POLAR M21 - Manual (Page 17)

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Choose from the following two alternatives to
continue:
1. To continue settings, press SCROLL UP.
2. To return to the Time of Day display, press SCROLL UP
or
SCROLL DOWN until you come to the Time of Day
display or simply press and hold START/STOP/OK.
The OwnCal calorie calculation starts when your heart rate
reaches 100 bpm. The higher the heart rate, the faster the
energy expenditure accumulation. Energy expenditure
depends on body weight; the heavier the weight the
higher the energy expenditure. Men’s calorie expenditure is
more intense than women’s at the same heart rate.
The energy expenditure measurement with Polar Heart
Rate Monitor is most accurate in continuous activities such
as walking, cycling and jogging. Polar Heart Rate Monitor
shows the energy expenditure in kilocalories (kcal).
1 kilocalorie (kcal or Calorie) = 1000 calories (cal).
When you expend calories, your body actually uses fat and
carbohydrates as energy resources. The amount of fat from
the total calorie expenditure varies between 10% - 60%.
The rest (40% - 90%) is mostly carbohydrates.
The lower the heart rate, the bigger the fat percentage is
of the total energy expenditure. If you want to control
weight by exercising, it is recommended to aim at as big a
fat percentage of total energy expenditure as possible.
Exercise at the lower limit of your OwnZone.
In models M51 and M52, exercise with OwnZone Low.
M52 man USA GBR A 2001 10/12/01, 12:46 18