Abstract
Objectives
To determine the test-retest reliability and validity of the Lower Extremity Motor
Activity Log (LE-MAL) for assessing LE use in the community in adults with multiple
sclerosis (MS).
Design
Prospective analysis of measures conducted by trained examiners.
Setting
Participants were evaluated by telephone on several measures of LE use.
Participants
Adults with MS (N=43).
Interventions
Not applicable.
Main Outcome Measures
The LE-MAL has 3 subscales (Assistance, Functional Performance, and Confidence). It
was administered twice, at least 2 weeks apart. The Multiple Sclerosis Walking Scale
(MSWS-12), Patient Determined Disease Steps (PDDS), and Mobility Scale were only administered
during the first call.
Results
The test-retest reliability of the composite and the 3 subscale LE-MAL scores were
high (intraclass correlation, >0.94). The composite and subscale LE-MAL scores were
strongly correlated with the MSWS-12, PDDS, and Mobility Scale scores (r=–0.56 to –0.77; P<.001).
Conclusion
This initial study suggests that the LE-MAL reliably and validly measures LE use in
the community in adults with MS.
Keywords
List of abbreviations:
AS (Assistance Scale), CFA (confirmatory factor analysis), CFI (comparative fit index), CS (Confidence Scale), FP (Functional Performance Scale), ICC (intraclass correlation coefficient), LE (lower extremity), LE-MAL (Lower Extremity Motor Activity Log), MAL (Motor Activity Log), MS (multiple sclerosis), MSWS-12 (Multiple Sclerosis Waking Scale), PDDS (Patient Determined Disease Steps), PT (physical therapy), RMSEA (root mean square error of approximation), TLI (Tucker-Lewis index), UE (upper extremity)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: November 20, 2020
Footnotes
Disclosures: none.
Identification
Copyright
© 2020 by the American Congress of Rehabilitation Medicine
