Muscle synergy structure and gait patterns in children with spastic cerebral palsy.
Dev Med Child Neurol
; 64(4): 462-468, 2022 04.
Article
em En
| MEDLINE
| ID: mdl-34614213
ABSTRACT
AIM:
To determine if muscle synergy structure (activations and weights) differs between gait patterns in children with spastic cerebral palsy (CP).METHOD:
In this cross-sectional study, we classified 188 children with unilateral (n=82) or bilateral (n=106) spastic CP (mean age 9y 5mo, SD 4y 3mo, range 3y 9mo-17y 7mo; 75 females; Gross Motor Function Classification System [GMFCS] level I 106, GMFCS level II 55, GMFCS level III 27) into a minor deviations (n=34), drop foot (n=16), genu recurvatum (n=26), apparent equinus (n=53), crouch (n=39), and jump gait pattern (n=20). Surface electromyography recordings from eight lower limb muscles of the most affected side were used to calculate synergies with weighted non-negative matrix factorization. We compared synergy activations and weights between the patterns.RESULTS:
Synergy structure was similar between gait patterns, although weights differed in the more impaired children (crouch and jump gait) when compared to the other patterns. Variability in synergy structure between participants was high.INTERPRETATION:
The similarity in synergy structure between gait patterns suggests a generic motor control strategy to compensate for the brain lesion. However, the differences in weights and high variability between participants indicate that this generic motor control strategy might be individualized and dependent on impairment level.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Paralisia Cerebral
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Child
/
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article