RSscan footscan, User Manual

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quadrants, marked by the horizontal and vertical magenta lines (frame division cross).
During preview, the pressure image with its center of pressure is shown. During
recording, the pressure image together with the center of pressure line and ellipse are
shown. The ellipse is based on the principal component analysis (PCA) of 70 percent of
the center of pressure values, the center of the ellipse is the average of those center of
pressure values. The principal and secondary axis of the ellipse are one standard
deviation of the center of pressure values in the principal component analysis (PCA),
these axes are also visible in the canvas during recording.
The orientation of the plate can be adjusted while previewing by using the and
buttons.
It is possible to show a set of reference lines during the preview. These reference lines
can guide the user to place their feet in the correct position, the heels should be
positioned at the intersection of the vertical lines with the slanted reference lines. The
reference lines are shown by clicking the Show reference position lines checkbox,
when enabled the following parameters can be adjusted:
Feet angle: the enclosed angle between both feet. It can be adjusted in the Feet
angle spinbox and is given in degrees.
Heel distance: the distance between the heels of both feet. It can be adjusted in the
Heel distance spinbox and is given in centimeter.
The Start Recording button becomes active when pressure is detected on the
pressure plate, click this button to start a balance recording. It is possible to start the
actual measurement after a given delay. This delay can be set using the Start delay
spinbox. When using the delayed start, a countdown will be visible in the preview
window. The actual recording starts after this countdown is finished. The balance
recording will stop automatically when the maximum duration has elapsed or when the
Stop Recording button is pressed. The maximum duration can be set with the
Maximum duration spinbox. During the balance recording the elapsed recording time is
displayed.
Click Next to save the balance measurement. Click Skip to discard it.
Dynamic recording
The dynamic measurement captures the pressure distribution
under the client's feet over the full duration of a step from initial contact until the end of
the foot roll-off. footscan 9 recognizes left and right feet automatically. The client
should walk or run in their natural gait pattern. A few practice runs might be useful
before taking the final measurement.
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