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footscan® entry level USB2 system

User guide:

Version 7

Balance software

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Information in this guide is subject to change without notice. No part of this document may be reproduced or transmitted in any way without the express written permission of RSscan International. © 2009 RSscan International

footscan® is a registered trademark. Windows is a registered trademark of Microsoft Corporation in the United States and other countries. LabVIEW is a registered and unregistered trademark of National Instruments (NI) in the United States and other countries.

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TABLE OF CONTENTS

INTRODUCTION..................................................................................................................................... 4

CONTACT INFORMATION .................................................................................................................... 5

CONVENTIONS USED IN THIS USER GUIDE ..................................................................................... 6

THE MAIN SCREEN............................................................................................................................... 7

PREFERENCES ..................................................................................................................................... 8

CALIBRATION ..................................................................................................................................... 11

DATABASE .......................................................................................................................................... 12

STABILITY............................................................................................................................................ 17

COMPARE STABILITY MEASUREMENTS ........................................................................................ 22

TRAINING............................................................................................................................................. 23

PRINTOUTS ......................................................................................................................................... 28

EXPORTS ............................................................................................................................................. 30

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INTRODUCTION The footscan® balance system is developed to perform state-of-the-art pressure measurements, for basic, clinical or scientific use. User friendly software creates the opportunity to have accurate and reliable pressure and timing data in no time.

Besides the pressures during unroll of the foot, the footscan® balance system provides information on the displacement of the center of force.

This user guide provides a reference to all features of the footscan® balance software.

Please refer to the footscan® entry level USB2 system Installation guide Balance software for the installation and initial start-up.

This software is compatible with the legacy footscan® USB1 system.

Enjoy your footscan® balance system.

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CONTACT INFORMATION Pre-sales and sales information For pre-sales and sales information, contact your regional distributor. If you cannot locate a regional distributor, contact RSscan International directly at sales@rsscan.com. Support information RSscan International offers following support options:

• The included documentation. • The RSscan International website http://www.rsscan.com/ (Frequently Asked

Questions, Knowledge Base, footscan® school instruction video’s and software updates).

• Contact your regional distributor. • If you cannot locate a regional distributor, contact the RSscan International support

department at support@rsscan.com. Please include the product serial numbers, system configuration, screen captures and detailed failure description.

• If you have exhausted the above support options, support by telephone is available from Monday to Friday from 9:00 to 16:00 GMT+1:00.

• In case your product requires repair, contact your regional distributor or the RSscan International support department at support@rsscan.com to initiate the RMA (Return Material Authorization) process.

Worldwide headquarters RSscan International NV Lammerdries-oost 23B B-2250 Olen Belgium Tel. +32 (0) 14 23 20 31 Fax. +32 (0) 14 23 53 90

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CONVENTIONS USED IN THIS USER GUIDE The following typestyle conventions are used throughout this user guide:

• Boldface emphasis and button names • Italic selections, screen titles and references to other sections of this user guide

• Underline references to the other guides of your footscan® system

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THE MAIN SCREEN

The main screen provides access to these functions:

1 Update button. Click to check the

footscan® website for updated versions of the balance software.

2 Patient details. General information on the selected patient.

3 Exit button. Click to exit the

footscan® application.

4 Preferences button. Click to set-up the system preferences.

5 Database button. Click to access the database screen, the measurement functions are also located on the database screen.

6 Calibration button. Click to access the weight calibration procedure.

7 Help button. Click to access the online help.

Shortcut keys are available throughout the footscan® software, for example while on the Main screen, shortcut key F10 will take you to the Preferences screen. When the mouse pointer is moved over a button, the tooltip will show the available shortcut key. The full list with available shortcut keys can be found on the Quick reference card included in the package.

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PREFERENCES

After the installation of the software, verify all preferences and modify where required. Click the Preferences button on the Main screen to access the Preferences screen. When all changes are made, click OK to confirm or Cancel to ignore the changes. Click Restore factory settings to revert all preferences to factory defaults. Caution: incorrect settings can result in incorrect measurements.

1 General

Show Tooltips: check this box to enable additional information to be shown when you move the mouse pointer over a button, for example the exit button. Language: select the preferred language from the dropdown menu.

