Award Date

1-1-2006

Degree Type

Thesis

Degree Name

Master of Science (MS)

Department

Kinesiology

First Committee Member

Mack Rubley

Number of Pages

63

Abstract

This study was performed to examine tibial rotation and valgus movement at the knee during dynamic sport-specific movements, a jump stop and a side cut maneuver associated with anterior cruciate ligament (ACL) injury. We aimed to assess whether six male and eight female skilled soccer athletes perform these maneuvers with different magnitudes of valgus movement and tibial rotation at the knee. Nine trials of each maneuver were analyzed for each subject. There was a significant difference between males and females for valgus angle at contact, maximum valgus angle, and maximum external rotation (p<0.05). There was no difference for any dependant variable between jump stop and side cut maneuver, and Sex * Maneuver no interaction. Though there is certainly more than one reason for greater number of ACL injuries in females, not finding a difference in valgus movement between the sexes may indicate that tibial rotation might play a greater role than valgus movement alone.

Keywords

Cutting; Knee; Movement; Rotation; Stopping; Tibial; Valgus

Controlled Subject

Kinesiology; Physiology

File Format

pdf

File Size

1433.6 KB

Degree Grantor

University of Nevada, Las Vegas

Language

English

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