The Physical Activity Guidelines for Americans Provide Guidelines Specifically for Older

question 15

Multiple Choice

The Physical Activity Guidelines for Americans provide guidelines specifically for older adults. Which of the following is not one of these guidelines?

• A) All adults should engage in moderate-intensity aerobic physical activity for at least 150 minutes per week, vigorous-intensity aerobic activity for 75 minutes per week, or an equivalent combination of the two.
• B) To maintain lean tissue and basal metabolic rate, strength training should be performed 5 to 7 times per week.
• C) For those over age 65 who are at risk for falling, exercises that improve balance are recommended.
• D) Stretching each major muscle group should accompany aerobic or strength training at least 2 days per week.

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Definitions:

Marginal Benefit

The increase in utility or enjoyment an individual gets by consuming an additional unit of a good or service.

Marginal Cost

The extra expense associated with creating an additional unit of a product or service.

Streetlights

Outdoor lighting fixtures installed along streets to provide illumination during the night to enhance visibility and safety.

Marginal Social Benefit

The additional benefit to society from consuming or producing one more unit of a good or service.