
Finally the third hill increases intensity until the user reaches 80% of their max heart rate, 80% is then held for 1 minute followed by the final 65% valley. At the end of the duration of hills and valleys, the workout enters a cool down phase. Note that if the user does not reach a heart rate goal after five minutes, the message center displays a prompt to increase or decrease speed (for treadmills) or resistance (for bikes and cross trainers), depending on whether the workout is in a hill or