Measurement properties of streamlined wolf motor function test in patients at subacute to chronic stages after stroke

Hui Fang CHEN, Ching-yi WU, Keh-chung LIN, Yuh JANG, Shih-chieh LIN, Ju-wen CHENG, Chia-ying CHUNG, Yanning YAN

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Abstract

Background. Previous research using the streamlined Wolf Motor Function Test (SWMFT) has focused either on the 3- to 9-month period or on the >12-month period after stroke and lacked the information for those at 9 to 12 months. Whether SWMFT scores reflect motor deficit and recovery from early to late stages after stroke remains unclear. Objective. A retrospective study using the Functional Ability Scale (FAS) was conducted to evaluate whether all SWMFTs items measure the poststroke recovery of upper extremity (UE) motor function and if they could be used for patients within 9 to 12 months after a stroke. Methods. Rasch analysis was conducted, and data were drawn from patients 3 months to years after a stroke. Results. The continuum of UE motor function in SWMFT-FAS was supported. Subacute patients had the best motor function, followed by the 9- to 12-month group, and then chronic patients. Variation in UE motor function was large (2.35-2.72 logits), and motor abilities of these 3 groups overlapped. The 8 SWMFT items could target a broad range of UE motor function, from −8.28 to 7.80 logits. The average difficulty of these 8 items also matched the UE motor ability of the subgroup at 9 to 12 months after stroke, and individual versions of the SWMFT performed well to assess the motor ability of this group. Conclusions. The SWMFTs had sound hierarchical properties. The SWMFT-Chronic or the WMFT-Subacute could be used to evaluate UE function of this subgroup at 9 to 12 months after stroke. Copyright © 2014 University of Kansas Medical Center.
Original languageEnglish
Pages (from-to)839-846
JournalNeurorehabil Neural Repair
Volume28
Issue number9
DOIs
Publication statusPublished - Nov 2014

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Upper Extremity
Stroke
Retrospective Studies
Research

Citation

Chen, H.-f., Wu, C.-y., Lin, K.-c., Jang, Y., Lin, K.-c., Cheng, J.-w., et al. (2014). Measurement properties of streamlined wolf motor function test in patients at subacute to chronic stages after stroke. Neurorehabil Neural Repair, 28(9). 839-846.

Keywords

  • Cerebrovascular accident
  • Motor activity
  • Upper extremity
  • Recovery of function