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Contributing factors to chronic ankl...

Hubbard, Tricia Joan.

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Contributing factors to chronic ankle instability.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Contributing factors to chronic ankle instability./
Author:	Hubbard, Tricia Joan.
Description:	117 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5315.
Contained By:	Dissertation Abstracts International66-10B.
Subject:	Health Sciences, Medicine and Surgery. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3193196
ISBN:	0542359464

Contributing factors to chronic ankle instability.
Hubbard, Tricia Joan.

Contributing factors to chronic ankle instability. - 117 p.

Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5315.

Thesis (Ph.D.)--The Pennsylvania State University, 2005.

The development of repetitive ankle sprains and persistent symptoms after initial ankle sprain has been termed chronic ankle instability (CAI). Two contributing factors to CAI are functional ankle instability and mechanical ankle instability. The relationship of the specific insufficiencies to each other, or how they individually contribute to ankle instability, has not been examined. There is not a clear indication of what measures are most important in discriminating between individuals with and without CAI. Therefore, the purposes of this study were to (1) examine group comparisons of the involved ankle of the CAI group and the matched ankle of the control group for all dependent variables in subjects with unilateral CAI, (2) examine group comparisons of the symmetry indices of side-to-side differences for the same variables, and (3) examine the bivariate correlations between the variables in chronically unstable ankles. Thirty subjects with unilateral CAI and thirty healthy controls were tested. Measures of ankle laxity and hypomobility, static and dynamic balance, ankle and hip strength, selected lower extremity malalignments, and ITB flexibility were taken on both limbs of all subjects.

ISBN: 0542359464Subjects--Topical Terms:

1017756
Health Sciences, Medicine and Surgery.

Contributing factors to chronic ankle instability.
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245 1 0 $a Contributing factors to chronic ankle instability.
300 $a 117 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5315.
500 $a Adviser: Jay Hertel.
502 $a Thesis (Ph.D.)--The Pennsylvania State University, 2005.
520 $a The development of repetitive ankle sprains and persistent symptoms after initial ankle sprain has been termed chronic ankle instability (CAI). Two contributing factors to CAI are functional ankle instability and mechanical ankle instability. The relationship of the specific insufficiencies to each other, or how they individually contribute to ankle instability, has not been examined. There is not a clear indication of what measures are most important in discriminating between individuals with and without CAI. Therefore, the purposes of this study were to (1) examine group comparisons of the involved ankle of the CAI group and the matched ankle of the control group for all dependent variables in subjects with unilateral CAI, (2) examine group comparisons of the symmetry indices of side-to-side differences for the same variables, and (3) examine the bivariate correlations between the variables in chronically unstable ankles. Thirty subjects with unilateral CAI and thirty healthy controls were tested. Measures of ankle laxity and hypomobility, static and dynamic balance, ankle and hip strength, selected lower extremity malalignments, and ITB flexibility were taken on both limbs of all subjects.
520 $a Thirteen variables were identified as being significantly different between groups and were entered into a discriminant analysis. These variables explained 55.4% of CAI group membership. Eight variables were identified as being significantly different between groups and were entered into a discriminant analysis. These factors explained 46.5% of CAI group membership. The results of this study elucidate the specific measures that best discriminate between subjects with and without CAI. Measures of both mechanical and functional insufficiencies significantly contribute to the etiology of CAI.
590 $a School code: 0176.
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