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The relationship of lower extremity ...

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The relationship of lower extremity muscle strength and body composition to balance in healthy adults.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The relationship of lower extremity muscle strength and body composition to balance in healthy adults./
Author:	Chiplis, Paula Kehaulani Yim.
Description:	149 p.
Notes:	Advisers: Victoria Mock; E. Jeffrey Metter.
Contained By:	Dissertation Abstracts International67-04A.
Subject:	Gerontology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3213676
ISBN:	9780542643002

The relationship of lower extremity muscle strength and body composition to balance in healthy adults.
Chiplis, Paula Kehaulani Yim.

The relationship of lower extremity muscle strength and body composition to balance in healthy adults. - 149 p.

Advisers: Victoria Mock; E. Jeffrey Metter.

Thesis (Ph.D.)--The Johns Hopkins University, 2006.

Maintaining postural balance is crucial to mobility. Mobility limitations predict more severe disablement as well as falls, hip fractures, recurrent hospitalizations and institutionalization. One third of persons aged 65 years or older sustain a fall annually with

ISBN: 9780542643002Subjects--Topical Terms:

533633
Gerontology.

The relationship of lower extremity muscle strength and body composition to balance in healthy adults.
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005 20110920
008 110921s2006 eng d
020 $a 9780542643002
035 $a (UMI)AAI3213676
035 $a AAI3213676
040 $a UMI $c UMI
100 1 $a Chiplis, Paula Kehaulani Yim. $3 1293610
245 1 4 $a The relationship of lower extremity muscle strength and body composition to balance in healthy adults.
300 $a 149 p.
500 $a Advisers: Victoria Mock; E. Jeffrey Metter.
500 $a Source: Dissertation Abstracts International, Volume: 67-04, Section: A, page: 1474.
502 $a Thesis (Ph.D.)--The Johns Hopkins University, 2006.
520 $a Maintaining postural balance is crucial to mobility. Mobility limitations predict more severe disablement as well as falls, hip fractures, recurrent hospitalizations and institutionalization. One third of persons aged 65 years or older sustain a fall annually with $1 0 billion spent in acute care treating hip fractures alone. An important national health goal (Healthy People 2010, (USDHHS, 2000) is to "...help individuals of all ages increase life expectancy and improve their quality of life." Identifying modifiable factors underlying postural stability to delay the onset or decrease the slope of functional decline is of key importance.
520 $a To determine the association of lower extremity muscle strength and body composition to balance in healthy adults, this study was conducted as a substudy within a larger effort supported by the National Aeronautics and Space Administration (NASA) and National Institute on Aging (NIA). Specific aims of the substudy were to: (1) Determine if lower extremity muscle strength independently predicts balance ability after accounting for body composition. (a) Determine if the relationship between lower extremity muscle strength and balance differs across three age groups. (2) Determine if there is a difference in balance between men and women of the same age group. (3) Determine if age independently predicts balance after statistical adjustment for lower extremity muscle strength and body composition.
520 $a Using a cross-sectional design, 171 healthy men and women aged 20 to 90 years participating in the Baltimore Longitudinal Study of Aging (BLSA) had balance, lower extremity muscle strength and body composition assessments using the modified EquitestRTM, KinCom dynamometer and dual-energy x-ray absorptiometry (DEXA) scanning (Model DPX-L, LUNAR Radiation Corp., Madison, WI), respectively. Hypothesized relationships were tested using multiple regression analysis, ANOVA, and GLM univariate analysis.
520 $a There were no significant relationships between lower extremity muscle strength and each of the six Sensory Organization Test (SOT) balance scores for the sample as a whole and for each of the age groups. Sex differences in balance occurred in two protocols, SOT 2 and SOT 6. Women performed better than men in quiet stance with eyes closed (SOT 2). Men performed better than women in the most challenging protocol, SOT 6, with older women performing much worse than men compared to younger and mid-age women. Age was the only predictor of balance.
520 $a Two probable reasons for the lack of correlation between balance and strength were (1) the sample was too healthy and therefore too strong to demonstrate a relationship and (2) the EquitestRTM SOT protocol challenged sensory aspects of balance instead of strength. This study suggests that when presented with a sensory balance challenge healthy adults in their 60's may not learn to maintain their balance as readily from prior experience as younger adults even though their balance scores were no different than younger adults.
590 $a School code: 0098.
650 4 $a Gerontology. $3 533633
650 4 $a Health Sciences, Human Development. $3 1019218
650 4 $a Health Sciences, Nursing. $3 1017798
690 $a 0351
690 $a 0569
690 $a 0758
710 2 0 $a The Johns Hopkins University. $3 1017431
773 0 $t Dissertation Abstracts International $g 67-04A.
790 $a 0098
790 1 0 $a Metter, E. Jeffrey, $e advisor
790 1 0 $a Mock, Victoria, $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3213676