Are electromyographic patterns during gait related to abnormality level of the gait in patients with spastic cerebral palsy?

• Autorzy: Syczewska M. , Święcicka A.

Identyfikatory

DOI

10.5277/ABB-00474-2015-02

• Języki publikacji: EN

Abstrakty

EN

Purpose: One of the aims of the treatment in ambulant cerebral palsy (CP) patients is improvement of gait. Level of gait pathology is assessed by instrumented gait analysis, including surface electromyography. The aim of this study was to investigate the relation of the abnormality level of the gait and the co-contraction of the agonist-antagonist muscles, and relation between symmetry left /right leg in gait and symmetry of muscular activity. Methods: Fifty one patients with Cerebral Palsy underwent clinical assessment and instrumented gait analysis, including surface electromyography. Signals were bilaterally collected from rectus femoris, medial and lateral hamstrings, tibialis anterior, lateral gastrocnemius and gluteus maximus. In older children additionally signals from soleus and lateral vastus were recorded. Sixteen gait variables were selected to calculate Gillette Gait Index, separately for left and right leg. From the envelopes the series of cross-correlation coefficients were calculated. Results: Weak correlations were found between averaged agonist-antagonist correlation coefficient and Gillette Gait Index. Differences between hemiparetic less-involved legs, hemiparetic spastic legs, and diplegic legs were found for co-contraction of rectus femoris and biceps femoris and for averaged agonist-antagonist co-contraction. The differences between hemiparetic and diplegic groups were found for some muscle correlation coefficients. Conclusions: The results obtained in this study show, that the activity pattern of the leg muscles is specific for a given patient, and the dependence of the kinematics pathology on the abnormal activation pattern is not a direct one.

Słowa kluczowe

EN

cerebral palsy; gait; EMG patterns

PL

porażenie mózgowe; chód; EMG

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2016
• Tom: Vol. 18, no. 3
• Opis fizyczny: Bibliogr. 11 poz., wykr.

Twórcy

autor

Syczewska M.

• Department of Pediatric Rehabilitation, The Children's Memorial Health Institute, Warsaw, Poland

autor

Święcicka A.

• Department of Pediatric Rehabilitation, The Children's Memorial Health Institute, Warsaw, Poland

Bibliografia

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• [7]. van der Houwen L.E.E., Scholtes V.A., Becher J.G., Harlaar J. Botulinum toxin A injections do not improve surface EMG patterns during gait in children with cerebral palsy—A randomized controlled study. Gait & Posture, 2011, vol. 33(2), 147-151.
• [8]. Wakeling J., Delaney R., Dudkiewicz I. A method for quantifying dynamic muscle dysfunction in children and young adults with cerebral palsy. Gait & Posture, 2007, vol. 25, 580-589.
• [9]. Wren T.A.L., Do K.P., Rethlefsen S.A., Healy B. Cross-correlation as a method for comparing dynamic electromyograhy signals during gait. J Biomech, 2006, vol. 39, 2714-2718.
• [10]. www.seniam.org
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.