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Therapy Kinection
Davis Farish, Scott Grace, Kyle Sarantsev, Chris Walton, Chris Witter
Computer Science Department
Agenda
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Project Origin/Goal
Microsoft Kinect
Vail Sport Test (VST)
Development Environment
System
Video Demo
Summary
©2012-2013 Computer Science Department, Texas Christian University
Origin of Project
• Wanted a project that utilized the Microsoft Kinect.
• Sought to contribute to the healthcare industry.
• Therapists were interested in validating the grading of the Vail
Sport Test.
• Currently use an expensive and complex system.
• Post analysis.
• Charges patients extra for the service.
• Requires patients to wear markers.
• Group proposed utilizing the Kinect to develop a cheaper,
simpler system.
• Allows real-time, automatic test analysis.
• No markers.
©2012-2013 Computer Science Department, Texas Christian University
Project Goal
• Objectively score the Vail Sport Test using the Kinect.
• Provide tool to validate the grading of the Vail Sport Test in the
Physical Therapy field.
• Create an inexpensive, user friendly, and easily deployable
system.
©2012-2013 Computer Science Department, Texas Christian University
Microsoft Kinect
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Interfaces with a Windows PC.
Joint data is presented as (X,Y,Z) coordinates.
Ability to track 20 joints on the human body.
Limitation: can only capture data 30 times a second.
©2012-2013 Computer Science Department, Texas Christian University
Vail Sport Test (VST)
• Used to assess Anterior Cruciate Ligament (ACL) injuries, as
well as other leg injuries.
• Allows therapists to determine if an athlete can return to
sport or not.
• Consists of 4 components, each designed to put stress on the
injured leg.
• Currently subjectively graded.
• Grading not used by all physical therapists.
©2012-2013 Computer Science Department, Texas Christian University
Kinect Hip Adjustment
• Kinect measures the hip joint at the Anterior Superior Iliac
Spine (ASIS).
• Physical therapists use the Greater Trochanter to measure the
knee flexion angle.
• Distance from Iliac Crest to Greater Trochanter, is the Y offset.
• Distance from Iliac Crest to ASIS, is the Z offset.
• Offsets are stored in the database for each
new patient prior to testing.
©2012-2013 Computer Science Department, Texas Christian University
Components of VST
• Single Leg Squat
• 3 minutes, max of 15 points.
• 5 points for each minute interval.
• Lateral Bounding
• 90 seconds, max of 15 points.
• 5 points for each 30 second interval.
• Forward Jogging
• 2 minutes, max of 12 points.
• 6 points for each minute interval.
• Backward Jogging
• 2 minutes, max of 12 points.
• 6 points for each minute interval.
©2012-2013 Computer Science Department, Texas Christian University
Scoring
• Based on criteria provided by therapist Dr. Craig Garrison.
• Knee angle
• Between 30° and 60°
• Knee lock
• Must avoid knee lock during extension.
• Knee Valgus
• Knee position in relation to foot and hip.
• Trunk angle
• Forward, backward, left, and right.
• Landing position and duration
• Must be inside bounds and cant stay landed longer that 1 second
• Extension of patella
• Patient must avoid patella passing the toe.
• If a patient fails any of these standards 3 consecutive times, no point is
awarded for that standard of the current minute of the component.
• The patient must score 46/54 points to pass.
©2012-2013 Computer Science Department, Texas Christian University
Development Environment
• Windows
7 Environment
64 bit SP 1 System Development Environment
Primary
Support
System2010 Ultimate
Desktop Application
• Operating
Visual Studio
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Windows 7 SP 1 – 64-bit
File
Sharing
Kinect
Studio V 1.6.0
Tortoise SVN
Developer
CoreFTP Lite
Visual Studio 2010 – C# WPF Application
Kinect Developer Toolkit Browser V 1.6.0
Microsoft Kinect
Toolkit Browser VKinect
1.6.0
Studio V 1.6.0
Software
Necessary
for Express
Database
Microsoft
SQL Server
LocalDB
Project
Microsoft SQL Server Compact Edition
Microsoft Word 2010
Microsoft Excel 2010
Microsoft PowerPoint 2010
Adobe Creative Suite CS4/CS5
Camtasia Studio 8
©2012-2013 Computer Science Department, Texas Christian University
System Configuration
©2012-2013 Computer Science Department, Texas Christian University
Database Structure
PATIENT
PID Lname
Fname
INJURY
PID InjuryNum
Minit
Physician
CreateDate
Diag
Side
IC-GT
DateSurg
IC-ASIS
THR_ID
Active_Flag
StudyNum
Subject ID
StartDate
EndDate
TEST
PID
InjuryNum
TestID
TestDate
COMPONENT_1
PID
InjuryNum TID
Part1_1 Part1_2
Part1_3
Part1_4
Part1_5
Part1_Total Part1_Reps
COMPONENT_1 (Cont.)
Part1_Fin Part2_1
Part2_2 Part2_3 Part2_4
Part2_5
Part2_Total Part2_Reps Part2_Fin
Part3_1
COMPONENT_1 (Cont.)
Part3_2
Part3_3
Part3_4 Part3_5 Part2_Fin Part3_Total Part3_Reps TotalScore
©2012-2013 Computer Science Department, Texas Christian University
Database Interface
©2012-2013 Computer Science Department, Texas Christian University
Demo
©2012-2013 Computer Science Department, Texas Christian University
Results & Moving Forward
• Provides real-time, accurate feedback to the patients.
• Program can judge all standards at once.
• Difficult for a therapist to watch all standards at once.
• Patient benefits from improved accuracy in test
administration.
• Able to accurately measure joint angles within 5°.
• Required an increased tolerance for measurements; more
sensitive than the human eye
• In testing found high degree of success across a wide range of
subjects.
• Therapists will have the system to use on patient.
• Allows for validation of the grading of the Vail Sport Test.
• Current status: final testing, bug testing, cleaning up code.
©2012-2013 Computer Science Department, Texas Christian University
Questions?
©2012-2013 Computer Science Department, Texas Christian University