Dual Kinect v2 system can capture lower limb kinematics reasonably well in a clinical setting: concurrent validity of a dual camera markerless motion capture system in professional football players. Issue 1 (17th December 2018)

• Record Type: Journal Article
• Authors: Kotsifaki, Argyro; Whiteley, Rodney; Hansen, Clint
• Is Part Of: BMJ open sport & exercise medicine. Volume 4:Issue 1(2018)
• Publication Date: 2018-12-17
• Subjects: 3D marker based system -- markerless motion capture -- Kinect -- kinematics; Sports medicine -- Periodicals; Exercise therapy -- Periodicals; 617.102705
• DOI: 10.1136/bmjsem-2018-000441
• Languages: English
• ISSNs: 2055-7647

Abstract

Abstract : Objectives: To determine whether a dual-camera markerless motion capture system can be used for lower limb kinematic evaluation in athletes in a preseason screening setting. Design: Descriptive laboratory study. Setting: Laboratory setting. Participants: Thirty-four (n=34) healthy athletes. Main outcome measures: Three dimensional lower limb kinematics during three functional tests: Single Leg Squat (SLS), Single Leg Jump, Modified Counter-movement Jump. The tests were simultaneously recorded using both a marker-based motion capture system and two Kinect v2 cameras using iPi Mocap Studio software. Results: Excellent agreement between systems for the flexion/extension range of motion of the shin during all tests and for the thigh abduction/adduction during SLS were seen. For peak angles, results showed excellent agreement for knee flexion. Poor correlation was seen for the rotation movements. Conclusions: This study supports the use of dual Kinect v2 configuration with the iPi software as a valid tool for assessment of sagittal and frontal plane hip and knee kinematic parameters but not axial rotation in athletes.