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  • Title: Self-perceived utilization of the paretic arm in chronic stroke requires high upper limb functional ability.
    Author: Fleming MK, Newham DJ, Roberts-Lewis SF, Sorinola IO.
    Journal: Arch Phys Med Rehabil; 2014 May; 95(5):918-24. PubMed ID: 24480335.
    Abstract:
    OBJECTIVE: To explore potential predictors of self-reported paretic arm use at baseline and after task-specific training (TST) in survivors of stroke. DESIGN: Data were obtained from a randomized controlled trial of somatosensory stimulation and upper limb TST in chronic stroke. SETTING: University laboratory. PARTICIPANTS: Chronic (≥3mo) survivors of stroke (N=33; mean age, 62y; mean stroke duration, 38mo). INTERVENTIONS: Participants received 12 sessions of TST preceded by either active (n=16) or sham (n=17) somatosensory stimulation to all 3 peripheral nerves. MAIN OUTCOME MEASURES: Demographic and clinical characteristics were entered stepwise into multiple linear regression analyses to determine the factors that best predict baseline Motor Activity Log (MAL) amount of use rating and change 3 months after TST. RESULTS: The Action Research Arm Test (ARAT) score predicted the amount of use at baseline (R(2)=.47, P<.001); in using this model, an ARAT score of 54 (maximum of 57) is required to score 2.5 on the MAL (use described as between rarely and sometimes). After TST the change in the ARAT score predicted the change in the amount of use (R(2)=.31, P=.001). The predictive power of the model for change at 3 months increased if the Fugl-Meyer Assessment wrist component score was added (R(2)=.41, P=.001). CONCLUSIONS: Utilization of the paretic upper limb in activities of daily living requires high functional ability. The increase in self-reported arm use after TST is dependent on the change in functional ability. These results provide further guidance for rehabilitation decisions.
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