Related Experiment Video
Updated: Nov 29, 2025
Home-Based Monitor for Gait and Activity Analysis
Published on: August 8, 2019
Reliability and Validity of the Lower Extremity Motor Activity Log for Measuring Real-World Leg Use in Adults With
Sarah M Dos Anjos1, Victor W Mark2, Christina M Rodriguez3
1Department of Occupational Therapy, University of Alabama at Birmingham, Birmingham, AL.
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.
