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Cutoff Score of the Lower-Extremity Motor Subscale of Fugl-Meyer Assessment in Chronic Stroke Survivors: A Cross-Sectional Study

Published:March 19, 2019DOI:https://doi.org/10.1016/j.apmr.2019.01.027

      Abstract

      Objective

      To derive an optimal cutoff score for the lower-extremity motor subscale of the Fugl-Meyer Assessment (FMA) to differentiate stroke survivors with high mobility function from those with low mobility function using a data-driven approach.

      Design

      Cross-sectional study.

      Setting

      University-based clinical research laboratory.

      Participants

      Chronic stroke survivors (N=80) recruited from local self-help groups.

      Interventions

      Not applicable.

      Main Outcome Measures

      Lower-extremity motor subscale of Fugl-Meyer Assessment (FMA-LE), Berg Balance Scale, 5 times sit-to-stand test, comfortable walking speed, 6-minute walk test, and timed Up and Go test.

      Results

      K-mean clustering analysis classified 42 stroke survivors in the high mobility function group. The receiver operating characteristic curve showed that FMA-LE can differentiate stroke survivors based on their mobility level (area under the curve, 0.85). An FMA-LE score of 21 of 34 was the best cutoff score (sensitivity, 0.87; specificity: 0.81).

      Conclusions

      An FMA-LE score of 21 or higher could indicate a high level of mobility function in chronic stroke survivors.

      Keywords

      List of abbreviations:

      BBS (Berg Balance Scale), FMA-LE (lower-extremity motor subscale of Fugl-Meyer Assessment), FMA-UE (upper-extremity motor subscale of Fugl-Meyer Assessment), FTSTS (5 times sit-to-stand test), ROC (receiver operating characteristic), TUG (timed Up and Go)
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