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The Therapeutic Effects of Low-Amplitude, High-Frequency Perturbations on Neuromuscular Abnormalities Associated With Spasticity in Children With Cerebral Palsy Publisher Pubmed



Noroozi S1 ; Lotfian M2 ; Nooshiravan F3 ; Shahrokhi A4 ; Irani A5 ; Mirbagheri MM6
Authors
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Authors Affiliations
  1. 1. Department of Biomedical Engineering, Islamic Azad Univesity, Sciens and Research Branch and Medico Rehabilitation Research Center, Iran
  2. 2. Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Science and Neural Engineering Research Center, Tehran, Iran
  3. 3. Department of Biomedical Engineering, Islamic Azad Univesity, Iran
  4. 4. Noorafshar Hospital, Tehran University of Medical Sciences and Neuralengineering Research Center, Tehran, Iran
  5. 5. Department of Occupational Therapy, Shahid Beheshti University of Medical Sciences Health Services, Tehran, Iran
  6. 6. Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences and Neuralengineering Research Center, Tehran, Iran

Source: Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society# EMBS Published:2019


Abstract

We aimed to investigate the impact of ankle joint therapy with low-amplitude, high-frequency perturbation training on neuromuscular abnormalities associated with spasticity in children with Cerebral Palsy (CP). Four spastic CP children (2 males and 2 females) received a 10-session training of high-frequency and low-amplitude perturbations superimposed on passive stretches over the range of motion of their ankle as well as local perturbations at dorsiflexion position. The associated passive parameters, including total passive range of motions, passive range of motions toward dorsiflexion, stiffness, energy loss and torque dynamic gain were evaluated at the baseline and after a 10 session training. Our findings indicate that passive range of motion increased, and passive reflex stiffness, which usually increases in CP children, decreased following the completion of training. Our results demonstrate that intensive sessions of perturbation therapy could be considered an effective therapeutic mean for the management of spasticity and contracture, and eventually the enhancement of mobility of CP children. © 2019 IEEE.
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