Muscle activation characteristics of stance balance control in children with spastic cerebral palsy

Burtner, Patricia A.; Qualls, Clifford; Woollacott, Marjorie H.

doi:10.1016/s0966-6362(98)00032-0

Cited by 129 publications

(117 citation statements)

References 15 publications

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“…Many previous studies on CPAs to external perturbations (e.g., support surface translation) have revealed that a higher degree of antagonistic coactivation of ventral and dorsal postural muscles is a primary characteristic in individuals with SDCP (Burtner et al 1998;Nashner et al 1983;. In the present study, the percentages of trials with anticipatory antagonistic coactivation in the thigh and lower leg tended to be higher in the SDCP group than in the control group.…”

Section: Discussionsupporting

confidence: 50%

“…However, Burtner et al (1998) found that differences in some characteristics of postural muscle activities in CPAs while standing between children with SDCP and those without disability result from differences in initial postural alignment, i.e., crouch or upright. Thus the present findings, taken together with the findings of the previous studies (Burtner et al 1998;Tomita et al 2010Tomita et al , 2011, raise the possibility that initial postural state is not the primary cause of differences in dynamic stance postural control between individuals with SDCP and those without disability but influences, at least in part, their postural muscle activities to counteract internal or external perturbations.…”

Section: Discussionmentioning

confidence: 94%

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Deficits in anticipatory inhibition of postural muscle activity associated with load release while standing in individuals with spastic diplegic cerebral palsy

Tomita

Fukaya²,

Totsuka

et al. 2013

Journal of Neurophysiology

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Section: Discussionsupporting

confidence: 50%

Section: Discussionmentioning

confidence: 94%

Deficits in anticipatory inhibition of postural muscle activity associated with load release while standing in individuals with spastic diplegic cerebral palsy

Tomita

Fukaya²,

Totsuka

et al. 2013

Journal of Neurophysiology

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“…The increased demands on the muscle relative to its reduced overall capacity are reflected in reports of chronic fatigue in this population. In addition, several studies have documented an increased co-activation/co-contraction of agonist and antagonist muscles around the same joint in individuals with CP [3,12,13]. Small amounts of co-activation are normal; however, too much co-activation increases energy expenditure and as a result could lead to a faster rate of fatigue in both agonists and antagonists [12,14].…”

Section: Reports Of Fatigue In Cp: the Conflictmentioning

confidence: 99%

Fatigue in cerebral palsy: A critical review

Brunton

Rice

2012

Developmental Neurorehabilitation

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Objective: Fatigue contributes to the deterioration or cessation of walking ability in adults with cerebral palsy (CP). However, conflict exists as to its role. Studies involving functional tasks reported increased, and earlier onset of, fatigue in CP whereas laboratory studies have reported individuals with CP to be more fatigue resistant than their peers.Methods: A critical review of the literature related to fatigue in CP was conducted.Results: This review describes factors that contribute to the observed fatigue resistance in laboratory tasks and how a decreased force-production in CP can result in higher energy expenditure to perform the same amount of work as their peers. Conclusion:More research regarding the process of fatigue and recovery for individuals with CP is needed; specifically studies that focus on functional movements requiring the integration of the whole body, thereby stressing the neuromuscular system in a different way than previously explored.

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“…Because of the complexity of the musculoskeletal system, motor coordination during any strategy has a larger number of options of muscle activation. Consequently, children with cerebral palsy may favor one strategy over another or may adopt a unique biomechanical postural alignment to compensate for muscular weakness and motor deficits [5,6].…”

Section: Introductionmentioning

confidence: 99%

Fast Computational Analysis of Sway Area Using Center of Pressure Data in Normal Children and Children with Cerebral Palsy

Kim¹,

Ferdjallah²,

Harris³

2009

Am. J. Biomed. Sci.

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In this paper, we have developed an efficient method for real time computation of Center of Pressure (CoP) sway area using a fast search and sort based on a numerical approximation of the Green-Gauss method. In addition, we investigated the correlations among the velocity, acceleration, path length, sway area, and mean frequency of CoP signals during quiet standing in healthy children and in children with cerebral palsy. The Pearson correlation technique described the direction and strength of linear relationships among the CoP velocity, acceleration, and the standard metrics, such as CoP Root Mean Squared (RMS), CoP range, path length (PL), normalized path length (NPL), sway area (SA), normalized sway area (NSA), and mean frequency, respectively. Subjects were tested during eyes open and eyes closed trials to explore the significance of the visual input. Both RMS of CoP velocity and acceleration described strong correlations with NPL and NSA in the eye open test (r ≥ 0.728) and in the eye closed test (r ≥ 0.919) of normal children. Similar results were also observed in children with cerebral palsy in both eye tests. The correlation between the CoP velocity and NPL indicated that the CoP velocity metric can be considered as an indicator of NPL. Thus, the CoP velocity and CoP acceleration might be very useful as valid metrics because the real time feedback from online measurements in balance control assessment is often necessary. The described fast computation of the sway area by using CoP velocity and CoP acceleration provided valid metrics for CoP correlation analysis.

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Muscle activation characteristics of stance balance control in children with spastic cerebral palsy

Cited by 129 publications

References 15 publications

Deficits in anticipatory inhibition of postural muscle activity associated with load release while standing in individuals with spastic diplegic cerebral palsy

Deficits in anticipatory inhibition of postural muscle activity associated with load release while standing in individuals with spastic diplegic cerebral palsy

Fatigue in cerebral palsy: A critical review

Fast Computational Analysis of Sway Area Using Center of Pressure Data in Normal Children and Children with Cerebral Palsy

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