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Investigation of the biomechanics of...

Golden, Grace M.

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Investigation of the biomechanics of running and rapid change-of-direction tasks.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Investigation of the biomechanics of running and rapid change-of-direction tasks./
Author:	Golden, Grace M.
Description:	203 p.
Notes:	Advisers: Mark A. Hoffman; Michael J. Pavol.
Contained By:	Dissertation Abstracts International68-06B.
Subject:	Health Sciences, Recreation. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3268287
ISBN:	9780549066903

Investigation of the biomechanics of running and rapid change-of-direction tasks.
Golden, Grace M.

Investigation of the biomechanics of running and rapid change-of-direction tasks. - 203 p.

Advisers: Mark A. Hoffman; Michael J. Pavol.

Thesis (Ph.D.)--Oregon State University, 2007.

Rapid change-of-direction tasks have been associated with non-contact anterior cruciate ligament (ACL) injuries and females are more likely to suffer this injury compared to males. The purpose of this investigation was to evaluate the biomechanical behavior of running and three rapid change-of-direction tasks and determine whether sex differences exist across tasks. The biomechanical factors included knee and hip kinematics and kinetics, in addition to static lower extremity alignment and dynamic hip strength. Data were collected in a controlled laboratory setting on healthy collegiate female and male basketball and soccer players (N = 21). Three-dimensional kinematics and kinetics were recorded in conditions of running, lateral false step, sidestep cut, and a combination of a lateral false step with a sidestep cut. Static lower extremity alignment was represented by measurement of standing Q-angle. Hip strength was determined by measuring isokinetic eccentric hip abduction strength. Three queries were addressed: (1) sex differences in the kinetics and kinematics of the knee and hip during running and rapid change-of-direction tasks, (2) the effect of sex on relationships of standing Q-angle and hip strength to frontal plane knee biomechanics, and (3) description of the patterning of knee and hip biomechanics across tasks and sex. The results of this study suggest knee abduction and internal moments of knee adduction and hip abduction increase when athletes step laterally in combination with a sidestep cut compared to all other tasks. Females demonstrate differences in hip position and loading compared to males across the four tasks. The data did not support evidence of an effect of sex on standing Q-angle or hip abduction strength. Additionally, no relationships between sex, standing Q-angle, or hip abduction strength to frontal plane knee biomechanics were found. Four patterns of knee and hip kinematics and kinetics were found to describe lower extremity biomechancis during running and rapid change-of direction tasks. In summary, the addition of frontal plane motion and loading during change-of-direction tasks significantly affected knee position in a manner associated with ACL injury. Differences in lower extremity kinematics and kinetics between females and males appear to be specific to hip position and loading.

ISBN: 9780549066903Subjects--Topical Terms:

1018003
Health Sciences, Recreation.

Investigation of the biomechanics of running and rapid change-of-direction tasks.
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005 20110519
008 110519s2007 eng d
020 $a 9780549066903
035 $a (UMI)AAI3268287
035 $a AAI3268287
040 $a UMI $c UMI
100 1 $a Golden, Grace M. $3 1265650
245 1 0 $a Investigation of the biomechanics of running and rapid change-of-direction tasks.
300 $a 203 p.
500 $a Advisers: Mark A. Hoffman; Michael J. Pavol.
500 $a Source: Dissertation Abstracts International, Volume: 68-06, Section: B, page: .
502 $a Thesis (Ph.D.)--Oregon State University, 2007.
520 $a Rapid change-of-direction tasks have been associated with non-contact anterior cruciate ligament (ACL) injuries and females are more likely to suffer this injury compared to males. The purpose of this investigation was to evaluate the biomechanical behavior of running and three rapid change-of-direction tasks and determine whether sex differences exist across tasks. The biomechanical factors included knee and hip kinematics and kinetics, in addition to static lower extremity alignment and dynamic hip strength. Data were collected in a controlled laboratory setting on healthy collegiate female and male basketball and soccer players (N = 21). Three-dimensional kinematics and kinetics were recorded in conditions of running, lateral false step, sidestep cut, and a combination of a lateral false step with a sidestep cut. Static lower extremity alignment was represented by measurement of standing Q-angle. Hip strength was determined by measuring isokinetic eccentric hip abduction strength. Three queries were addressed: (1) sex differences in the kinetics and kinematics of the knee and hip during running and rapid change-of-direction tasks, (2) the effect of sex on relationships of standing Q-angle and hip strength to frontal plane knee biomechanics, and (3) description of the patterning of knee and hip biomechanics across tasks and sex. The results of this study suggest knee abduction and internal moments of knee adduction and hip abduction increase when athletes step laterally in combination with a sidestep cut compared to all other tasks. Females demonstrate differences in hip position and loading compared to males across the four tasks. The data did not support evidence of an effect of sex on standing Q-angle or hip abduction strength. Additionally, no relationships between sex, standing Q-angle, or hip abduction strength to frontal plane knee biomechanics were found. Four patterns of knee and hip kinematics and kinetics were found to describe lower extremity biomechancis during running and rapid change-of direction tasks. In summary, the addition of frontal plane motion and loading during change-of-direction tasks significantly affected knee position in a manner associated with ACL injury. Differences in lower extremity kinematics and kinetics between females and males appear to be specific to hip position and loading.
590 $a School code: 0172.
650 4 $a Health Sciences, Recreation. $3 1018003
690 $a 0575
710 2 0 $a Oregon State University. $3 625720
773 0 $t Dissertation Abstracts International $g 68-06B.
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790 1 0 $a Hoffman, Mark A., $e advisor
790 1 0 $a Pavol, Michael J., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3268287