Which of the following is true for the first 30 minutes of heavy exercise?
A)Most energy is derived from glycogen and plasma glucose.
B)The percentage of energy obtained from plasma free fatty acids exceeds that of mild exercise.
C)The percentage of energy obtain from plasma glucose is less than that of moderate exercise.
D)All of the choices are correct.

Question

Quizplus · Accepted Answer

During the first 30 minutes of heavy exercise, the majority of energy is derived from glycogen and plasma glucose, as the body's immediate energy reserves are utilized before switching to stored fat for fuel. This is in contrast to mild exercise, where the percentage of energy obtained from plasma free fatty acids exceeds that of heavy exercise, and moderate exercise, where the percentage of energy obtained from plasma glucose is higher than that of heavy exercise. Therefore, only choice A is true for the first 30 minutes of heavy exercise.

Which of the Following Is True for the First 30