Longitudinal stability of the Fugl-Meyer Assessment of the upper extremity.

Published

Journal Article

To investigate the longitudinal stability of the Fugl-Meyer Assessment (FMA) of the upper-extremity item difficulties by using Rasch analysis.Secondary analysis of existing data from a cohort longitudinal study of stroke recovery.University research center.A total of 377 people, ages 69.2+/-11.2 years, to whom the assessment was administered at 2 weeks and 6 months poststroke.Not applicable.Differential item function analysis performed by using the Winsteps software program examined whether the item difficulty hierarchical order of a modified 30-item FMA for the upper extremity (reflex items removed) was invariant across 2 testing occasions.Only 2 items (shoulder flexion to 180 degrees, movement with normal speed) showed large differences in test-retest item difficulty calibration. Item instability had no practical consequences on the longitudinal measurement of person ability.The 30-item assessment shows a longitudinally stable item difficulty order and is valid for measuring volitional arm motor ability over time.

Full Text

Cited Authors

  • Woodbury, ML; Velozo, CA; Richards, LG; Duncan, PW; Studenski, S; Lai, S-M

Published Date

  • August 2008

Published In

Volume / Issue

  • 89 / 8

Start / End Page

  • 1563 - 1569

PubMed ID

  • 18674991

Pubmed Central ID

  • 18674991

Electronic International Standard Serial Number (EISSN)

  • 1532-821X

International Standard Serial Number (ISSN)

  • 0003-9993

Digital Object Identifier (DOI)

  • 10.1016/j.apmr.2007.12.041

Language

  • eng