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Predictive value of upper-limb accelerometry in acute stroke with hemiparesis

Predictive value of upper-limb accelerometry in acute stroke with hemiparesis. Nick Gebruers, PhD, PT; Steven Truijen, PhD, MSc; Sebastiaan Engelborghs, PhD, MD; Peter P. De Deyn, PhD, MD. Aim Investigate how well early activity measurements by accelerometers predict recovery after stroke.

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Predictive value of upper-limb accelerometry in acute stroke with hemiparesis

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  1. Predictive value of upper-limb accelerometry in acute stroke with hemiparesis Nick Gebruers, PhD, PT; Steven Truijen, PhD, MSc; Sebastiaan Engelborghs, PhD, MD; Peter P. De Deyn, PhD, MD

  2. Aim • Investigate how well early activity measurements by accelerometers predict recovery after stroke. • Relevance • No previous studies have investigated predictive value of early accelerometer measurements in acute stroke for upper-limb recovery.

  3. Method • Assessed predictive value of accelerometer-based measurements of upper-limb activity in acute stroke with hemiplegic arm. • Established difference in arm activity between 129 hospitalized stroke and 19 nonstroke patients. • Monitored activity of upper limbs for 48 h to determine predictive value of activity variables compared with modified Rankin Scale (mRS) assessed at 3 mo poststroke onset.

  4. Results • Activity of impaired arm (AIA) in relation to mRS: • Sensitivity: 0.80 • Specificity: 0.77 • Ratio variable calculated by dividing AIA by activity of nonimpaired arm in relation to mRS: • Sensitivity: 0.85 • Specificity: 0.75 • Corresponding cut-off values were 597,546 counts for AIA and 0.33 for ratio.

  5. Conclusion • Predictive value of AIA combined with age: • 85% to disability status defined as mRS score of 2.

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