2 Logos

Software logo: data entered in this field will be printed as line 1 of the personalized footer on printouts. Printout logo: data entered in this field will be printed as line 2 of the personalized footer on printouts.

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3 System

Threshold level: when the Measure button in the

Stability screen is clicked, the footscan® plate will start scanning but no data is recorded. The data recording will start when the overall pressure reaches the preset threshold level. The range is 0-255 AD, where 255 is the maximum level of one discreet sensor contact and AD is the unit (digital representation of the measured signal). If the threshold level is set to 0, the data recording starts immediately on initial contact. Serial number: the serial number of the connected

footscan® entry level USB2 plate will be displayed. This serial number is essential when you contact RSscan International for support.

Database location: by default, the footscan® measurements database will be stored in the database

folder within the settings folder of the footscan® entry level balance software. The database folder

can be relocated to another hard drive location or a network drive to access footscan® measurements from other computers in the network. When the database folder is relocated, enter the new path or click Browse to select the location of the folder.

When the software is updated, verify the database location and relocate if necessary. It is advised to backup the database periodically and prior to each software update.

4 Operation

Recording speed – recording time: the maximum

recording speed for a footscan® entry level USB2 system is 300 Hertz or frames/second. Maximum 1000 frames can be recorded. Select the recording speed and corresponding recording time from the dropdown list.

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5 Stability

A balance measurement can be divided into maximum six sections or intervals for easier analysis. Number of intervals: enter the number of intervals (1-6). Click Reset to reset to six identical intervals. The intervals can be set in two ways:

• Click and drag the green dotted lines.

• Select the interval (1-6) from the dropdown list and use the left and right arrow buttons to change.

Delay before measurement: enter the time delay before the start of the measurement (milliseconds).

6 Software Synchronization Tool

The Software Synchronization Tool (SST) enables synchronized display of measurement data from two

platforms, for example footscan®

pressure measurement data and third party video capture data. Both applications and their data can be located on the same PC or on two PC’s in a network. The third party software has to be compatible with the Software Synchronization Tool (SST). Contact RSscan International for further information. SST controller enabled: check this checkbox to enable the Software Synchronization Tool (SST).

When enabled, the footscan® balance software will react to commands from the Software Synchronization Tool (SST). Local server: check this checkbox to use this PC for both applications. Server IP number: enter the IP address of the PC where the second application is located. Local IP: shows the IP address of this PC.

7 Recalibration

Recalibration factor: the recalibration factor is calculated automatically during the weight scaling calibration. It can be altered manually if required. Calibration file: shows the calibration file used with

the connected footscan® plate.

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CALIBRATION

During weight scaling calibration, the software will determine a recalibration factor which is used to

calibrate future measurements. It is advised to calibrate your footscan® system weekly. Click the Calibration screen button on the Main screen to start the weight scaling calibration. 1. Enter your weight and click OK.

2. Walk on the footscan® plate. 3. Click OK when the recalibration procedure is

finished.

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DATABASE

Patient details and measurements per patient are stored in the database. The Database screen also provides access to the measurement and analysis functions. Click the Database button on the Main screen to access the database and measurements screen. Patient details and selection Patient records can be created and maintained. Click a patient in the Patients selection box to select that patient.

1 Locate a patient in the patient database. All patients will be shown by default. Search: enter data in any of the Search item fields and click the Search button. Only patients matching the criteria will be displayed in the Patients selection box. Show all: click the Show all button to display the entire patient list.

2 Add patient button. Click to add a new patient to the patient database. The Patient # will be assigned automatically and sequentially. Enter the patient’s details, * indicates a mandatory field. Click Add to add the patient to the patient database or Cancel to cancel the entry.

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3 Edit patient button. Click to edit the selected patient’s details. Edit where required, click Update to store the changes or Cancel to cancel the changes.

4 Delete button. Click to delete the selected patient and all associated measurements for this patient. Click Yes to confirm or No to cancel.

5 Return to main screen button. Click to return to the Main screen of the footscan® software.

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Measurement selection and functions

When a patient is selected in the Patients selection box, any stored measurements for that patient appear in the Measurements box, new measurements can be made.

1 Stability button. Click to display the selected measurement or to take a new Stability measurement. Refer to page 17 for the Stability measurement screen.

