Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


10541.pdf (202.1 KB)

ETD Abstract Container

Abstract Header

The investigation of the difference in observed knee valgus displacement during an overhead squat and the box drop landing maneuver in a pre-pubertal adolescent population in males and females.

Grisez, Anne T, M.S.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1408709928

Abstract Details

2014, MS, University of Cincinnati, Education, Criminal Justice, and Human Services: Health Education.
Context: Knee valgus or medial knee displacement during sports with bounding, landing and cutting has been reported as a common risk factor resulting in injury for teenage and adolescent athletic participants. Squatting maneuvers and landing mechanics have been used to evaluate the occurrence of knee valgus displacement. Commonly squat mechanics are used during rapid change in directions and landing from a jump; however, the occurrence of knee valgus in pre-pubertal adolescents has not been evaluated. Objective: To investigate the difference in observed knee valgus displacement during an overhead squat and the box drop landing maneuver in pre-pubertal adolescent males and females. Design: Prospective cohort study. Setting: Laboratory. Patients or Other Participants: Sixty-two elementary school students, with a mean age= 9.32, height= 54.38cm, and weight= 79.04lbs for males and a mean age= 9.37, height= 53.80cm, and weight= 74.81lbs for females. Intervention(s): Overhead squat and box drop landing maneuver. Main Outcome Measure(s): Visual observation of a frontal plane knee valgus displacement of approximately 10 degrees. Results: A two-tailed independent Student’s t-test indicated females have significantly greater occurrence of observed knee valgus defects when compared to males during the squat (P= .008). Overall, females had more than two-times the observed knee valgus defects when compared to males (females= 21, males= 10) and more observed left, right, and bilateral defects; however, a two-tailed independent Student’s t-test indicated no significant difference between sexes during the box drop landing maneuver (P= .33). Conclusions: Observed valgus knee displacement was observed in both male and female pre-adolescents. The greater occurrence of knee valgus displacement in females is unexplained. Further research is needed to explore the differences between sexes and the implementation of early interventions targeting knee valgus displacement.
Bradley Wilson, Ph.D. (Committee Chair)
Thomas Palmer, Ph.D. (Committee Member)
16 p.
Biomechanics
knee valgus displacement; knee injury prevention; assessment tools; pre-pubertal adolescents; neuromuscular training

Recommended Citations

Citations

  • Grisez, A. T. (2014). The investigation of the difference in observed knee valgus displacement during an overhead squat and the box drop landing maneuver in a pre-pubertal adolescent population in males and females. [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1408709928

    APA Style (7th edition)

  • Grisez, Anne. The investigation of the difference in observed knee valgus displacement during an overhead squat and the box drop landing maneuver in a pre-pubertal adolescent population in males and females. 2014. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1408709928.

    MLA Style (8th edition)

  • Grisez, Anne. "The investigation of the difference in observed knee valgus displacement during an overhead squat and the box drop landing maneuver in a pre-pubertal adolescent population in males and females." Master's thesis, University of Cincinnati, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1408709928

    Chicago Manual of Style (17th edition)

ucin1408709928
455
© 2014, some rights reserved.Creative Commons License The investigation of the difference in observed knee valgus displacement during an overhead squat and the box drop landing maneuver in a pre-pubertal adolescent population in males and females. by Anne T Grisez M.S. is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.