Spirit CT900ENT Owner's Manual page 36

CARDIO
Speed: This program presents a quick progression up to near maximum
speed level (default or user input level). It has slight fluctuations up and
down to allow heart rate to elevate, and then recover repeatedly,
before beginning a quick cool down. This will build up your heart
muscle and increase blood flow and lung capacity.
Incline: The elevation in this program is moderate. There are several
elevation spikes at different points of the workout. Segments 4, 9,
and 14 are maximum elevation for this program.
STRENGTH
Speed: This program has a gradual progression of speed up to
100% of maximum effort that is sustained from 25% of workout
duration. This will help build strength and muscular endurance in
the lower body and gluten. A brief cool down follows.
Incline: There is a quick climb to a moderate, sustained elevation
that lats the majority of the workout length.
5K RUN
Both speed and incline are controlled by the user. Increase or
decrease levels at any time during your workout. The track display
will set the distance of 1 lap to 5 kilometers (metric) or 3.1 miles
(standard measurement).
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Spirit Fitness