What are anaerobic exercises?

• A. Long-distance endurance activities
• B. Use of light resistance for many repetitions
• C. Intense, short bursts of energy
• D. Rhythmic activities for an extended period

Answer: (C)

Anaerobic exercise is high-intensity activity performed in short bursts, when the body can’t deliver oxygen to the muscles quickly enough to meet the demand. Because the effort is so intense, energy comes from quick, non-oxygen–dependent systems and can’t be sustained for long. This directly matches doing intense, short bursts of energy, like sprints or heavy lifting.

Long-duration endurance activities rely on oxygen and are considered aerobic, since they’re sustained over time. Using light resistance for many repetitions trains muscular endurance and also leans on aerobic energy for longer efforts. Rhythmic activities continued for an extended period likewise rely on steady, oxygen-using energy.