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A coactivation strategy in anticipatory postural adjustments during voluntary unilateral arm movement while standing in individuals with bilateral spastic cerebral palsy.
Kawaguchi, Daisuke; Tomita, Hidehito; Fukaya, Yoshiki; Kanai, Akira.
Afiliación
  • Kawaguchi D; Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, 9-3 Koyaba, Kouryuji-cho, Okazaki 444-0002, Japan; Graduate School of Health Sciences, Toyohashi SOZO University, 20-1 Matsushita, Ushikawa-cho, Toyohashi 440-8511, Japan.
  • Tomita H; Graduate School of Health Sciences, Toyohashi SOZO University, 20-1 Matsushita, Ushikawa-cho, Toyohashi 440-8511, Japan. Electronic address: h_tomita@sozo.ac.jp.
  • Fukaya Y; Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, 9-3 Koyaba, Kouryuji-cho, Okazaki 444-0002, Japan.
  • Kanai A; Graduate School of Health Sciences, Toyohashi SOZO University, 20-1 Matsushita, Ushikawa-cho, Toyohashi 440-8511, Japan.
Hum Mov Sci ; 96: 103255, 2024 Aug.
Article en En | MEDLINE | ID: mdl-39089055
ABSTRACT
Individuals with bilateral spastic cerebral palsy (BSCP) reportedly has problems with anticipatory postural adjustments (APAs) while standing. However, the use of coactivation strategy in APAs in individuals with BSCP has conflicting evidence. Hence, this study aimed to investigate postural muscle activities in BSCP during unilateral arm flexion task in which postural perturbations occur in the sagittal, frontal, and horizontal planes. We included 10 individuals with BSCP with level II on the Gross Motor Function Classification System (BSCP group) and 10 individuals without disability (control group). The participants stood on a force platform and rapidly flexed a shoulder from 0° to 90° at their own timing. Surface electromyograms were recorded from the rectus femoris, medial hamstring, tibialis anterior, and medial gastrocnemius. The control group showed a mixture of anticipatory activation and inhibition of postural muscles, whereas the BSCP group predominantly exhibited anticipatory activation with slight anticipatory inhibition. Compared with the control group, the BSCP group tended to activate the ipsilateral and contralateral postural muscles and the agonist-antagonist muscle pairs. The BSCP group had a larger disturbance in postural equilibrium, quantified by the peak displacement of center of pressure during the unilateral arm flexion, than those without disability. Individuals with BSCP may use coactivation strategy, mainly the anticipatory activation of postural muscle activity, during a task that requires a selective postural muscle activity to maintain stable posture.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Brazo / Parálisis Cerebral / Músculo Esquelético / Electromiografía / Equilibrio Postural Límite: Adolescent / Adult / Female / Humans / Male Idioma: En Revista: Hum Mov Sci Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Brazo / Parálisis Cerebral / Músculo Esquelético / Electromiografía / Equilibrio Postural Límite: Adolescent / Adult / Female / Humans / Male Idioma: En Revista: Hum Mov Sci Año: 2024 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Países Bajos