Question

select the correct answer. 23 - year - old rehan exercises for 1 hour a week. his routine includes moderate - intensity aerobic exercise and weightlifting three days a week. what changes should he make to meet the physical activity guidelines? a. rehan should increase his aerobic activities to 21 hours a week and do weightlifting all seven days of the week. b. rehan should continue with his aerobic exercise routine but he needs to lift weights four days a week. c. rehan should continue with his aerobic exercises but he should reduce his weightlifting to once a week. d. rehans current exercise routine meets the physical activity guidelines. e. rehan can continue with his current exercise routine, but he should add an hour of vigorous - intensity exercise.

Explanation:

According to general physical - activity guidelines, adults should aim for at least 150 minutes (2.5 hours) of moderate - intensity aerobic activity per week. Rehan only exercises for 1 hour a week. Option A is excessive (21 hours of aerobic activity is far too much). Option B doesn't address the lack of aerobic activity. Option C reduces weightlifting too much without increasing aerobic activity. Option D is incorrect as his current routine doesn't meet the guidelines. Option E still doesn't bring his total aerobic activity to the recommended level. But among these options, the most reasonable improvement would be to increase the amount of exercise.

Answer:

There is no completely correct answer among the options provided as none fully meet the general physical - activity guidelines. However, if we have to choose the best one, E is the most reasonable as it suggests adding more exercise while maintaining the current routine to some extent.