2 Training button. Click to access the training features. Refer to page 23.

3 Delete button. Click to delete the selected measurement. Click Yes to confirm or No to cancel.

4 Printouts button. Click to access the Print menu screen. Refer to page 28 for the Print menu screen.

5 Export button. Click to access the Export menu screen. Refer to page 30 for the Export menu screen.

6 Export from DB button. Select a measurement and click the Export from DB button to export the measurement.

Select the folder where you want to save the measurement. Click OK to save or Cancel to cancel.

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7 Import to DB button. Click to import measurements.

Select the file you want to import. Click OK to import or Cancel to cancel.

8 Backup DB button. Click to back-up the entire database. A copy of the database is made at the selected folder. The default filename of the database is “NewBalanceDB”. Select the folder where you want to save the database. Click OK to save or Cancel to cancel. To restore a backed-up database, copy the file to the location where the database is located (see preferences), the default location is C:\Program

Files\footscan balance 7.x USB2 2xxx.xx.xx\Settings\database\

9 Return to main screen button. Click to return to the Main screen of the footscan® software.

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Compare stability functions

Two stability measurements of a patient can be compared.

1 Compare selection box. The measurements in this box are selected to be compared.

2 Deselect all measurements button. Click to remove all measurements from the compare selection box.

3 Deselect measurement button. Click to remove the highlighted measurement from the compare selection box.

4 Select measurement button. Click to add the highlighted measurement from the measurements box to the compare selection box.

5 Select all measurements button. Click to add all measurements from the measurements box to the compare selection box.

6 Compare stability button. Click to access the Compare stability screen. The Compare stability button will be enabled when two measurements are selected. Refer to page 22 for the Compare stability screen.

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STABILITY

The stability or balance measurement is a dynamic measurement capturing the pressure distribution under the patient’s feet and the displacement of the center of force (COF) while the patient is standing

on the footscan® plate. Before you take your first stability measurement, make sure the footscan® system is configured and weight calibration is done.

Taking a stability measurement

1 Select a patient in the patients selection box on the database screen. Click the Stability button.

When a measurement is selected in the measurements selection box on the database screen, that measurement will

be displayed on the stability screen.

2 Enter the weight of the patient and select the shoe size from the dropdown list. Click OK when finished.

3 Measure button. Click to start the measurement. Press ‘Escape’ to cancel. The actual recording of the measurement starts after the preset delay and ends when the maximum measurement time has elapsed. Note that the preview mode is enabled by default and will be disabled when the measure button is clicked.

When the measurement is completed, a wide range of analytical options is at your disposal to interpret the measurement.

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Pressure and COF image

1 Dynamic image of the pressure.

The view loops continuously through all frames and can be paused with the Pause button. The magnitude of pressure distribution is shown based on a colour scale. Blue representing the lowest pressure, red representing the highest pressure. Black represents absence of pressure. The dotted line shows the displacement of the center of force (COF) during the measurement.

2 The yellow divider line(s) can be used to divide the image into sections. The number of divider lines depends on the Quadrant settings. Click and drag the divider lines to change the divisions.

3 Maximum pressure indicator. The blue bar indicates the maximum pressure on the foot relative to the full range. Click and drag to change the color scaling of the images.

4 Numerical information on the measurement.

Center of force curves The center of force curves show the displacement of the center of force in the X (blue) and Y (red) directions. The X-axis shows the time in ms. The blue bar indicates the position of the current frame of the dynamic image relative to the total measurement. When paused, click and drag the blue bar or click the up or down arrows to scroll through the frames. The dotted green lines indicate the intervals, click and drag to change the intervals.

Force curves The force curves show the vertical force in N (Newton) for each of the sections. The X-axis shows the time in ms. The blue curve shows the total force.

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Stability screen

1 Preview. Click to preview the

measurement. The preview mode is enabled by default and will be disabled when the measure button is clicked.

2 Timing setting. Click to set the delay before the start of the measurement. The measurement starts when the measure button is clicked and the delay has expired.

Enter the time delay before the start of the measurement (milliseconds). Click Clear to clear the delay setting, click Continue to store the setting or Cancel to cancel.

