Wearable inertial sensors and pressure MAT detect risk factors associated with ACL graft failure that are not possible with traditional return to sport assessments

IntroductionAnterior cruciate ligament reconstruction (ACLR) is associated with poor return to sport and high graft re-rupture rates. This study explored the use of a wearable inertial sensor (ViMove) that incorporates an accelerometer and gyroscope, and MatScan pressure sensing mat (TekScan, South...

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Bibliographic Details
Published in:BMJ Open Sport & Exercise Medicine 2019-07, Vol.5 (1), p.e000557-e000557
Main Authors: Dan, Michael J, Lun, Kimberly Kai, Dan, Luke, Efird, Jimmy, Pelletier, Matthew, Broe, David, Walsh, William R
Format: Article
Language:English
Subjects:
accelerometer
Accelerometers
ACL
Gait
Knee
knee acl
Ligaments
Original
Original article
orthopaedics
Patients
Risk factors
Sensors
Software
sports
Surgery
Systematic review
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Summary:IntroductionAnterior cruciate ligament reconstruction (ACLR) is associated with poor return to sport and high graft re-rupture rates. This study explored the use of a wearable inertial sensor (ViMove) that incorporates an accelerometer and gyroscope, and MatScan pressure sensing mat (TekScan, South Boston, Massachusetts, USA) to provide objective return-to-sport measures.MethodsThree cohorts’ ACLR patients, non-athletic controls and elite athletes (Australian seven’s rugby Olympic Gold medallist). Patients performed biometric and functional tests (thigh circumference and triple hop) and the ViMove knee module (consisting of single and double leg squats, hops and box drops) for lower limb alignment assessment, concurrently with force plate.ResultsElite athletes had less varus/valgus (VV) movement during ViMove exercises compared with the ACLR cohort, who in turn had less VV malalignment than controls. When analysing side-to-side differences, single leg squats and box drop were asymmetrical in the ACL group, with greater malalignment in the reconstructed leg (p
ISSN:2055-7647
2055-7647
DOI:10.1136/bmjsem-2019-000557