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3.If you have activated an optional sensor for the sport profile, the training computer will automatically search for the signal.
4.The check mark indicates that the signal is found. If the training computer does not find the signal, the display shows a triangle with an exclamation mark.
Do not use the backlight during sensor search. The sensor search does not operate when the backlight is on.
5.Once the training computer has found all the signals, press OK. Recording started is displayed and you can start training. During training recording you can change the training view by browsing with UP/DOWN. To change settings without stopping the training recording, press and hold LIGHT to enter QUICK MENU. For more information, see Quick menu (page 31).
*Optional sensors include Polar s3+ stride sensor, Polar G5 GPS sensor / Polar G3 GPS sensor W.I.N.D., Polar CS speed sensor W.I.N.D. or Polar CS cadence sensor W.I.N.D.
Train with Polar ZoneOptimizer
Polar ZoneOptimizer is a smart training feature that provides personal, optimized sport zones for your every aerobic training session. It reads your heart rate variability at the start of each training session to determine how much your body is ready to train. It then adjusts heart rate limits accordingly so that you get the maximum benefit from your training, whatever the day.
ZoneOptimizer function is developed for the use of healthy people. Some health conditions may cause ZoneOptimizer to give lower intensity targets, or revert to default heart rate zones. These conditions include high blood pressure, and cardiac arrhythmia. Certain medications may also influence the determination.
How does Polar ZoneOptimizer work?
You know how sometimes you can train hard and you feel you can keep on at it for a long time. Then there are days when the same intensity absolutely exhausts you. This is because your body’s physiological state can vary from day to day. When your body is not recovered, you cannot train as intensively as on another day when your body is more rested.
Your body’s physiological state is reflected in your heart rate variability. And since ZoneOptimizer is based on heart rate variability, it can tell what your body is ready for just by listening to your heart. At the start of an exercise, once the ZoneOptimizer determination is done, you get a recommendation of heart rate limits for each sport zone. For more information on sport zones, see Polar Sport Zones (page 38).
ZoneOptimizer adjusts the limits for your heart rate zones to reflect your body’s state. When your heart rate variation is high it means your body’s physiological state is good and you can work at higher intensity. ZoneOptimizer knows this and suggests that you exercise with higher heart rate limits. When your body is not recovered, your heart rate variation is low and the heart rate zone limits are lowered. So, one day ZoneOptimizer would say that light training for you is done between
ZoneOptimizer also gives you feedback on your daily physiological status (good/normal/low). It knows it by comparing the amount of heart rate variability you have now with earlier measurements. Without
Training 13
