Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Robot-Assisted Therapy Influence on Kinematic and EMG Activity in the Upper Limb for Children with Cerebral Palsy

Version 1 : Received: 23 December 2019 / Approved: 3 January 2020 / Online: 3 January 2020 (02:38:16 CET)

How to cite: Raouafi, S.; Raison, M.; Achiche, S. Robot-Assisted Therapy Influence on Kinematic and EMG Activity in the Upper Limb for Children with Cerebral Palsy. Preprints 2020, 2020010021. https://doi.org/10.20944/preprints202001.0021.v1 Raouafi, S.; Raison, M.; Achiche, S. Robot-Assisted Therapy Influence on Kinematic and EMG Activity in the Upper Limb for Children with Cerebral Palsy. Preprints 2020, 2020010021. https://doi.org/10.20944/preprints202001.0021.v1

Abstract

Aim: To develop an index for quantitative assessment of the upper limb motor function in children with cerebral palsy before and after robot-assisted therapy. Method: An upper limb motor function index was developed using kinematic, surface electromyography and three-axis inertial measurements unit data collected from 15 children with cerebral palsy (CP) and 15 typically developed children. Children with CP underwent 18 robot-assisted therapy sessions with the REAplan device. All children were evaluated, using kinematic data from the REAplan, electromyography and three-axis inertial measurements unit readings from its accelerometer. A principal component analysis was conducted to produce an evaluation index, which is able to detect the deviation from the upper limb motor function of typically developing children group. Children with CP were evaluated twice before and after the intervention with Box and Blocks test and Finger-To-Nose test. The discriminative and concurrent validity of the upper limb motor function index were investigated. Results: The upper limb motor function index was higher in children with CP post therapy (p<0.001). Finger-To-Nose test values improved after robot-assisted therapy (p<0.03). A weak but positive correlation was observed between upper limb motor function index and clinical tests (r=0.012, p=0.95 and r=0.13, p= 0.54 for Box and Blocks test and Finger-To-Nose test respectively). Interpretation: The upper limb motor function index successfully differentiated between the typically developing children and children with CP and was effective in assessing the improvement of the upper limb motor function after robot-assisted therapy. The upper limb motor function index could be extended to assess and monitor rehabilitation therapies of other populations, such as those with stroke and Parkinson’s disease.

Keywords

cerebral palsy; robot assisted therapy; EMG; kinematic

Subject

Public Health and Healthcare, Physical Therapy, Sports Therapy and Rehabilitation

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