Features of movement disorders in children with consequences of birth injury of the brachial plexus and their correction by functional biofeedback

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Abstract

In 11 children with moderate and severe obstetric brachial palsy the analysis of EMG data of periarticular shoulder muscles was performed. Changes in reciprocal relations of muscles-antagonists as well as of deltoid oscillation frequency increase up to 180 Hz were determined. Author's theory was that the changes of deltoid functional action and its compensatory remodelling on tonic type were possible. That supposition was confirmed by the treatment results of patients using biocontrol. Method of differentiated biofeedback on EMG was applied. During 6-7 months of treatment an adequate interaction of periarticular muscles-antagonists was achieved, active deltoid function (> 3 points) was obtained, decrease of deltoid oscillation frequency up to 120 Hz was noted

About the authors

I. S. Kosov

Central Institute of Traumatology and Orthopedics N.N. Priorov

Author for correspondence.
Email: info@eco-vector.com
Russian Federation, Moscow

References

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Supplementary files

Supplementary Files
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1. JATS XML
2. Fig. 1. EMG of the anterior (1) and posterior (2) portions of the deltoid muscle, trapezius (3) and pectoralis major (4) muscles of a patient with Duchenne-Erb paresis.

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3. Fig. 2. EMG spectrum of the trapezius (1), pectoralis major (2), deltoid (3) muscles on the affected side and deltoid muscle on the healthy side (4).

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4. Fig. 3. EMG of the anterior (1), posterior (2) portions of the deltoid muscle, trapezius (3) and pectoralis major (4) muscles and the EMG spectrum of the deltoid muscle of patient Sh. before treatment.

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5. Fig. 4. EMG of the anterior (1), posterior (2) portions of the deltoid muscle, trapezius (3) and pectoralis major (4) muscles and the EMG spectrum of the deltoid muscle of patient Sh. after treatment.

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6. Fig. 5. Functional result of treatment of patient Sh.

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