In children and adolescents, what intensity range is recommended for aerobic activity?

• A. Light to moderate
• B. Moderate to vigorous
• C. Vigorous only
• D. Low to moderate

Answer: (B)

The key idea is that aerobic activity for children and adolescents should be performed at a moderate to vigorous intensity. This level of effort increases heart rate and breathing enough to provide health benefits while still allowing most daily activities to be feasible. In practical terms, moderate intensity is when you can talk in short sentences but singing is difficult, and vigorous intensity is when talking becomes very hard. Most guidelines encourage about 60 minutes of aerobic activity most days, with the bulk at moderate intensity and some time incorporated at vigorous intensity. Light to moderate alone wouldn’t provide the necessary cardiovascular stimulus, and vigorous-only can be hard to sustain for about daily activity over time. So, the recommended range is moderate to vigorous.