Counts and displays calorie expenditure during exercise.

OwnIndex is a score which is comparable to Vo2max.OwnIndex is a result of the Polar Fitness Test. The Polar Fitness Test is a revolutionary way to test aerobic fitness. The Polar Fitness Test is most meaningful when following changes in your fitness over a long period of time. Find out how fit you are for your age and gender by comparing your result to the global references listed in the Polar user's manuals.

Target zone which Polar Heart Rate Monitor determines for you. OwnZone is an individual guide for light to moderate exercise intensity.

OZ ----: Indicates OwnZone determination procedure.
OZ.A: Indicates OwnZone limits are determined according to your age.
OZ.L: Your latest OwnZone limits.
OZ.V: Indicates currently measured OwnZone limits which are based on your heart rate variability.

Allowing the body to exercise and rest simultaneously. By staying in very low heart rate zones for short recovery workouts, you recuperate from a climb.

This is the point where your body crosses over from Aerobic (70-80% of Max Heart Rate) to Anaerobic exercise (80-80% of Max. Heart Rate). During anaerobic workouts, your body's muscles, including the heart, have gone beyond the aerobic state where they consume lots of oxygen, to a threshold where the body cannot supply enough oxygen. This is where athletes say: "feel the burn".

You can only stay in this zone for a limited amount of time because your body will protect itself from overworking and slow you down if you keep it up too long. Within this zone, however, the competitive athlete gains tremendous performance benefits.

To reach your highest level of fitness; preparing yourself for your own peak performance.