Final answer:
It is false that 30 minutes of daily physical activity is sufficient to maintain weight loss for most people. The guidelines recommend at least 150 to 300 minutes per week of moderate-intensity aerobic activity for substantial health benefits and weight maintenance, with additional activity providing further advantages. The correct option is b.
Step-by-step explanation:
The question asks whether 30 minutes of daily physical activity is sufficient to maintain weight loss for most people. False.
Based on the 2018 Physical Activity Guidelines for Americans, adults should aim for at least 150 to 300 minutes of moderate-intensity aerobic activity per week or 75 to 150 minutes of vigorous-intensity aerobic physical activity.
This translates to approximately 20-40 minutes per day of moderate-intensity activity. Additionally, muscle-strengthening activities are recommended at least twice a week.
For significant weight loss maintenance, engaging in physical activity beyond 300 minutes per week may be more effective.
The guidelines also suggest that increased physical activity contributes to several health benefits beyond weight maintenance, including reduced risk for chronic diseases and improved cardiovascular and muscular fitness. Option b. is the correct one.