Oregon Scientific Smart Trainer/Trainer Pro HR308 User Manual page 4

There are generally three training zones. They are health benefited and
related to your MHR as follows:
50%
Moderate Activity
60%
Weight Management
70%
Aerobic Zone
80%
Anaerobic Threshold Zone
90%
Red Line Zone ( maximum capacity )
100%
The upper and lower heart rate limits are calculated by multiplying
your MHR by the percentages of the selected training zone.
For example:
For a 40-year-old man to train for health maintenance,
His Upper Heart Rate Limit
His Lower Heart Rate Limit
For a 30-year-old woman to train for aerobic exercise,
Her Upper Heart Rate Limit
Her Lower Heart Rate Limit
The SMART TRAINING PROGRAM will guide you through the warm
up exercise to the end of the training exercise. Throughout the whole
training process you may check the calories consumed and % of fat
burn (from which it could show the percentage of calories came from
burning fat).
(220 - 40) x 70% = 126
(beats per minute)
(220 - 40) x 60% = 108
(beats per minute)
(230 - 30) x 80% = 160
(beats per minute)
(230 - 30) x 70% = 140
(beats per minute)
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