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workload. In this case the age-predicted limits are the
best estimation for the exercising zone.
...THE OWNZONE LIMITS BASED ON HEART RATE
VARIABILITY (OZ.V) VARY CONSIDERABLY?
Heart rate variability reacts sensitively to all changes
taking place in the body and environment. The OZ.V
heart rate limits are affected by, amongst others, your
daily state of fitness, the time of OwnZone
determination, the type of exercise and state of mind.
The lower limit of the OZ.V heart rate limits can change
for the same person by as much as 30 beats.
However it is important that the feeling of exercise carried
out in the OwnZone is light or moderate. For example if
you raise your heart rate too rapidly after the first stage,
you may get too high OwnZone heart rate limits. If the
OwnZone limits seem to be too high we recommend that
the OwnZone determination is done again.
... SOME OTHER PERSON USES MY POLAR M21 OR
POLAR M22 HEART RATE MONITOR?
Polar Heart Rate Monitor determines the OwnZone heart
rate limits on the basis of heart rate and age. If someone
else uses your Polar M21 or Polar M22 it is necessary to
zero the OZ.L heart rate limits which are in the memory.
Reset the age in the USER mode.
Even though the user is the same age as you the age
must still be reset in order that the OZ.L heart rate limits
are zeroed. If this is not done the Polar M21 or Polar
M22 may give the following user OwnZone heart rate
limits based on your heart rate variability which is stored
in the memory of the equipment.
Note that changing the user also affects the calculation of
the total calorie expenditure (Tot. KCAL) and cumulative
exercise time (Tot. TIME). If these readings are not zeroed
when the user changes, the Polar M21 or Polar M22 adds
new exercise periods into its memory, even though the
user information is changed. Cumulative exercise
information can not be returned after resetting.
50
M52 man GBR/D
50-51
In models M51 and M52 you can set two users'
preferences in the memory. Select the correct user in the
beginning of an exercise.
... THERE IS NO HEART RATE READING (- -)?
1. Check that the electrodes of the transmitter are
moistened and that you are wearing it as instructed.
2. Check that you have kept the transmitter clean.
Care and maintenance.
3. Check that there are no sources of electromagnetic
radiation in the close vicinity of the Polar wrist
receiver, such as TV sets, mobile phones, CRT monitors
etc.
Precautions.
4. Have you had a cardiac event which may have altered
your EKG waveform? In this case consult your
physician.
...HEART SYMBOL FLASHES IRREGULARLY?
1. Check that your Polar wrist receiver is inside the
transmission range and not further that 1 metre/
3 feet from the Polar Transmitter you are wearing.
2. Check that the elastic strap has not become loose
during exercise.
3. Make sure that the electrodes of the transmitter are
moistened.
4. Make sure that there is no other heart rate
transmitter within the reception range (1 metre/
3 feet).
Precautions/Crosstalk.
5. Cardiac arrhythmia may cause irregular readings. In
this case consult your physician.
...OTHER PERSON WITH HEART RATE MONITOR IS
CAUSING INTERFERENCE?
Your training partner may have coincidentally activated
exactly the same code as you. In this case keep distance
to your training partner or proceed as follows:
1. Stop the stopwatch and heart rate measurement.
2. Take the transmitter off your chest for 10 seconds.
3. Put the transmitter back and start the heart rate
measurement again.
5/1/01, 9:11
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