There are essentially 5 commonly defined training zones associated with CV training, each defined as a pulse rate expressed as a percentage of your maximum. Which zone you conduct a specific exercise depends on many things, but once a basic level of fitness is achieved it is primarily driven by what you wish to get out of the exercise routine. The five common zones are:
| Zone Name | Heart Rate in Zone |
| Fat Burning Zone | 50 - 60 % of Max Heart rate |
| Healthy Heart Zone | 60 - 70% |
| Aerobic Zone | 70 - 80% |
| Anaerobic Zone | 80 - 90% |
| Red Line Zone | 90 -100% |
Key
Easy Workouts |
|
Relatively Hard Workouts |
|
Very Hard Workouts |
The subject of metabolism and cardiovascular training are related and you can find more information of the connection here, including a discussion of the resting metabolic rate RMR.