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Updated: Jun 13, 2026
Enhancing Upper Limb Function and Motor Skills Post-Stroke Through an Upper Limb Rehabilitation Robot
Published on: September 6, 2024
Upper limb spasticity reduction following active training: a robot-mediated study in patients with chronic
Federico Posteraro1, Stefano Mazzoleni, Sara Aliboni
1Auxilium Vitae Rehabilitation Center, Volterra Italy Borgo San Lazzero 5, Volterra, Pisa, Italy. f.posteraro@riabilitazione-volterra.it
Objective:
To compare the effects on spasticity of 2 robot-mediated therapies in patients with chronic hemiparesis.
Design:
Groups comparison.
Subjects:
Thirty-four patients, divided into 2 homogeneous groups.
Methods:
Outcome measures were: motor status score, Modified Ashworth scale, and range of motion. A pattern of reaching exercises was implemented, in which the direction and length of the movements were modified with the aim of reducing activity of the flexor muscles and improving extension of the arm. A 3-month follow-up was performed.
Results:
Statistically significant improvements were found in both groups after treatment. Some differences were found in elbow motor improvement between the 2 groups.
Conclusion:
Comparison between groups confirms that active movement training does not result in increased hypertonia, but results in spasticity reduction in antagonist muscles by activating the reciprocal inhibition mechanism. Furthermore, robot-mediated therapy contributes to a decrease in motor impairment of the upper limbs in subjects with chronic hemiparesis, resulting in a reduction in shoulder pain.
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