Otto Bock C-Brace Instructions For Use Manual page 67

The parameter 'Maximum Toe Load' is essential for triggering the swing phase. As soon as the forefoot load with
the leg extended exceeds 70% of the value configured for this parameter, the knee joint is released. This permits
unimpeded flexion in the swing phase.
Adjustment:
The patient walks a few steps (between parallel bars). Observe the course of the toe load in the bar diagram at the
bottom right while the patient is walking. Adjust the 'Maximum Toe Load' slider control so that the maximum value
of the trailing pointer clearly exceeds the grey mark (70% of the parameter 'Maximum Toe Load') and reaches the
orange mark of the bar diagram. The numeric display of the slider control is for information only. The patient should
be able to reliably trigger the swing phase while walking on level ground.
INFORMATION
Also verify the adjustment while standing: the swing phase must not be triggered unintentionally while standing. If
this is the case, the setting for the parameter 'Maximum Toe Load' is too low.
SWP initial flex. damping
This damping value is active immediately after triggering swing phase flexion.
Adjustment:
This parameter is set to a minimum value at the factory. Readjustment is only required for highly active patients. In
most cases, readjustment is not required and should therefore not be done.
SWP Dynamic Factor
This value in relation to the walking speed determines how far the lower leg with the product swings through in the
dorsal direction. This damping begins with the configured value of the parameter 'SWP Knee Angle Threshold'.
This value can also be configured in conjunction with the adjustment 'SWP Knee Angle Threshold'. For a large
knee angle, the value 'SWP Dynamic Factor' must be higher than for a small knee angle. This also influences the
stride length since it determines the flexion time.
Adjustment:
Use the slider control 'SWP Dynamic Factor' to find a setting that is comfortable for the patient.
C-Brace
Adjustment with C-Soft
67