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A Level Pe Mrs Rex > Energy Systems > Flashcards

Energy Systems Flashcards

1
Q

Define VO2 max

A

The maximum volume of oxygen that can be taken in and diffused into the muscles per minute

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2
Q

What is sub-maximal oxygen deficit?

A

When there is not enough oxygen available at the start of exercise to fuel the aerobic energy system

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3
Q

What is the fuel source of the ATP-PC system?

A

Phosphocreatine

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4
Q

What is the intensity of the ATP- PC system?

A

Very high (95% of max HR)

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5
Q

What is the duration of the ATP-PC system and what is its timing of optimal functioning?

A

10 seconds (general lasting time)
2 - 4 seconds (peak power time)

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6
Q

What is the amount of energy produced in this time period?

A

1 ATP broken quickly to produce an explosive burst of energy

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7
Q

What is the speed of production?

A

ATP is broken instantaneously (quickest fuel source)

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8
Q

What is a by product of the ATP-PC system?

A

Inorganic phosphate (ADP) (+Pi)

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9
Q

What is the total time which the ATP-PC system is able to function in?

A

10 seconds at the beginning of exercise

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10
Q

What is the ATP PC system also called?

A

Alactic acid

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11
Q

What is the fuel source of the lactacid system?

A

Glycogen

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12
Q

What is the lactacid system also called?

A

Anaerobic Glycolytic system

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13
Q

What is the intensity of the lactacid system?

A

High (85% max hr)

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14
Q

What is the duration of the anaerobic Glycolytic (lactacid) system?

A

10-75 seconds

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15
Q

What is the peak performance timing of the lactacid (anaerobic system?

A

5-15 seconds

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16
Q

How much energy is produced during the lactacid system?

A

2-3 ATPs

17
Q

What is the speed of production of the lactacid system?

A

Fast and includes longer lasting chemical reactions

18
Q

What are the by-products of the lactacid system?(3)

A

Lactic acid
Hydrogen (H+ ions)
ADP

19
Q

How long is the lactacid system’s duration?

A

10-75 seconds until full depletion

20
Q

What is the fuel source of the aerobic system?

A
  • CHO
  • Fats (after CHO is fully depleted)
  • Protein (last resort)
21
Q

What is the intensity of the aerobic energy system?

A

Sub-maximal exercise working at less than 80% max heart rate

22
Q

What is the duration of the aerobic energy system?

A

Over 75 seconds

23
Q

How much energy is produced from the system?

A

CHO produces between 34-38 ATP per glucose molecule
Fats can produce up to 441 ATP per triglyceride molecule

A Level Pe Mrs Rex (20 decks)

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