Spirit XT285 Owner's Manual page 18

Strength
Resistance: This program has a gradual progression of speed up to 100% of maximum effort that is sustained
for 25% of workout duration. This will help build strength and muscular endurance in the lower body and glutes.
A brief cool down follows.
Incline: There is a quick climb to a moderate, sustained elevation that lasts the majority of the workout length.
INCLINE SPEED
Interval
Resistance: This program takes you through high levels of intensity followed by recovery periods of low
intensity. This program utilizes and develops your "Fast Twitch" muscle fibers which are used when performing
tasks that are intense and short in duration. These deplete your oxygen level and spike your heart rate,
followed by periods of recovery and heart rate drop to replenish oxygen. Your cardiovascular system gets
programmed to use oxygen more efficiently.
INCLINE SPEED
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