Which of the following is NOT a type of anaerobic exercise?

• A. Biking sprints
• B. Running sprints
• C. Pilates
• D. Weight training

Answer: (C)

Anaerobic exercise involves short, high-intensity efforts that rely on energy stored in the muscles rather than oxygen during the activity. Biking sprints and running sprints are classic examples of this, delivering maximal effort in brief bursts. Weight training, especially with heavy loads and short rest periods, also taps into anaerobic energy systems.

Pilates, by contrast, is a low-to-moderate intensity, technique-focused workout that emphasizes core control, alignment, and flexibility. Its energy demand is typically met through aerobic metabolism over the duration of the movements, not by brief, maximal bursts of effort. So Pilates is not an anaerobic exercise.