Which of the following best describes anaerobic exercise?

Anaerobic exercise is characterized by high-intensity activities that are performed for short durations. This type of exercise typically involves bursts of energy where the body relies on energy stored in the muscles rather than oxygen taken in through the lungs. Activities such as sprinting, powerlifting, or high-intensity interval training (HIIT) are prime examples of anaerobic exercise, as they require significant energy output in a short amount of time without the need for oxygen.

In contrast, other options describe activities that fall outside the anaerobic definition. Low-intensity activities lasting long durations would refer to aerobic exercise, which primarily uses oxygen to sustain performance. Options that mention reliance solely on oxygen and long-distance running at a steady pace also align with aerobic activities, where endurance and oxygen intake play crucial roles.