Energy systems

Question 1

Describe the ATP-PC energy system - include time, energy released, types of activity, intensity and food fuel

Answer 1

TIME: Dominant from 1-5 seconds with peak power between 2&4 seconds runs out at 10 seconds
ENERGY RELEASED: Immediately avaliable, simplest and quickest system for breaking down PC to create ATP
FOOD SOURCES: Food is chemical not food based because of the time and the need for immediate release.
TYPES OF ACTIVITY: Sprinting, long jump, high jump,
INTENSITY: High

Question 2

Describe the Anaerobic glycolysis energy system - include time, energy released, types of activity, intensity and food fuel

Answer 2

TIME: This system is normally used for activities that last between 10 and 75 seconds with peak power between 5 and 15 seconds.
ENERGY RELEASED: The energy is obtained by breaking down glucose/ glycogen as oxygen is not present, glycogen is not completely broken down.
FOOD SOURCE: Carbohydrates is the preferred fuel.
TYPES OF ACTIVITY: 100m freestyle, pommel horse routine gymnastics
INTENSITY: Medium to high

Question 3

Describe aerobic energy system - include time, energy released, types of activity, intensity and food fuel.

Answer 3

TIME: Peak power occurs between 1 minute and 1 minute 30 seconds and is dominant for activities that are more then 75 seconds.
ENERGY RELEASED: The complete breakdown of glycogen with no fatiguing toxic by products.
FOOD SOURCE: Carbohydrates is preferred food fuel. However, at rest aerobic system uses fats as the fuel source.
TYPES OF ACTIVITY: Marathons, midfielder in footy, c in netball.
INTENSITY: Low