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The longer the crank length
(page 42) or the lower the motor
power (page 55), the more sensi-
tively the spasm detection responds.
The shorter the crank length/the
greater the motor power, the less
sensitively the spasm detection re-
sponds.
Spasm program
The function spasm program is used to set
the direction in which the THERA-vital rotates
after detecting a spasm.
❑
Select from the following options:
Forwards if the patient tends to suffer ex-
tension spasms,
Backwards if the patient tends to suffer
flexion spasms.
Opposite to have the exerciser rotate in
the opposite direction to the direction it was
rotating when the spasm was detected
Automatic speed adaption
If Automatic speed adaption is set to "On" the
active-assisted exercising (motor) speed
automatically adjusts to greater effort by the
patient when exercising actively.
Example: if the patient is exercising actively at
30 rpm when the motor speed (active-as-
sisted exercising speed) is set to 15 rpm, after
about 10 seconds, the THERA-vital adjusts
the active-assisted exercising speed to 25
rpm.
If the patient subsequently changes back to
active-assisted exercising, the THERA-vital
operates at a speed of 25 rpm. Thus the pa-
tient individually controls the speed and ob-
tains a active-assisted exercising speed at
which he/she is comfortable.
Pulse limit
The THERA-vital reduces the resistance level
as soon as the preset heart rate limit is
reached. This is to ensure that the patient al-
ways exercises at a heart rate below the limit
prescribed by the doctor.
☞
Since all Ortho and Cardio exercising
programmes a high level of active effort
is expected from the patient, a long
crank length is advisable (see page 42).
Muscle support
This function assists patients with only minimal
residual strength or minimal strength on one
side. The residual strength is supplemented by
this function so that an even pedalling action is
always obtained. The function operates accord-
ing to the principle of "as much assistance as
necessary but as little assistance as possible".
The intention is to strengthen the patient's own
efforts at all times.
In the case of leg-amputee patients, the muscle
support function performs the work of the inac-
tive side. In such cases, the muscle support
function operates like an "electronic flywheel".
56
Microphone sensitivity
The THERA-vital can be stopped by a long,
loud shout (safety voice deactivation). This
function is particularly useful for patients who
use the upper torso trainer with their arms
strapped to the fore arm rests and cannot,
therefore, use the control pad.
The menu option Technical/Microphone sen-
sitivity provides the facility for adjusting the
sensitivity of the microphone fitted in the con-
trol pad or switching it off altogether (indicated
as
on the status bar at the bottom of the
screen; the status bar only appears when the
exerciser is in "Stop mode"; it is hidden while
an exercising session is in progress.
❑
Set the sensitivity as follows:
0 (Off)
if the ambient noise is so loud that
it causes the exerciser to switch
off
1 to 3
if the ambient noise is very loud
4 to 6
if the ambient noise is of a normal
level
7 to 10
if the ambient noise is very quiet
❑
Check that the setting is correct by carrying
out a practical test.
Afterwards press the START button to con-
tinue the exercising session.
Contrast
The contrast of the colour screen is set at the
factory. If necessary, it can be adjusted by se-
lecting the menu option Technical/Contrast.
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