Stereoscopic filming for investigating evasive side-stepping and anterior cruciate ligament injury risk

Marcus J. C. Lee; Paul Bourke; Jacqueline A. Alderson; David G. Lloyd; Brendan Lay

doi:10.1117/12.840153

18 February 2010 Stereoscopic filming for investigating evasive side-stepping and anterior cruciate ligament injury risk

Marcus J. C. Lee, Paul Bourke, Jacqueline A. Alderson, David G. Lloyd, Brendan Lay

Author Affiliations +

Proceedings Volume 7524, Stereoscopic Displays and Applications XXI; 752406 (2010) https://doi.org/10.1117/12.840153
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States

Abstract

Non-contact anterior cruciate ligament (ACL) injuries are serious and debilitating, often resulting from the performance of evasive sides-stepping (Ssg) by team sport athletes. Previous laboratory based investigations of evasive Ssg have used generic visual stimuli to simulate realistic time and space constraints that athletes experience in the preparation and execution of the manoeuvre. However, the use of unrealistic visual stimuli to impose these constraints may not be accurately identifying the relationship between the perceptual demands and ACL loading during Ssg in actual game environments. We propose that stereoscopically filmed footage featuring sport specific opposing defender/s simulating a tackle on the viewer, when used as visual stimuli, could improve the ecological validity of laboratory based investigations of evasive Ssg. Due to the need for precision and not just the experience of viewing depth in these scenarios, a rigorous filming process built on key geometric considerations and equipment development to enable a separation of 6.5 cm between two commodity cameras had to be undertaken. Within safety limits, this could be an invaluable tool in enabling more accurate investigations of the associations between evasive Ssg and ACL injury risk.

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Marcus J. C. Lee, Paul Bourke, Jacqueline A. Alderson, David G. Lloyd, and Brendan Lay "Stereoscopic filming for investigating evasive side-stepping and anterior cruciate ligament injury risk", Proc. SPIE 7524, Stereoscopic Displays and Applications XXI, 752406 (18 February 2010); https://doi.org/10.1117/12.840153

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