November 2017

Video overlay feedback helps improve biomechanics of sport-specific landing

In the moment: Sports medicine

By Jordana Bieze Foster

Video feedback is associated with improved landing mechanics—suggesting a reduced risk of anterior cruciate ligament injury—during a sport-specific task, according to research from the University of Groningen Medical Center in the Netherlands.

Investigators analyzed the landing mechanics of 16 elite female handball players as they performed a jump shot, aiming at a target. In two subsequent training sessions, eight players watched video of an expert using proper landing technique, overlaid with a silhouetted video of the player’s own landing mechanics for comparison. The other eight players received no feedback.

When the players’ landing mechanics were analyzed again following the training, knee, hip, and ankle flexion improved in the feedback group, as did Landing Error Scoring System scores; those measures did not change significantly over time in the control group. Shot accuracy and vertical jump height did not differ between groups, and horizontal jump distance improved over time in the feedback group only. The findings were epublished in October by the Journal of Athletic Training.

Source:

Benjaminse A, Postma W, Janssen I, Otten E. Video feedback and 2-dimensional landing kinematics in elite female handball players. J Athl Train 2017 Oct 16. [Epub ahead of print]

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