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Fig. 2 | Journal of NeuroEngineering and Rehabilitation

Fig. 2

From: Reliable and valid robot-assisted assessments of hand proprioceptive, motor and sensorimotor impairments after stroke

Fig. 2

Gauge position matching task for the assessment of proprioceptive impairments. a The index finger is first passively moved to a target angle, and the subject then needs to indicate the perceived finger position on the tablet screen (no visual feedback is provided). The outcome measure is the error between indicated angle and target angle. Note that on the Fig. the screen is shown as semi-transparent for illustration purpose. During the assessment, patients cannot see the assessed finger, which is located underneath the tablet. b There is a high agreement (70%) in impairment classification between the gauge position matching task metric and the clinical measure of proprioception (kUDT). c The task metric has good (ICC\(>0.75\)) reliability on the less affected and excellent reliability (ICC\(>0.90\)) on the affected side. d The box plot indicates a trend of increasing position matching absolute error with increasing proprioceptive impairment (according to kUDT). There is a significant difference between control (N=62) and all stroke impaired sub-groups (kUDT=2: N=14, kUDT=1: N=8, kUDT=0: N=8). Acronyms - LA: less affected, A: affected, kUDT: kinesthetic Up-Down Test, ICC: intraclass correlation coefficient, SRD: smallest real difference. Statistical significance: p-value<0.05: *, p-value<0.01: **, p-value<0.001: ***

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