Mr. Marcus J. C. Lee Profile

Marcus J. C. Lee

at Univ of Western Australia

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Proceedings Article | 18 February 2010 Paper

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

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

Proceedings Volume 7524, 752406 (2010) https://doi.org/10.1117/12.840153

KEYWORDS: Cameras, Injuries, Visualization, Eye, Calibration, Stereoscopic displays, Video, Lenses, Projection systems, Safety

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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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