Spirit CT900ENT Owner's Manual page 41
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Also See for CT900ENT:
- Owner's manual (55 pages) ,
- User manual (90 pages) ,
- Owner's manual (45 pages)
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GERKIN
The Gerkin protocol, also known as the fireman's protocol, is a sub-max VO2 (volume of oxygen) test. The
test will increase speed and elevation alternately until you reach 85% of your Max heart rate. The time it
takes for you to reach 85% determines the test score (VO2max) as shown in the chart below.
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