerobic (alactic) system?
What is the maximum duration of activity supported by the Anaerobic (alactic) system?
What is the purpose of modifications to the basic starting positions?
What is the purpose of modifications to the basic starting positions?
What is the name of the starting position where the individual is upside down?
What is the name of the starting position where the individual is upside down?
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What is the primary energy source for the Aerobic system?
What is the primary energy source for the Aerobic system?
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What happens when the Anaerobic system's energy stores are depleted?
What happens when the Anaerobic system's energy stores are depleted?
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What is the primary reason for contraction stopping in the Anaerobic: lactic acid system?
What is the primary reason for contraction stopping in the Anaerobic: lactic acid system?
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What is the purpose of increasing or decreasing the size of the base in starting positions?
What is the purpose of increasing or decreasing the size of the base in starting positions?
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Which of the following activities is an example of the Anaerobic: lactic acid system?
Which of the following activities is an example of the Anaerobic: lactic acid system?
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What is the purpose of providing adequate fixation of the body in starting positions?
What is the purpose of providing adequate fixation of the body in starting positions?
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What is the characteristic of the Aerobic: oxygen system?
What is the characteristic of the Aerobic: oxygen system?
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What determines the difficulty of an exercise in a starting position?
What determines the difficulty of an exercise in a starting position?
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Study Notes
Metabolic Systems
- The anaerobic (alactic) system uses stored ATP and PC, is used for short bursts of up to 15 seconds, and stops when ATP and PC are depleted (e.g., quick dash).
- The anaerobic (lactic acid) system uses glycogen, is used for fast activity up to 2 minutes, and stops due to lactic acid build-up and oxygen debt (e.g., 400-meter run).
- The aerobic (oxygen) system uses glycogen, fatty acids, and triglycerides, is used for slow, steady activity indefinitely, and stops when exhaustion is reached (e.g., jogging).
Starting Positions
- There are five basic starting positions: lying (supine), kneeling, sitting, standing, and hanging.
- Modifications to these positions can:
- Raise or lower the centre of gravity
- Increase or decrease the size of the base to change stability
- Increase or decrease leverage
- Provide fixation of the body for specific movements
- Increase or decrease muscle work required to maintain the position
- Ensure maximum support for relaxation
Metabolic Systems
- The anaerobic (alactic) system uses stored ATP and PC, is used for short bursts of up to 15 seconds, and stops when ATP and PC are depleted (e.g., quick dash).
- The anaerobic (lactic acid) system uses glycogen, is used for fast activity up to 2 minutes, and stops due to lactic acid build-up and oxygen debt (e.g., 400-meter run).
- The aerobic (oxygen) system uses glycogen, fatty acids, and triglycerides, is used for slow, steady activity indefinitely, and stops when exhaustion is reached (e.g., jogging).
Starting Positions
- There are five basic starting positions: lying (supine), kneeling, sitting, standing, and hanging.
- Modifications to these positions can:
- Raise or lower the centre of gravity
- Increase or decrease the size of the base to change stability
- Increase or decrease leverage
- Provide fixation of the body for specific movements
- Increase or decrease muscle work required to maintain the position
- Ensure maximum support for relaxation
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Description
Learn about the anaerobic and aerobic metabolic systems, including the ATP-PC system, lactic acid system, and oxygen system, and how they are used in different exercises and activities.
