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The Effect of a Video Feedback-Supplemented ACL Injury Prevention Program on Lower Extremity Biomechanics During a Cutting Task

Shearman, Kelsey Ann
http://rave.ohiolink.edu/etdc/view?acc_num=toledo1430522923

Abstract Details

2015, Master of Science, University of Toledo, Exercise Science.
An Abstract of The Effect of a Video Feedback-Supplemented ACL Injury Prevention Program on Lower Extremity Biomechanics During a Cutting Task By Kelsey Shearman Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Masters in Exercise Science The University of Toledo May 2015 Biomechanics during cutting and landing tasks are thought to contribute to the increased risk of non-contact ACL injuries in females. Neuromuscular training preventions, with the inclusion of augmented feedback, have been successful in decreasing high-risk biomechanics in controlled laboratory settings; however it remains unclear if the use of augmented feedback in a clinical setting will demonstrate similar changes. Therefore, the objective of this investigation was to determine if the addition of video tape augmented feedback to an ACL injury prevention program would improve lower extremity biomechanics during a cutting task. We hypothesized that participants in the feedback group would demonstrate knee abduction and hip adduction angles, knee abduction and hip adduction angles, and peak vertical ground reaction force (vGRF), and would also demonstrate an increase in external hip and knee flexion moments as well as hip abduction and knee adduction moments during a cutting task when compared to a control group. Sixteen female intercollegiate soccer players at the University of Toledo were recruited for this study. However, two participants were not included because they were no longer on the University of Toledo soccer team, while another sustained a previous injury that kept her from being able to participante. Sixteen female participants were recruited for this this study and randomized into one of two groups; feedback or control, but due to drop outs, thirteen were included in the final analysis (FB: n=6, 1.66 ± 0.03 m; 58.11 kg; 19.5 ± 0.83 yrs) (C: n=7, 1.66 ± 0.04 m; 63.16 ± 3.82 kg; 19.125 ± 0.83 yrs). Both groups completed a 9-week ACL injury prevention program two times per week. During the prevention program, all participants were recorded performing a squat jump task in both the frontal and sagittal planes during each week’s session. The feedback group later performed self analysis feedback followed by expert feedback given on their previously recorded squat jumps once per week whereas the control group was not provided any feedback on the task. Separate 2x2 analyses of variance with repeated measures on time were used to examine the differences for each kinetic and kinematic outcome measure. Post hoc t-tests were performed in the presence of a significant interaction. There were no significant differences between pre-post testing, or when comparing feedback and control groups for any of the biomechanical outcome measures. Although previous research has identified improvements in biomechanics following an ACL injury prevention program that utilized feedback as a modality, our modifications to the prevention program may have decreased its effectiveness. Furthermore, the use of video augmented feedback has previously been provided in real-time; therefore, the one to three day delay of feedback may have decreased the benefit of this feedback technique. In conclusion, video feedback given during a modified SportsMetrics prevention program may not augment changes in hip and knee biomechanics during a cutting task in collegiate female athletes.
Michele Pye, PhD, ATC (Committee Chair)
Luke Donovan, PhD, ATC (Committee Member)
Abbey Thomas, PhD, ATC (Committee Member)
Hayley Ericksen, PhD, ATC (Committee Member)
73 p.
Kinesiology
ACL, Feedback, Prevention

Recommended Citations

Citations

  • Shearman, K. A. (2015). The Effect of a Video Feedback-Supplemented ACL Injury Prevention Program on Lower Extremity Biomechanics During a Cutting Task [Master's thesis, University of Toledo]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1430522923

    APA Style (7th edition)

  • Shearman, Kelsey. The Effect of a Video Feedback-Supplemented ACL Injury Prevention Program on Lower Extremity Biomechanics During a Cutting Task . 2015. University of Toledo, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=toledo1430522923.

    MLA Style (8th edition)

  • Shearman, Kelsey. "The Effect of a Video Feedback-Supplemented ACL Injury Prevention Program on Lower Extremity Biomechanics During a Cutting Task ." Master's thesis, University of Toledo, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1430522923

    Chicago Manual of Style (17th edition)

toledo1430522923
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This open access ETD is published by University of Toledo and OhioLINK.