on October 13, 2005
Published online before print October 13, 2005, doi: 10.1161/01.STR.0000185928.90848.2e
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Submitted on July 22, 2005
From the Department of Psychology (G.U., E.T., M.V.) and the Department of Physical Therapy, School of Health Related Professions (D.M.), University of Alabama at Birmingham; and the Division of Physical Therapy (K.M.), University of North Carolina at Chapel Hill. * To whom correspondence should be addressed. E-mail: guswatte{at}uab.edu.
Background and Purpose--In research on Constraint-Induced Movement (CI) therapy, a structured interview, the Motor Activity Log (MAL), is used to assess how stroke survivors use their more-impaired arm outside the laboratory. This article examines the psychometrics of the 14-item version of this instrument in 2 chronic stroke samples with mild-to-moderate upper-extremity hemiparesis. Methods--Participants (n=41) in the first study completed MALs before and after CI therapy or a placebo control procedure. In addition, caregivers independently completed a MAL on the participants. Participants (n=27) in the second study completed MALs and wore accelerometers that monitored their arm movements for 3 days outside the laboratory before and after an automated form of CI therapy. Results--Validity of the participant MAL Quality of Movement (QOM) scale was supported. Correlations between pretreatment-to-posttreatment change scores on the participant QOM scale and caregiver MAL QOM scale, caregiver MAL amount of use (AOU) scale, and accelerometer recordings were 0.70, 0.73, and 0.91 (P<0.01), respectively. Internal consistency ( Conclusions--The participant MAL QOM scale can be used exclusively to reliably and validly measure real-world, upper-extremity rehabilitation outcome and functional status in chronic stroke patients with mild-to-moderate hemiparesis.
Accepted on August 15, 2005
Reliability and Validity of the Upper-Extremity Motor Activity Log-14 for Measuring Real-World Arm Use
Gitendra Uswatte PhD*;
>0.81), test-retest reliability (r>0.91), stability, and responsiveness (ratio >3) of the participant QOM scale were also supported. The participant AOU and caregiver QOM and AOU scales were internally consistent, stable, and sensitive, but were not reliable.
Key words: arm • function • rehabilitation • treatment outcome • stroke
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