Portable Inexpensive Motion Analysis System to Identify Female Athletes at High Risk of Knee ACL Tear

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Project Summary

Project Description

The general objective is to develop and test a prototype ACL Gold computer software utilizing the Microsoft Kinect motion sensor that includes a screening tool and intervention to help prevent ACL tears in female youth athletes.  The program measures the knee abduction angle during specific jumping and cutting tasks.  High knee abduction angles have previously been shown to be risk factors for ACL rupture.   ACL Gold will enable health care providers, coaches and parents to identify athletes at increased risk of suffering an ACL tear and begin injury prevention programs on those athletes.  These programs typically incorporate exercises that improve core strength, decrease single leg dominance, increase hamstring strength.

Specific Aims

  • Develop and validate the accuracy of the ACL Gold algorithms against Vicon marker-based motion capture for measurement of knee angles during a Drop Vertical Jump
  • Develop the ACL Gold screening software which includes a user interface and instant reporting of knee angles during the Drop Vertical Jump.
  • Measure knee angles during the drop box vertical jump in over 100 high school athletes who compete in soccer, basketball or volleyball and follow during the academic year for ACL injuries
  • Perform a feasibility survey of high school athletes to evaluate the potential use of a video game intervention that incorporates ACL injury prevention exercises and immediate biofeedback on landing/cutting technique.
Screenshot of the ACL Gold measurements at initial contact and peak flexion, as captured by the Microsoft Kinect during the Drop Vertical Jump
Screenshot of the ACL Gold measurements at initial contact and peak flexion, as captured by the Microsoft Kinect during the Drop Vertical Jump

Papers

Sherman, S. Gulbrandsen T, Miller S, Guess T, Willis B, Blecha K, Huo Z, Skubic M, Gray A. “Mass Screening of Youth Athletes for High Risk Landing Patterns using a Portable and Inexpensive Motion Sensor Device.” AOSSM. Accepted Poster Presentation for the Annual AOSSM Meeting. Colorado Springs, CO. July 2016

Willis BW, Razu S, Jahandar A, Gray A, Skubic M, Sherman S, Blecha K, Guess T. “Gender Differences During the Modified Star Excursion Balance Test.” GCMAS, Poster Presentation. Memphis, TN May 2016.

Sherman S, Willis BW, Guess T, Gray A, Skubic M, Blecha K. “Mass Screening of Youth Athletes for High Risk Landing Patterns Using a Portable and Inexpensive Motion Sensor Device: Efficiency, Gender Disparities and Continued Validity of the Xbox Kinect for Assessing ACL Injury Risk. ACL Study Group. Are, Sweden. March 13-17. 2016.

Huo Z, Griffin J, Babiuch R, Gray A, Willis B, Skubic M & Sun S, “Examining the Feasibility of a Microsoft Kinect Based Game Intervention for Individuals with Anterior Cruciate Ligament Injury Risk,” Proceedings IEEE International Conference of the Engineering in Medicine and Biology Society, Milan, Italy, August 2015, pp 7059-7062

D. Gray, J. M. Marks, E. E. Stone, M. C. Butler, M. Skubic, and S. L. Sherman, “Validation of the Microsoft Kinect as a Portable and Inexpensive Screening Tool for Identifying Acl Injury Risk,” The Orthopaedic Journal of Sports Medicine, vol. 2, 2014.

ACL Study Group 1/2014 – CapeTown, South Africa: Podium Presentation: Validation of an inexpensive portable sensor for measuring knee abduction angle during a drop vertical jump

Stone E, Butler M, McRuer A, Gray A, Marks J & Skubic M, “Evaluation of the Microsoft Kinect for Screening ACL Injury,” Proceedings, IEEE 2013 International Conference of the Engineering in Medicine and Biology Society (EMBC), Osaka, Japan, July 3-7, 2013.

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