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HEART RATE INTERVALTM
This program also combines the standard HILL workout profile with the concept of Heart Rate Zone Training. The default
target heart rate* is calculated as 80 percent of the theoretical maximum† (HRmax), but the user can adjust the target
rate during the workout setup. The workout alternates between a hill, which brings the heart rate up to the target rate of 80
percent of HRmax, and a valley, which brings the heart rate down to 65 percent of HRmax. After a standard three-minute
warm-up, the workout progresses toward the first hill and heart rate goal. Once the goal is reached, the hill continues for three
minutes. Then, the level decreases into a valley. Once the 65 percent of HRmax goal is reached, the valley continues for three
minutes, after which the next hill begins. The user's fitness level determines the number of hills and valleys encountered within
the duration. At the end of the duration, the workout goes into a cool-down phase. If the heart rate goes above the theoretical
maximum† for more then 45 seconds, the treadmill automatically goes into pause mode. If the user does not reach a heart
rate goal after five minutes, the MESSAGE CENTER displays a prompt to increase or decrease speed, depending on whether
the workout is in a hill or valley phase. The program does not proceed to a new heart rate goal until the user reaches the cur-
rent goal.
Warm-up
65%HRmax
HEARTRATE INTERVAL Workout Profile
80%HRmax
Hill
Hill
Valley Valley Valley
Hill
65%HRmax
80%HRmax
65%HRmax
80%HRmax
117BPM 117BPM 117BPM
UserExample: 80 (40year old / 144 recommended BPM)percentof theoretical maximum (HR )max
144BPM144BPM144BPM
117BPM
†Defined by the American College of Sports Medicine's "Guidelines for Exercise Testing and Prescription" as equal to 220 minus an individual’s age.
* Target Heart Rate (THR) is a percentage of the theoretical maximum (HRmax). A40-year-old user's recommended THR for the HEART RATE INTERVAL
workout is 144, or 80 percent of the maximum; so the equation would be (220-40)*.80 = 144.