Energy Systems

Question 1

What are the three energy systems?

Answer 1

ATP-PC
Lactic acid
Aerobic

Question 2

What are the two different types of muscles?

Answer 2

Voluntary- you cannot control them. eg. Cardiac muscle

Involuntary- you can control them. eg. Quads

Question 3

What is interplay?

Answer 3

All of the three systems working together but at different intensity’s

Question 4

Slow twitch

Answer 4

Last for longer periods of time. eg. Long distance runner, marathon runner

Question 5

Fast twitch

Answer 5

Foe explosive sports. eg. Sprinting, field events. But can’t sustain endurance as long in muscles. They are quickly fatigued.

Question 6

What are the two types of muscle fibres?

Answer 6

Slow twitch- dark in colour
Fast twitch- light in colour

Everyone is born with one of the types of muscle fibres

Question 7

ATP-CP
Component of fitness, time of effectiveness, intensity, activities/sports, muscle fibre type, fitness tests, speed of muscle contraction, and fatigue

Answer 7

Component if fitness: muscular strength,power,reaction time, speed
Time of effectiveness: first 10 seconds
Intensity: maximal, greater than 95%
Activities/sports: 100m sprint, shot put, weight lifting, high/long jump
Muscle fibre type: fast twitch (white)
Fitness tests: vertical jump, bicep curl
Speed of muscle contraction: very rapid
Fatigue: fast

Question 8

Lactic acid
Component of fitness, time of effectiveness, intensity, activities or sports, muscle fibre type, fitness tests, speed of muscle contraction, and fatigue

Answer 8

Component of fitness: muscular endurance 
Time of effectiveness: 10-30 seconds 
Intensity: near maximal (85-95%)
Activities/sport: 200-400m sprint
Muscle fibre type: fast twitch (white), but some red fibres
Fitness tests: push ups, sit ups
Speed of muscle contraction: rapid
Fatigue: fast

Question 9

Aerobic
Component of fitness, time of effectiveness, intensity, activities or sports, muscle fibre type, fitness tests, speed of muscle contraction, and fatigue

Answer 9

Component of fitness: cardio respiratory endurance 
Time of effectiveness: 30+ seconds
Intensity: sub maximal (less than 85%)
Activities/sport: long duration activities, marathon runner, footballer
Muscle fibre type: slow twitch (red)
Fitness tests: 12 min run, beep test
Speed of muscle contraction: slow
Fatigue: slow

Question 10

What fuels are used in the energy system?

Answer 10

Carbohydrates, fats and proteins (last resort)

Question 11

What is the role of ATP?

Answer 11

To provide energy to the muscles

Question 12

Explain lactic acid

Answer 12

Used when little amount of oxygen is needed in the body. It if for height intensity sports

Question 13

What are by-products of each energy system?

Answer 13

ATP-nil
Lactic acid- sore legs
Aerobic-water

Question 14

What is the predominant fuel at low intensity?

Answer 14

Carbohydrates

Question 15

How many systems can work at once?

Answer 15

All of the three systems can work at once

Question 16

Explain the interaction between the three systems

Answer 16

Through interplay. When all systems work together but at different intensities

Question 17

Which system benefits the most from training?

Answer 17

All systems are trainable, but mainly the aerobic system

Question 18

What does food equal

Answer 18

Energy (ATP)

Question 19

Which of the systems is oxygen required

Answer 19

ATP- no
Lactic acid- no
Aerobic- yes

Question 20

How much PC is stored in muscles

Answer 20

1 second