3Interval Training is a series of increasingly steeper hills, alternating with valleys, or stints of recovery. The heart rate should rise to the high end of the target* zone. Check the heart rate at the end of this phase.
4
Each column, as seen in the WORKOUT PROFILE window and the chart above, represents one interval. The overall duration of the workout determines the length of each interval. Each workout is made up of 20 intervals, so the duration of each interval is equal to the duration of the entire workout divided by 20.
1 to 9 minutes (available only if Power Assist option is enabled. See the topic titled Using the Power Assist Option in Section 1.2.): A workout with a duration of less than 10 minutes is insufficient for the Hill program to complete all four phases adequately. The program, therefore, condenses a workout of this duration at various stages.
10 to 19 minutes: The interval durations initially are set at 30 seconds for a
A
20 to 99 minutes: All intervals last 60 seconds. If the user adds minutes to the
RANDOM
The RANDOM program creates a terrain of hills and valleys that varies with each workout. More than one million different patterns are possible.
MANUAL
The MANUAL program sets an intensity level that does not change automatically. While the work- out is in progress, increase or lower the intensity level as desired, using the arrow keys.
25