Training improves the muscles' ability to use which of the following fuel sources?
A)Glucose
B)Amino acids
C)Fatty acids
D)Ketones

Question

Quizplus · Accepted Answer

Training improves the muscles' ability to use fatty acids as fuel. This occurs through an increase in the number and activity of enzymes involved in the breakdown of fat and the transport of fatty acids into the mitochondria where they are used for energy production. While training can also improve the muscles' ability to use glucose as fuel, this is not as significant as the improvement in fatty acid utilization. Amino acids and ketones are not major fuel sources for muscles during exercise.

Training Improves the Muscles' Ability to Use Which of the Following