Some athletes use caffeine to enhance their athletic performance because it has been shown to
A) increase muscle flexibility and strength.
B) increase the use of fat as a fuel source.
C) regenerate ATP for energy.
D) increase the uptake of glucose by muscle cells.

Question

Quizplus · Accepted Answer

Caffeine has been shown to increase the use of fat as a fuel source during exercise. This can lead to improved endurance and delayed fatigue. However, caffeine does not directly increase muscle flexibility or strength, regenerate ATP, or increase the uptake of glucose by muscle cells.

Some Athletes Use Caffeine to Enhance Their Athletic Performance Because