For cardiovascular exercise, the american college of sports medicine recommends all but which one of the following? a. should occur three to five days per week. b. should be 20 to 60 minutes in duration for each workout. c. intensity should be based on breath rate. d. should be within your training zone based on target heart rate.

Asap during the past few weeks or months, have you noticed any exercises that have become too easy for you? do you think you need to increase the intensity in any of the three exercise areas in your workouts? evaluate your exercise progress in the three exercise areas (cardiovascular, resistance, and flexibility) and list what modifications, if any, you may need to make in your exercise routine.