Energy Systems

Question 1

What energy system(s) are used during a 100m race?

Answer 1

Answer: Phosphagen (under 6 seconds)

Activities that last 6-30seconds primarily utilize the phosphagen and glycolytic.

30-120s = glycolytic

120-180s (2-3min) = glycolytic and oxidative

Question 2

What is the energy system + substrate for a 400m swim ? (>4minutes)

Answer 2

Liver glycogen and fatty acids

(muscle glycogen is used in more moderate to high intensity activities)
(creatine phosphate (CP) used in extremely high intensity, short duration activities)

Question 3

Series of reactions in which free fatty acids are broken down, resulting in the formation of Acetyl-CoA and hydrogen protons?

Answer 3

Beta oxidation

Question 4

What energy system utilizes the electron transport chain?

Answer 4

Aerobic training (utilizes slow glycolysis and fat oxidation for ATP production, which uses ETC).