Which of the following is listed as an aerobic activity?

• A. Sprinting
• B. Chess
• C. Walking
• D. Weightlifting

Answer: (C)

Aerobic activity is steady, rhythmic movement that uses large muscle groups and can be sustained for an extended period, with the body relying on oxygen to produce energy. This type of exercise raises the heart rate and makes you breathe harder, but it stays at a level you can maintain for minutes to hours, improving cardiovascular endurance over time.

Walking fits this idea well. When you walk at a moderate or brisk pace, your body uses oxygen to convert fuel into energy, and you can keep going for a long time. It engages the legs and hips, is usually performed continuously, and helps improve heart and lung health.

Sprinting, on the other hand, relies on energy sources that don’t require oxygen and is performed in short bursts, so it’s primarily anaerobic. Chess is a mental activity with little physical exertion, and weightlifting involves short, intense efforts that rely on anaerobic energy systems. Because of these distinctions, walking is the aerobic activity.