
After training, you can see how much of the session was spent in each zone. Each zone is a range of heart rates expressed as a percentage of your maximum heart rate (which is calculated based on the age you enter in the Personal settings menu). Accept the settings with a short press of the ENTER button, which also moves you on to the next menu item.
The default heart rates for zones 
| Heart rate | Default setting | Main benefit | 
| zone | 
 | 
 | 
| Zone 1 | 60 - 70% of maximum heart | Improves your basic endurance, and helps you to recover from harder | 
| (Fitness | rate | training sessions. Can also be used in weight control. | 
| zone) | 
 | 
 | 
| Zone 2 | 70 - 80% of maximum heart | Improves your aerobic capacity. This is the preferred zone if you are | 
| (Aerobic | rate | training for an endurance event. | 
| zone) | 
 | 
 | 
| Zone 3 | 80 - 90% of maximum heart | Improves your maximum aerobic capacity and lactate tolerance ability | 
| (Threshold | rate | (anaerobic threshold) - meaning your maximum endurance will | 
| Zone) | 
 | improve and you'll be able to fight fatigue better. | 
| NOTE | The heart rate zone defaults follow the guidelines of the American College | |
| 
 | of Sports Medicine for exercise prescription. | |
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