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What is Energy?
Is essentially the capacity to do work.
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What is Bioenergetics?
The study of energy in the human body.
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Bioenergetics, looks at how ______________________________
______________________________.
chemical energy (food) is converted into mechanical energy (work).
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During this conversion process, _________________________ are broken and this ________________________________ that is utilized to produce ________________
_____________________________________.
- chemical bonds
- releases energy
- work (muscle contractions)
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At the cellular level, food (carbohydrates, fats, protein) are converted into ________________
__________________________________.
adenosine triphosphate (ATP)
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What is ATP?
Is the body's energy source ( a high-energy molecule) used for bodily functions and physical activity.
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There are _________ main bioenergetic pathways that produce ATP.
three
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Which bioenergetic pathways are categorized as anaerobic (without oxygen (O2))?
- ATP-CP
- Glycolysis (lactate acid) pathways
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Which bioenergetic pathway is classified as aerobic (with oxygen (O2))?
Oxidative pathway
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Collectively, the three main bioenergetic pathways are known as _______________________________________.
the bioenergetic continuum.
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Energy:
The capacity to do work.
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Bioenergetics:
The study of energy in the human body.
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Adenosine triphosphate:
Energy storage and transfer unit within the cells of the body.
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ATP-CP system, aerobic or anaerobic?
Anaerobic
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ATP-CP use?
High-intensity, short-duration activity such as heavy weight training.
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ATP-CP time?
Up to approximately 10 sec. of activity.
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Glycolysis system, aerobic or anaerobic?
Anaerobic
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Glycolysis use?
Moderate to high-intensity, moderate duration activities such as a typical set of 8-12 repetitions.
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Glycolysis time?
30-50 sec. of activity.
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Oxidative system, aerobic or anaerobic?
Aerobic
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Oxidative use?
Lower-intensity, longer-duration activities such as walking on the treadmill for 20-30 min.
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Oxidative time?
Activities greater than 2 min.
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What are ATP and creatine phosphate (CP) called?
Phosphagens.
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The ATP-CP system is sometimes referred to as the __________________________________.
phosphagen system.
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The ATP-CP system provides energy for _______________________________________
_______________________________________.
primarily high-intensity, short-duration bouts of exercise or activity.
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ATP-CP characteristics:
- Used in power and strength forms of training, where heavy loads are used with only a few repetitions or during short sprinting events.
- Activated at the onset of any activity, regardless of intensity.
- Ability to produce energy very rapidly in comparison to the other pathways.
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Anaerobic:
- Without oxygen.
- Activities that do no require oxygen (O2).
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