Treadmill User Manual

NAUTILUS
®
FITNESS GUIDELINES 
23
When you are first starting out, you should exclusively work in the Zone 1 and 
Zone 2 intensities. After a few weeks, you can occasionally incorporate Zone 3 
and Zone 4 intensities for short periods of time. Remember, when you begin to 
incorporate Zone 3 and Zone 4 intensities, you will find that you will likely have to 
drop down to Zone 1 intensities shortly thereafter as brief recovery periods.
For variety, you can spend a little bit of time in each of the four Zones during one 
workout, and then spend your time in just one Zone during the next workout.
Prenatal woman should always remain at Zone 1 and Zone 2 intensities, and 
anyone unaware of their current medical condition should also avoid Zone 3 and 
Zone 4 without prior clearance from their doctor.
These Zones can be translated into target heart rate numbers if your home 
fitness product has a grip or telemetric heart rate counter. Research has shown 
the best way to do this is not to establish heart rate numbers based upon age, 
but rather based upon how you feel.
The following chart will allow you to log your heart rate numbers based upon 
how you feel when working out. Simply log the heart rate numbers you find 
when you feel you are working at each of the specific intensities.
Zone
Description of Workout Intensity
Approximate 
Percentage 
of Maximum 
Heart Rate
Log Your 
Heart Rate
Your 
Heart Rate
1
• Easy 
• Warm-up 
• Cool-down
50% — 65%
Enter the heart rate 
you get when you are 
working in Zone 1 u
2
• Challenging, but comfortable 
• Steady endurance pace
65% — 75%
Enter the heart rate 
you get when you are 
working in Zone 2 u
3
• Challenging, and slightly uncomfortable 
• Race pace 
• Borderline out of breath
75% — 85%
Enter the heart rate 
you get when you are 
working in Zone 3 u
4
• Breathless 
• Not maximum, but winded 
• Can’t keep the pace for very long
85% — 90% 
Enter the heart rate 
you get when you are 
working in Zone 4 u
EXERCISE & FITNESS GUIDELINES










