Question

Muscular endurance is fueled by anaerobic energy.
a. True
b. False

Answer 1

Muscular endurance relies on aerobic metabolism, not anaerobic. Anaerobic energy is used for short, high-intensity exercises and results in quicker muscle fatigue compared to the sustained energy provided by aerobic metabolism important for activities like marathon running.

Step-by-step explanation:

The statement "Muscular endurance is fueled by anaerobic energy" is false. Muscular endurance is the ability of a muscle to continue exerting force without tiring. This kind of performance relies on aerobic metabolism, which uses oxygen to convert nutrients from food into energy. Anaerobic energy, on the other hand, is utilized during high-intensity, short-duration exercises such as sprinting or weight lifting, where the energy demand exceeds the oxygen supply, and thus, energy is produced without oxygen.

As for the sprinter and marathon runner comparison, a sprinter would experience muscle fatigue sooner than a marathon runner due to anaerobic metabolism in the muscles of the sprinter, which produces energy quickly but also leads to faster muscle fatigue. Marathon runners rely more on aerobic metabolism, which provides sustained energy over a longer period.

Answer 2

Muscular endurance is NOT fueled by anaerobic energy.

The correct answer to your question is for that reason B - False.

There is a reason why running (Which is considered an endurance activity) is also at the same time considered to be an aerobic exercise, while heavy weight-lifting is considered to be a anaerobic exercise.