Otto Bock C-Leg 3C98-3 Instructions For Use Manual page 23

8.1.3 Sitting down
8.1.4 Sitting
INFORMATION
While sitting, the knee joint also switches to energy saving mode. This energy saving mode is
activated regardless of whether the sitting function is activated or not.
8.1.4.1 Sitting function
INFORMATION
To use this function, it needs to be enabled in the adjustment software. It also has to be activ­
ated using the Cockpit app (see page 26).
In the sitting position, the resistance in the flexion direction is reduced in addition to the reduction
of resistance in the extension direction. This makes it possible to swing the prosthetic leg freely.
8.1.5 Standing up
Flexion resistance is increased steadily while standing up.
The resistance in the prosthetic knee joint while sitting down ensures even
bending into the sitting position.
The O&P professional can use the adjustment software to configure whether
the sitting process is to be supported or not.
1) Place both feet side by side at the same level.
2) While sitting down, weight should be distributed evenly between both legs
and the arm supports used where applicable.
3) Move the buttocks in the direction of the back support and lean the upper
body forward.
INFORMATION: Resistance while sitting down can be changed with the
Cockpit app via the parameter "Resistance" (see page 26).
If the patient is in a sitting position for more than two seconds (i.e. the thigh is
close to horizontal and there is no load on the leg), the knee joint switches the
resistance to a minimum in the extension direction.
A sitting function can be enabled using the adjustment software. For more
information about the sitting function, see the following section.
1) Place the feet at the same level.
2) Lean the upper body forward.
3) Put the hands on armrests, if available.
4) Stand up with support from the hands while keeping weight evenly distrib­
uted on feet.
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