OptoGait User Guide Installation and Use

  

  

Contents

Necessary Equipment…………………………………………………………….1

Initial Installation.……………………………………….…...........………........….2

Utilising the OptoGait Software……….……….…….……………....…….3 - 28

Camera Setup ….…………………….…………….………..…….3 - 4 Hardware Test …………………………………….….…………….5 - 6

Additional Devices ……………………….…………...….…........7 - 8

Creating a Patient ………………………………….……..…….9 - 10

Setting Up a Test………………………………….…….............11 - 14

Running a Test…………………………….…….…….…………15 - 18

Managing Data……………………………….……..………….19 - 22

Using Biofeedback Mode ………………….……..................23 - 25

Support from GMF and Help Functions………………….…26 – 27

Further Technical Support…………………………….…………….28

  

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Necessary Equipment The equipment needed for a standard OptoGait set-up includes the following:

The following cables are also required to operate the OptoGait system:

Lemo cable (small silver cable with red dot, x1). Optional – used In combination with EMG.

Power cables for charging the TX and RX bars (x2).

USB cable

Laptop charging cable for extensive data collection sessions.

Transmitting (labelled TX) Bar Receiving (labelled RX) Bar Logitech Camera with Tripod (x2)

Laptop/Computer with OptoGait Software Installed

  

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Initial Installation The RX and TX bars should be placed on either side of a treadmill or in a large, open floorspace with the LED strips facing each other. When setting up a treadmill gait test, the interface sides of the bars should be placed at the front of the treadmill.

1) After placing the TX and RX Bars in the correct position, plug in the power cables for each bar. When an OptoGait system is being used for the first time, the RX and TX bars may need to be charged prior to use.

2) The Lemo (if EMG is in use) and USB cables are plugged into the RX bars and then directly into the lap

top/computer via a USB port. Please note: A standard OptoGait set-up requires three computer USB port to connect the RX bar cables and Logitech Cameras.

3) The Cameras should be placed on a side and rear view (see Necessary Equipment for reference). When

using the OptoGait system for research purposes, a frontal view camera may be adopted.

4) The OptoGait system can be switched on using the power switches, located on the interface side of both the TX and RX bars.

5) Initially, a red LED light will appear and then change to green after 2-3 seconds to show that the TX and

RX bars are connected to each other. In the case that no green LED light appears, make sure that the bars are parallel to each other and that no external objects are obstructing the floor space/treadmill belt.

6) After the RX and TX bars are connected to each other, switch on the computer/laptop and open up the

OptoGait software. The OptoGait loading screen then appear and typically take 1 – 2 minutes to load.

Interface Side of Bars

LED strips

  

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Utilising the Optogait Software Camera Setup 1) To select the cameras currently plugged into the laptop/computer, click on ‘Utilities’ in the top right-hand

corner.

 

 

 

 

 

   

 

2) Go to the ‘Video’ section and select Video 1 and Video 2, for example Logitech Pro Webcam C920, Logitech Pro Webcam C920 #2.

3) Click on ‘Test’ and select the gain and exposure of each camera. Clicking on the ‘Auto’ tick box for both gain and exposure will produce the optimum image quality.

  

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4) Click on ‘Advanced’ to select the camera zoom, contrast, brightness, saturation, sharpness and focus. This section allows the user to select the optimum image quality for all aspects of the video image.

5) To finalise any changes made to video 1 and/or 2, select ‘Confirm’.

  

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Hardware Test 1) To perform a OptoGait hardware test, click on ‘Utilities’ in the top right-hand corner.

2) Click on ‘OptoGait hw Test’

3) To execute a hardware test, select ‘Execute’.

  

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4) After selecting ‘Execute’, the software will perform a standard hardware test. Any interferences between the LED’s will appear in red on the diagram below the video image. If there are no interferences between the LED’s, then testing can begin.

5) If there are any issues relating to the LED’s, Click ‘Hardware Reset’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

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Additional Devices To use the OptoGait in combination with another device, for example Gyko or EMG, click on ‘Utilities’.

1) Click on ‘Basic Settings’.

2) Click on ‘Devices’.

3) Having followed the instructions for the device, click on ‘New Search’ to see all the available devices. If the additional device has been connected correctly, the device will appear in the ‘Available Devices’ section.

4) After selecting the device, click on the specific device and select ‘Activate’. The selected

device will then appear in the ‘Active Device’ section.

5) After the device appears in the ‘Available Devices’ section, click ‘Update’ to confirm the device selection.

6) Devices can also be removed by clicking ‘Remove’.

  

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Creating a Patient 1) To create a patient, click on ‘Patients’ tab in the top left-hand corner.

2) Click on ‘Insert/Modify Patient’.

3) To create a new patient, click on ‘New Patient’ in the top right-hand corner. On this page the

patients name, date of birth, height, weight, gender, an image for reference purposes and other information can be added.

4) The patients foot size can then be measured by clicking ‘Acquire Foot Size’. A pop-up will then

appear that reads ‘Acquiring Foot Size’. At this stage, the patient should be instructed to stand between the TX and RX bars and their foot size will be subsequently measured.

  

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5) After inputting any necessary details, the three ways to save the patient’s profile (all located in the top right-hand corner) includes:

‐ ‘Save’ – Save and go back to the OptoGait home screen.

‐ ‘Save and New’ – Save and create a further new patient.

