Arnold wants to make sure he is getting enough exercise. According to the 2018 Physical Activity Guidelines for Americans, which of Arnold’s weekly workout plans meets their minimum recommendation?

Question

He golfs for 2 hours every Sunday.


He bikes for 45 minutes a day, 3 days a week.


He runs for 15 minutes a day, 6 days a week.


He walks for 30 minutes a day, 5 days a week.

Answer 1

According to the 2018 Physical Activity Guidelines for Americans, adults should aim for at least 150 minutes of moderate-intensity aerobic activity or 75 minutes of vigorous-intensity aerobic activity each week, along with muscle-strengthening activities on two or more days a week.

Let’s analyze Arnold’s workout plans based on this guideline:

1. Golfing for 2 hours every Sunday:

   • 2 hours = 120 minutes of moderate-intensity.

2. Biking for 45 minutes a day, 3 days a week:

   • 45 minutes x 3 days = 135 minutes. If the biking is at a moderate intensity, this meets the guideline.

3. Running for 15 minutes a day, 6 days a week:

   • 15 minutes x 6 days = 90 minutes of vigorous-intensity. This meets the guideline.

4. Walking for 30 minutes a day, 5 days a week:

   • 30 minutes x 5 days = 150 minutes of moderate-intensity. This meets the guideline.

Conclusion: All of Arnold's workout plans (2 hours of golfing, 135 minutes of biking, 90 minutes of running, and 150 minutes of walking) meet or exceed the minimum recommended physical activity guidelines.