Sitting Function - Otto Bock Genium X3 Series Patient Information

INFORMATION
When the knee joint is fully charged (all 5 LEDs at the side light up (Fig� 3)), the maximum period
of use for the knee joint before the next charging process is up to 5 days, depending on patient
activity� However, we recommend charging the knee joint every night�
Functions in the Basic Mode
INFORMATION
Your prothetist can activate/deactivate settings using the X-Soft configuration software�

Sitting function

When a sitting position is maintained 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 both the
flexion and extension directions� The sitting function can be activated by the prosthetist by using the
X-Soft adjustment software�
INFORMATION
While sitting, the knee joint switches to an energy-saving mode� This energy-saving mode is acti-
vated regardless of whether the Sitting function has been enabled or not�
Intuitive Stance function
The Intuitive Stance function automatically recognises any situation that puts strain on the prosthesis
in the flexion direction but where flexion is not permitted� Examples where this is the case include
standing on uneven or sloping surfaces� The joint is always locked in the flexion direction when the
prosthetic leg is not fully extended, under some amount of load and at rest�
When the load is taken off the leg or upon forward or backward rollover, the level of resistance is
immediately reduced to stance phase resistance again� The knee joint is not locked when the above
conditions are met and a sitting position is assumed (for example while driving)� The Intuitive Stance
function can be activated by the prosthetist by using the X-Soft configuration software�
Stairs and Obstacles function
Negotiating stairs step-over-step:
Although the Genium X3 is a passive knee joint, which means it cannot actively initiate movements,
negotiating stairs step-over-step is possible�
In order to do so, the prosthetic foot has to be placed on the next higher step first with the knee
flexed� Then the hip is extended, which also extends the knee� This requires a sufficiently secure hold
in the socket and a certain level of residual limb strength� During physiological stair climbing, knee
flexion is accomplished by actively raising the lower part of the leg� With knee joint, knee flexion can
10 | Ottobock Genium X3 - Bionic Prosthetic System