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  • Title: Effectiveness of somatosensory interventions on somatosensory, motor and functional outcomes in the upper limb post-stroke: A systematic review and meta-analysis.
    Author: Yilmazer C, Boccuni L, Thijs L, Verheyden G.
    Journal: NeuroRehabilitation; 2019; 44(4):459-477. PubMed ID: 31256086.
    Abstract:
    BACKGROUND: Research mainly focuses on motor recovery of the upper limb after stroke. Less attention has been paid to somatosensory recovery. OBJECTIVE: To review and summarize the effect of upper limb somatosensory interventions on somatosensory impairment, motor impairment, functional activity and participation after stroke. METHODS: Biomedical databases Ovid Medline, EMBASE, Web of Science, PEDro, and OTseeker were searched with an update in May 2018. Randomized controlled trials investigating the effect of somatosensory-specific interventions focusing on exteroceptive, proprioceptive or higher cortical somatosensory dysfunction, or any combination were eligible for inclusion. Quality of included studies were assessed using Physiotherapy Evidence Database (PEDro) scale. Standardized Mean Differences and Mean Differences and 95% confidence intervals were calculated and combined in meta-analyses. RESULTS: Active somatosensory interventions did not show a significant effect on somatosensation and activity, but demonstrated a significant improvement in motor impairment (SMD = 0.73, 95% CI = 0.14 to 1.32). No study evaluating active somatosensory intervention included participation. Passive somatosensory interventions significantly improved light touch sensation (SMD = 1.13, 95% CI = 0.20 to 2.05). Passive somatosensory interventions did not show significant effects on proprioception and higher cortical somatosensation, motor impairment, activity and participation. CONCLUSIONS: To date, there is low quality evidence suggesting active somatosensory interventions having a beneficial effect on upper limb impairment and very low quality evidence suggesting passive somatosensory interventions improving upper limb light touch sensation. There is a need for further well-designed trials of somatosensory rehabilitation post stroke.
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