Spirit XBU55ENT Upright Bike

OWNER’S MANUAL - Page 37

For XBU55ENT.

PDF File Manual, 52 pages, Read Online | Download pdf file

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35
HIIT, OR HIGH INTENSITY INTERVAL Training, 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.
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