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Generalizability of Center of Pressu...

University of Illinois at Urbana-Champaign.

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Generalizability of Center of Pressure measurements across age populations.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Generalizability of Center of Pressure measurements across age populations./
Author:	Doyle, Richard John.
Description:	146 p.
Notes:	Advisers: Karl Rosengren; Elizabeth Hsiao-Wecksler.
Contained By:	Dissertation Abstracts International69-05B.
Subject:	Health Sciences, General. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3314960
ISBN:	9780549650294

Generalizability of Center of Pressure measurements across age populations.
Doyle, Richard John.

Generalizability of Center of Pressure measurements across age populations. - 146 p.

Advisers: Karl Rosengren; Elizabeth Hsiao-Wecksler.

Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.

The reliability of common Center of Pressure (COP) measurements was systematically investigated. Studies on the control of posture during quiet standing using force platform data lack standardization in measurement protocols (especially trial length and number). Guidelines for methodology that met acceptable reliability levels were established in both normal and altered visual conditions (Studies 1 and 2) and across multiple age populations (Study 3). The tools of Generalizability Theory (G-Theory) were used to thoroughly examine the reliability of both summary and time-varying measurements of COP. G-Theory is a powerful reliability analysis tool that permits the systematic inspection of identified components of variance (i.e. length of trial and number of trials) and subsequently provides feedback on establishing protocols meeting acceptable levels of reliability. The results of all three studies indicate that, when investigating quiet standing using COP measurements from a force platform, a minimum of 5 trials should be completed at 60 seconds in length. Most measurements included in these studies reached acceptable levels of reliability at or before this point. Reliability is a critical component of research design and the guidelines established in these studies can be used when designing future studies.

ISBN: 9780549650294Subjects--Topical Terms:

1017817
Health Sciences, General.

Generalizability of Center of Pressure measurements across age populations.
LDR:02304nam 2200289 a 45 001 856697
005 20100709
008 100709s2008 ||||||||||||||||| ||eng d
020 $a 9780549650294
035 $a (UMI)AAI3314960
035 $a AAI3314960
040 $a UMI $c UMI
100 1 $a Doyle, Richard John. $3 1023543
245 1 0 $a Generalizability of Center of Pressure measurements across age populations.
300 $a 146 p.
500 $a Advisers: Karl Rosengren; Elizabeth Hsiao-Wecksler.
500 $a Source: Dissertation Abstracts International, Volume: 69-05, Section: B, page: 2883.
502 $a Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008.
520 $a The reliability of common Center of Pressure (COP) measurements was systematically investigated. Studies on the control of posture during quiet standing using force platform data lack standardization in measurement protocols (especially trial length and number). Guidelines for methodology that met acceptable reliability levels were established in both normal and altered visual conditions (Studies 1 and 2) and across multiple age populations (Study 3). The tools of Generalizability Theory (G-Theory) were used to thoroughly examine the reliability of both summary and time-varying measurements of COP. G-Theory is a powerful reliability analysis tool that permits the systematic inspection of identified components of variance (i.e. length of trial and number of trials) and subsequently provides feedback on establishing protocols meeting acceptable levels of reliability. The results of all three studies indicate that, when investigating quiet standing using COP measurements from a force platform, a minimum of 5 trials should be completed at 60 seconds in length. Most measurements included in these studies reached acceptable levels of reliability at or before this point. Reliability is a critical component of research design and the guidelines established in these studies can be used when designing future studies.
590 $a School code: 0090.
650 4 $a Health Sciences, General. $3 1017817
650 4 $a Health Sciences, Recreation. $3 1018003
690 $a 0566
690 $a 0575
710 2 $a University of Illinois at Urbana-Champaign. $3 626646
773 0 $t Dissertation Abstracts International $g 69-05B.
790 $a 0090
790 1 0 $a Hsiao-Wecksler, Elizabeth, $e advisor
790 1 0 $a Rosengren, Karl, $e advisor
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3314960