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Factors relating to outcomes on the maximum voluntary effort test Iwama, Michael
Abstract
The Maximum Voluntary Effort testA b(MstrVaEct) is an integral part of a battery of tests commonly referred to as the Functional Capacity Evaluation (FCE). The MVE purportedly measures sincerity of effort by analyzing the degree of variation in repeated maximal handgrip strength trials. However not much is known about the performances of chronically disabled people on the MVE and the construct validity of the test is unclear. The first purpose of this study was to describe the performance of a chronically injured population and compare it with known performances, particularly Matheson, Carlton and Niemeyer's (1989) sample. The second purpose was to determine how certain factors of a chronically injured population related to MVE outcome measures. Descriptive and correlative statistical analyses were applied to data collected from the chart records of 100 consecutive injury claimants (female n= 69, male n=31) who had undergone an FCE at a private rehabilitation clinic in the lower mainland region of British Columbia. The performances of the total, female, and male samples on the MVE test were analyzed according to peak grip strength and variability. Maximum Voluntary Effort test outcomes (dependent variable) were examined according to their relationship to 5 demographic and 5 diagnostic independent variables. Expected patterns of grip-strength performance were generally observed. A curvilinear relationship between strength and age was evident with mean grip strength scores peaking at the 31-36 years of age cohort for both genders. Male and dominant hand measures were slightly greater than female and non-dominant hand, respectively. Generally, grip-strength was substantially diminuted suggesting decreased physical strength and fatigue tolerance trends among the sample. Compared with Matheson et al's sample, median grip scores were similar but variance was generally greater by as much as 5.5%. Three of the 10 independent variables showed statistically significant relationships with MVE outcomes; 'occupation' (demographic variable, Chi Square= 13.562, df=5, p=.019), 'referral source' (diagnostic variable, Chi Square= 23.306, df=l, p=.000) and number of injury 'episodes' (diagnostic variable, Chi Square=27.600, df=2, p=.000). The relationship of depression, measured by the BDI, with MVE outcomes remained unclear as 16 subjects with positive MVEs had not completed the BDI.
Item Metadata
Title |
Factors relating to outcomes on the maximum voluntary effort test
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1998
|
Description |
The Maximum Voluntary Effort testA b(MstrVaEct) is an integral part of a battery of tests
commonly referred to as the Functional Capacity Evaluation (FCE). The MVE purportedly
measures sincerity of effort by analyzing the degree of variation in repeated maximal handgrip
strength trials. However not much is known about the performances of chronically disabled
people on the MVE and the construct validity of the test is unclear.
The first purpose of this study was to describe the performance of a chronically injured
population and compare it with known performances, particularly Matheson, Carlton and
Niemeyer's (1989) sample. The second purpose was to determine how certain factors of a
chronically injured population related to MVE outcome measures.
Descriptive and correlative statistical analyses were applied to data collected from the
chart records of 100 consecutive injury claimants (female n= 69, male n=31) who had undergone
an FCE at a private rehabilitation clinic in the lower mainland region of British Columbia. The
performances of the total, female, and male samples on the MVE test were analyzed according to
peak grip strength and variability. Maximum Voluntary Effort test outcomes (dependent
variable) were examined according to their relationship to 5 demographic and 5 diagnostic
independent variables.
Expected patterns of grip-strength performance were generally observed. A curvilinear
relationship between strength and age was evident with mean grip strength scores peaking at the
31-36 years of age cohort for both genders. Male and dominant hand measures were slightly
greater than female and non-dominant hand, respectively. Generally, grip-strength was
substantially diminuted suggesting decreased physical strength and fatigue tolerance trends
among the sample. Compared with Matheson et al's sample, median grip scores were similar but
variance was generally greater by as much as 5.5%. Three of the 10 independent variables showed statistically significant relationships with
MVE outcomes; 'occupation' (demographic variable, Chi Square= 13.562, df=5, p=.019), 'referral
source' (diagnostic variable, Chi Square= 23.306, df=l, p=.000) and number of injury 'episodes'
(diagnostic variable, Chi Square=27.600, df=2, p=.000). The relationship of depression,
measured by the BDI, with MVE outcomes remained unclear as 16 subjects with positive MVEs
had not completed the BDI.
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Extent |
9622130 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-05-25
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0088549
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1998-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.