Question

select the correct answer.
susie is 25 years old and currently exercises for 1 hour and 30 minutes a week, using a moderate - intensity aerobic exercise. she does not participate in any muscle - strengthening exercises. what changes should she make to her exercise routine to meet the physical activity guidelines?
a. decrease her current routine by 30 minutes and increase high - intensity exercise to a total of 30 minutes a week.
b. increase total aerobic exercise to 2 hours and 30 minutes a week and include muscle - strengthening exercise on two or more days a week.
c. maintain her current aerobic exercise routine, but add in two or more days of muscle - strengthening exercises a week.
d. susie should only do vigorous intensity exercises for 45 minutes a week and muscle - strengthening exercises on two or more days a week.

Explanation:

According to general physical - activity guidelines for adults, 150 minutes (2 hours and 30 minutes) of moderate - intensity aerobic activity or 75 minutes of vigorous - intensity aerobic activity per week is recommended, along with muscle - strengthening activities on two or more days a week. Susie currently exercises for 90 minutes of moderate - intensity aerobic activity per week and no muscle - strengthening exercises. She needs to increase her aerobic exercise and add muscle - strengthening exercises.

Answer:

B. Increase total aerobic exercise to 2 hours and 30 minutes a week and include muscle - strengthening exercise on two or more days a week.