Question

exhaustion of glycogen storage within a muscle fiber would have the biggest effect
a) fast oxidative fibers
b) fast glycolytic fibers
c) both slow and fast oxidative fibers
d) slow oxidative fibers

Explanation:

Fast glycolytic fibers rely mainly on anaerobic glycolysis for energy production. Glycogen is a key fuel source for glycolysis. Exhaustion of glycogen storage would severely impact their energy supply. Slow oxidative and fast oxidative fibers can also use other fuel sources like fatty acids and glucose from the bloodstream more effectively than fast glycolytic fibers.

Answer:

B. fast glycolytic fibers