‐ ‘Save and Execute’ – Save and begin a patient test.

  

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Setting Up a Test 1) To execute a test, click on the ‘Test’ tab on the top tool bar. 2) To execute a test directly, click on ‘Execute’. This will then allow the clinician to select the

patient, as well as the type of exercise and protocol they wish to run.

3) To create a test, click on ‘Define/Modify Tests’.

4) Click on ‘New Test’.

5) Input the test details including the patients name, test type, start type, starting foot, end type, test duration, treadmill speed and any notes that may be specific to the test.

6) Click ‘Save’.

  

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7) Tests can be modified by clicking on ‘Edit Test’, ‘Duplicate Test’ or transferred by clicking on

‘Export Test’ or ‘Import Test’.

8) An existing test, for example Treadmill Walking 3MPH or 5KP/H, can be selected from the scroll down list labelled ‘Test’.

9) To create or edit a test, click on ‘Define/Modify Protocols’.

  

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10) Click ‘New Protocol’.

11) After clicking ‘New Protocol’, Select the protocol(s) and click on the sideward arrow to move them to the section labelled ‘Protocol’.

12) Click ‘Save’.

13) Protocols can be modified or deleted by clicking on ‘Edit Protocol’ or ‘Delete Protocol’.

  

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14) An existing protocol (Body Sway Protocol, Single Leg 3 Hops 2D Protocol etc.) can be selected from the scroll down list labelled ‘Protocol’.

  

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Running a Test  

1) After clicking on ‘Execute’, select the patient, test and protocol.

2) If the software visuals need to be altered, click on ‘Configuration’ and choose to either show or hide charts, display video and quantitative data, and alter the overall execution of the test.

3) To start the test, click ‘Execute’.

  

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4) A pop-up will appear highlighting the direction of the treadmill belt and selected speed. After selecting the speed on the OptoGait software, set the same speed on the treadmill.

5) To start the test, click ‘Start’.

  

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6) The test will start after selecting the starting foot. After clicking on the left or right foot icon, data collection will begin.

7) If the test is being stopped by a ‘Software Command’ (manually), click ‘Stop’ to finish the test. Otherwise, if the test is being stopped by ‘End of Time’, wait for the time to run out.

  

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8) During the test, real-time data (including standard deviations) will be collected within the ‘Gait Report’ section of the testing screen. This screen will also display video footage from both cameras and a pie chart demonstrating the time that the patient spent within pre-selected thresholds for the variable of choice, for example the figure below shows that the patient spent 11% of a 1-minute treadmill gait test in the ‘good’ (green) threshold for Stance Phase.

9) After the test has finished, click ‘Save’ to save the test data.

  

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Managing Data

1) To access the data, click on the ‘Results’ tab on the top tool bar.

2) Select the patient data and click on the sideward arrow to move the data from the ‘Test List’

(left) to the ‘Test Analysis’ (right).

3) Click ‘View’ to look at the results screen. On this screen two pieces of data (e.g. returning visits/follow-ups) can be compared by clicking ‘Compare’ and look at an individual patient’s test history by pressing ‘History’.

  

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4) From the ‘Results’ screen, a number of gait, speed and time parameters can be viewed by using

the scroll bar in the ‘Gait Report’ section.

5) In the ‘Gait Report’ section, click on the magnifying glass icons (displayed in green or yellow) to view the muscle activation and sequencing data for the gait parameters.

  

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6) In the ‘Gait Report’ section, click ‘Print’ to print a data report. There is also the option to add

markers to specific parts of the video file by clicking ‘Markers’.

7) The video files from both cameras can be played and skipped in the top left-hand side of the ‘Gait Report’ section.

  

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8) The activation of each lower extremity muscle during gait can be viewed here by using the scroll bars.

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Using Biofeedback

1) To access Biofeedback mode, click on ‘Biofeedback’ on the top tool bar.

2) To start a test, click one of the following test options:‐ ‘Treadmill walking test’. ‐ ‘Treadmill running test’. ‐ ‘March in place test’.

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3) ‘Biofeedback’ mode requires no further test setup. Simply, input the treadmill’s selected speedand choose a view of either asymmetries or absolute values by clicking on the three-horizontalline icon in the top right-hand corner.

4) The ‘Opto for Kids’ can be selected as a more engaging method of gait analysis for children. Forthis option, the child must display a good gait threshold to avoid the dragon rolling down the hill.The selected gait parameter can be altered by pressing on the downwards, grey arrow.

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5) All biofeedback tests can be stopped by clicking ‘Stop’.

6) After stopping the Biofeedback test, a pie chart will be displayed showing the time (andpercentage) that the customer spent with the good (green), fair (orange) and red (bad)thresholds for the selected gait parameter. The thresholds can be altered by dragging the blacktriangle icon on the left-hand side, outwards.

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Support from GMF 1) To access information on the standard phases of gait, click on GMF (Gait, Muscles and

Functions) on the top tool bar.

2) Click on the drop-down arrow to view a particular phase of the gait.

3) To alter the speed, play or skip the video, use the sliding bar and buttons below the ‘GeneralVideo’.

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Further Technical Support

1) To be redirected to the full OptoGait manual, click on ‘Help’ on the top tool bar.

For further technical support from Algeos, contact Ben on +44(0)151 448 1228 or on

support@algeos.com