What are the primary physical activity targets for most children and adolescents with obesity?

• A. At least 60 minutes of moderate-to-vigorous activity most days, plus strength training and reduced sedentary time.
• B. 15 minutes of activity per day
• C. Only weekend activity
• D. High-intensity interval training every day without rest

Answer: (B)

Daily activity for most children and adolescents should target at least 60 minutes of moderate-to-vigorous physical activity on most days. This duration supports cardiovascular fitness, helps with energy balance, and improves overall health, which is especially important for youths managing obesity. In addition to aerobic activity, including muscle- and bone-strengthening activities several days a week helps preserve lean mass and supports growth and bone health. Reducing sedentary time and breaking up long sitting periods with light activity further enhances benefits and makes activity a sustainable habit.

Fifteen minutes a day is far below what's needed to influence weight management and metabolic health, so it wouldn’t provide adequate stimulus. Focusing activity only on weekends disrupts consistent energy expenditure and habit formation. High-intensity interval training every day without rest is not typically appropriate for most youth and doesn’t align with guidelines that emphasize a mix of activities, safety, and adequate recovery.