3 Recording speed and recording time. Select the recording speed and corresponding recording time from the dropdown list.

4 Pause. Click to pause the dynamic image.

5 Save measurement. Click to save the measurement. A new measurement can be saved, the save button will also be enabled if changes to an existing measurement are made (divider lines or intervals).

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6 Print. Click to print the measurement. The pressure images are based on the selected time intervals.

7 Maximum pressure image. Click to show the maximum foot pressure.

8 Quadrant settings. Click to show the list of available settings. Click any of the settings to toggle or select.

Division of the measurement:

Left / Right Front / Back Left / Right Front / Back 4 Quadrants

COF cursor: Set cross to center Lock cross to COF

COF: Show split COF Show quadrant percentages Large COF indicator

9 View intervals. Click to show the pressure for each of the time intervals.

a Print. Refer to paragraph 6 on page 20.

b Interval settings. Refer to paragraph 10 on page 21.

c The curves show the displacement of the center

of force in the X (blue) and Y (red) directions. The X-axis shows the time in ms. The dotted green lines indicate the intervals, click and drag to change the intervals. The solid green lines indicate the ellipse area.

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d Pressure image and displacement of COF for each time interval. An ellipse area representing the spread of the COF is calculated for each interval. Click on any of the graphs to zoom in.

e Maximum pressure image. Click to show the

maximum foot pressure.

f Pause. Click to pause the dynamic image.

g Dynamic image of the pressure. The view loops continuously through all frames and can be paused with the Pause button. The divider line(s) can be used to divide the image into sections. The number of divider lines depends on the Quadrant settings. Click and drag the divider lines to change the divisions.

h The velocity of COF in mm/ms. Indicates when the patient moved and when the patient was in

balance.

i The displacement in mm in X (blue) and Y (red) direction related to the COF. Indicates the direction of movement.

j The sway rate graph combines the velocity and the location of the COF.

k Left foot versus right foot forces. -100% indicates the entire weight of the patient is supported by

the right foot, +100% indicates the entire weight of the patient is supported by the left foot.

l Numerical information on the interval, ellipse area and COF traveled way.

10 Interval settings. Click to show the list of available settings. Click any of the settings to toggle or select.

Add interval: adds an extra interval if there are less than 6 intervals.

Remove interval: removes the last interval.

Set intervals to predefined positions: sets the time intervals to the settings in the preferences.

Set intervals equal: sets the time intervals to equal lengths.

Noptel timing: not applicable in this software version.

Restore intervals from file: restore the intervals from the saved measurement.

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COMPARE STABILITY MEASUREMENTS Two measurements of a patient can be compared, for example before and after an injury or treatment. Refer to page 16 for the selection of measurements in the database screen and access to the compare screen.

1 Dynamic image of the pressure. The view loops continuously through all frames and can be paused with the Pause button. Click on any of the graphs to zoom in. Refer to paragraph 9 on page 20.

2 The tooltip shows the type of footscan® plate.

3 The center of force curves show the displacement of the center of force in the X (blue) and Y (red) directions. The X-axis shows the time in ms. The dotted green lines indicate the intervals.

4 Numerical information on both measurements.

5 Maximum pressure indicator. The blue bar indicates the maximum pressure on the foot relative to the full range. Click and drag to change the color scaling of the images.

6 The blue bar indicates the position of the current frame of the dynamic image relative to the total measurement. When paused, click and drag the blue bar or click the up or down arrows to scroll through the frames.

7 Pause. Click to pause the dynamic image.

8 Maximum pressure image. Click to show the maximum foot pressure.

9 Interval settings. Click to show the list of available settings. Click any of the settings to toggle or select.

Interval settings from measurement A: use the intervals from the first measurement.

Interval settings from measurement B: use the intervals from the second measurement. Interval settings from preferences: use the interval setting from the preferences.

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TRAINING Balance or stability exercises can be created, viewed, exercised and analyzed. 1 Select a patient in the patients selection box on

the database screen. Click the Training button.

2 Enter the weight of the patient and select the shoe size from the dropdown list. Click OK when finished.

3 The training exercise list shows the available training exercises for the selected patient. Select a training exercise from the list to view, delete or train.

