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M 90
Lim Low: The lower heart rate limit
of the target zone.
Limits1, 2, 3: Heart rate limits for
Target Zones 1, 2 and 3.
MAX: Together with a heart rate
reading indicates the highest heart
rate.
MAX
%: Together with a heart rate
reading indicates what percentage
your current heart rate is of your
maximum heart rate.
Mem full: Appears on the display
when the memory is full. You can
continue your exercise and taking
lap times but they won’t be
recorded into the file.
OPTIONS: Indicates the Options
mode.
OwnCal: Calculates energy
expenditure during exercise in
kilocalories. 1 kilocalorie (kcal) =
1000 calories (cal). You can follow
how much energy you lose by
exercising in one exercise session or
in a day, week or even a year. The
OwnCal can be used as a dose
measure of exercise Ex. in nutrition
planning. OwnCal calorie calculation
starts when your heart rate reaches
90 bpm or is above 60% of your
maximum heart rate, whichever is
smaller. These limits are set to count
only exercise calories. The higher the
heart rate, the faster the energy
expenditure. OwnCal is individually
calibrated by your preset weight,
maximal oxygen uptake (VO
2max
) and
maximum heart rate (HR
max
). The
most accurate OwnCal is received by
entering your clinically measured (in
maximal treadmill or bicycle stress
test) VO
2max
and HR
max
into the wrist
receiver. Energy expenditure
measurement is most accurate in
continuous activities such as cycling
and running.
OwnINDEX: Result of Polar Fitness
Test and comparable score with
maximal oxygen uptake (VO
2max
) in
ml/kg/min.
RecoHr, heart-rate-based
recovery: You set the heart rate,
which will end your recovery
calculation. In the File mode you