A thirty-two-year-old accountant spends much of the day working at the computer. The
accountant's body fat percentage is approaching the healthy level for their age. They take a twenty-minute walk, three days a week, but are not training in their target heart-rate zone.
Identify two changes the accountant needs to make that would increase intensity and
improve the current fitness level for cardiorespiratory endurance.
Explain how those changes impact cardiorespiratory health.