4 Training. Click to train the selected training exercise. Refer to page 26.

5 Cancel. Click to return to the Database screen.

6 Create. Click to create a new training exercise. Refer to page 24.

7 View. Click to view the selected training exercise. Refer to page 25.

8 Delete. Click to delete the selected training exercise.

Click Yes to confirm or No to cancel.

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Create a new training exercise

A balance or stability exercise pattern (based on the displacement of COF) can be drawn using the mouse. An exercise can be based on one or two feet.

1 The drawing of the exercise. Before the Start button is clicked, the yellow COF cursor can be moved to another starting position.

2 The time (in seconds) related to the position of the COF cursor on the drawing. When finished, the total time of the exercise.

3 Start. Click to start drawing. Click and drag the yellow COF cursor to draw the exercise. The speed at which you draw will be the exercise speed, the time shown is related to the position of the COF.

4 Stop. Click to stop drawing.

5 Clear. Click to clear the drawing.

6 Save. Click to save the training exercise.

Enter a name for the exercise. Click OK to save or Cancel to cancel.

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View a training exercise

Select an exercise on the training exercise list to view.

1 The drawing of the exercise. The yellow COF cursor indicates the position of the COF at the given time.

2 The time (in seconds) related to the position of the COF cursor on the drawing.

3 Start. Click to view the exercise, the yellow COF cursor will move according to the indicated time.

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Training

Select an exercise on the training exercise list. Make sure the patient has a good view on the exercise screen.

1 The drawing of the exercise and, when the patient

is standing on the footscan® plate, the measured pressure in real time.

2 The time (in seconds) related to the position of the COF cursor on the drawing.

3 The color scale of the pressure measurement.

4 Measure. Have the patient stand on the footscan® plate (with one or two feet, depending on the intended exercise).

Let the patient find his balance until the measured COF (yellow crosshair) is positioned at the start of the exercise. Click the Measure button to start the exercise. When the measure button is clicked, the exercise pattern (COF displacement) might be scaled to fit within the currently measured area.

The object of the exercise is to have the patient change his balance so that the COF of the measurement (yellow crosshair) follows the green cursor (indicating the progress of the exercise). The measurement will end when the exercise pattern is completed.

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5 View. Click to view the analysis of the completed training.

a The progress of the exercise COF, the measured COF and the difference, in the X-direction.

b The progress of the exercise COF, the

measured COF and the difference, in the Y-direction.

c The exercise COF.

d The measured COF.

6 Create. Click to create a new training exercise, the new exercise will be selected on return.

The current measurement will be lost. Click Yes to confirm or No to cancel.

On return to the Database screen, a warning will be issued that the measurement cannot be saved. Click Yes to confirm or No to cancel.

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PRINTOUTS Refer to page 14 for the selection of measurements in the database screen and access to the Print menu screen.

1 Click the radio buttons to select the printouts.

2 Options buttons. Click to set the options for each printout. Not all options are available for every printout type.

a Selection. Click the radio buttons to select the left and/or right foot.

b Scale. Click the radio buttons to select the scale

of the printout.

c Check the checkbox to select the printout by default when entering the Print menu screen.

d Check the checkbox to preview the printout

before printing.

e Check the checkbox to print the personalized footer on the printout. Refer to page 8 for the settings.

f Set as default button. Click to save the settings.

g Cancel button. Click to cancel the changes to the printout options settings.

3 Print button. Click to print the selected printouts.

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Stability printout

The stability printout shows the pressure distribution under the patient’s feet for each of the selected intervals.

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EXPORTS Refer to page 14 for the selection of measurements in the database screen and access to the Export menu screen.

1 Click the radio buttons to select the exports.

2 Options buttons. Click to set the options for each export. Not all options are available for every export type.

a Selection. Click the radio buttons to select the selection options (if any).

b Check the checkbox to select the export by

default when entering the Export menu screen.

c Check the checkbox to include header information in the export file.

d Check the checkbox to add an .xls (Excel)

extension to the export filename automatically.

e Check the checkbox to use the default folder to store the export file.

f Browse button. Click to browse and select the default folder for the exports.

g Set as default button. Click to save the settings.

h Cancel button. Click to cancel the changes to the export options settings.

3 Export button. Click to export the selected measurements.