Monark 839 E, Manual

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Monark Ergomedic 839 E
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6.1 Heart rate (Telemetry system)
The subject’s heart rate can be monitored by chest
belt telemetry system. The system with chest belt
electrodes is standard equipment.
The chest belt should be secured at a comfortable
tension around the mid section, just below the
breasts. Moisten the electrodes before use. Heart
rate monitoring, free from artifact, requires good
electrode contacts and adequate skin preparation.
Prior to placing the electrodes, the subjects skin,
at the electrodes sites, should be cleaned with one
of the commercial skin prep solution. To make
sure that you have found the correct position
the logo should have been placed in the center of
chest and also be readable for another person. To
enable a reliable contact with pulse receiver on
the bike the distance should be kept below 100
cm. It is important to identify the chest belt with
the pulse receiver by standing close to it before
beginning (max 60 cm, concerns Polar belts).
After the chest belt is placed the heart rate will be
displayed and the heart will verify each beat. If
the RPM bar is set to show optical heart beat in
the middle section this will also verify each heart
beat.
NOTE! Electromagnetic waves can interfere the
telemetry system. Cellular phones are not allo-
wed to be used near the bike during test.
If the ergometer is to be used without chestbelt
note that max heart alarm should be set in off
position so that external noise not can cause a
random max pulse or higher. This switch is in on
position by default. If the heart rate exceeds the
maximum level set, the alarm will sound and the
ergometer braking force will decrease until the
heart rate drops below the alarm level.
6.2 Subject supervision
The ergometer performs automated tests virtual-
ly by itself, requiring minimal intervention by the
operator. This allows the operator to pay careful
Testing with Ergomedic 839 E
Finally, the chest belt should be applied and mo-
nitored to check for proper heart rate operation.
The baseline heart rate may also be of assistance
in determining the nervousness of the subject.
The subject should exhibit a relatively stable res-
ting heart rate prior to starting the protocol.
6 Testing with
Ergomedic 839 E
The versatility of the 839 Electronic Ergometer
enable it to be utilized in a variety of testing en-
vironments. The precision and reproducibility
of measurements made with the ergometer in
conjunction with the ease of testing, allow it to
be employed in clinical exercise stress facilities,
corporate fitness programs and health clubs. The
backgrounds of both the individuals being tested
and those administering the test may be vastly dif-
ferent in these widely varying testing situations.
In general, whether in a clinical laboratory or a
health club, the subject may be exercised quite
strenuously, depending on workloads which have
been selected. As a precaution, it may be advi-
sable, prior to beginning an exercise protocol,
that each subject consult with a physician. Be-
fore testing, the operator should review the entire
protocol operation with the subject, explaining
the work which will be required and the duration
of the procedure. A system of communicating
fatigue, chest pain or other abnormal physical re-
sponse to the exercise should be discussed.
The subject should not engage in heavy physi-
cal activity for several hours prior to testing to
establish maximum oxygen consumption. In ad-
dition, all testing and exercise protocols should
be performed a reasonable time after meals. The
subject should also refrain from smoking within
an hour of the testing period.
The subject should not be prepared for riding the
ergometer, including the selection of proper clo-
thing which neither interferes with the physical
activity nor endangers the health of the subject.
The subject may need some general education
concerning the pedaling of the ergometer. The
saddle and the handlebars should be adjusted
for comfort and proper mechanical distance. The
saddle height should be set so that when the ball
of the subject’s foot is placed on the pedal, there
is a slight bend at the knee with the pedal in the
lowest position.
The operation of the speed metronome and over/
under display should be reviewed. The mainte-
nance of the proper speed should be practiced at
a low workload.