Dataset Information

Identification of gait events in children with spastic cerebral palsy: comparison between the force plate and algorithms.

ABSTRACT: OBJECTIVE:To compare the gait event identification of five algorithms recommended in the literature with those provided by force plate (gold standard) in children with unilateral or bilateral spastic cerebral palsy (SCP). METHODS:This was a cross-sectional study of the gait of three girls and four boys with a mean age of 8.6±4.7 years. Four children had unilateral SCP with an equinus gait pattern, and the remaining three children exhibited bilateral SCP with a slide/drag gait pattern. Kinematic and kinetic gait data were collected during barefoot walking at a comfortable speed. From a total of 202 steps, the detection of 202 foot-strike (FS) and 194 toe-off (TO) events by each algorithm was compared with the detection of these same events by the force plate. The error between the events detected by the algorithms and those detected by the force plate was determined in milliseconds. Repeated measures ANOVA was used to compare the errors among the algorithms. RESULTS:The algorithm reported by Ghoussayni et al. showed the best performance in all situations, except for the identification of FS events on the unaffected side in children with unilateral SCP. For these events, the algorithms reported by Desailly et al. and Zeni et al. showed the best performance. CONCLUSION:Ghoussayni et al.'s algorithm can be used to detect gait events in children with SCP when a force plate is not available.

SUBMITTER: Goncalves RV

PROVIDER: S-EPMC7564018 | biostudies-literature | 2020 Sep - Oct

REPOSITORIES: biostudies-literature

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Identification of gait events in children with spastic cerebral palsy: comparison between the force plate and algorithms.

Gonçalves Rejane Vale RV Fonseca Sérgio Teixeira ST Araújo Priscila Albuquerque PA Araújo Vanessa Lara VL Barboza Tais Martins TM Martins Gabriela Andrade GA Mancini Marisa Cotta MC

Brazilian journal of physical therapy 20190612 5

<h4>Objective</h4>To compare the gait event identification of five algorithms recommended in the literature with those provided by force plate (gold standard) in children with unilateral or bilateral spastic cerebral palsy (SCP).<h4>Methods</h4>This was a cross-sectional study of the gait of three girls and four boys with a mean age of 8.6±4.7 years. Four children had unilateral SCP with an equinus gait pattern, and the remaining three children exhibited bilateral SCP with a slide/drag gait patt ...[more]

PMID: 31208861

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Project description:The interaction between brain damage and motor function is not yet fully understood in children with spastic cerebral palsy (CP). Therefore, a semi-quantitative MRI (sqMRI) scale was used to explore whether identified brain lesions related to functional abilities and gait pathology in this population. A retrospective cohort of ambulatory children with spastic CP was selected [N = 104; 52 bilateral (bCP) and 52 unilateral (uCP)]. Extent and location-specific scores were defined according to the sqMRI scale guidelines. The gross motor function classification system (GMFCS), the gait profile score (GPS), GPSs per motion plane, gait variable scores (GVS) and multiple-joint (MJ) gait patterns were related to brain lesion scores. In all groups, the global total brain scores correlated to the GPS (total: r s = 0.404, p ? 0.001; bCP: r s = 0.335, p ? 0.05; uCP: r s = 0.493, p ? 0.001). The global total hemispheric scores correlated to the GMFCS (total: r s = 0.392, p ? 0.001; bCP: r s = 0.316, p ? 0.05; uCP: r s = 0.331, p ? 0.05). The laterality scores of the hemispheres in the total group correlated negatively to the GMFCS level (r s = -0.523, p ? 0.001) and the GVS-knee sagittal (r s = -0.311, p ? 0.01). Lesion location, for the total group demonstrated positive correlations between parietal lobe involvement and the GPS (r s = 0.321, p ? 0.001) and between periventricular layer damage and the GMFCS (r s = 0.348, p ? 0.001). Involvement of the anterior part of the corpus callosum (CC) was associated with the GVS-hip sagittal in all groups (total: r pb = 0.495, p ? 0.001; bCP: r pb = 0.357, p ? 0.05; uCP: r pb = 0.641, p ? 0.001). The global total hemispheric and laterality of the hemispheres scores differentiated between the minor and both the extension (p ? 0.001 and p ? 0.001) and flexion (p = 0.016 and p = 0.013, respectively) MJ patterns in the total group. Maximal periventricular involvement and CC intactness were associated with extension patterns (p ? 0.05 and p ? 0.001, respectively). Current findings demonstrated relationships between brain structure and motor function as well as pathological gait, in this cohort of children with CP. These results might facilitate the timely identification of gait pathology and, ultimately, guide individualized treatment planning of gait impairments in children with CP.

Project description:AimTo compare anterior and posterior standing balance reactions, as measured by single-stepping thresholds, in children with and without spastic cerebral palsy (CP).MethodSeventeen ambulatory children with spastic CP (eight males, nine females) and 28 typically developing children (13 males, 15 females; age range 5-12y, mean [SD] 9y 2mo [2y 3mo]), were included in this cross-sectional, observational study. Balance reaction skill was quantified as anterior and posterior single-stepping thresholds, or the treadmill-induced perturbations that consistently elicited a step in that direction. In order to understand the underlying mechanisms of between-group differences in stepping thresholds, dynamic stability was quantified using the minimum margin of stability. Ankle muscle activation latency, magnitude, and co-contraction were assessed with surface electromyography.ResultsWe observed an age and group interaction for anterior thresholds (p=0.001, partial η2 =0.24). At older (≈11y; p<0.001, partial η2 =0.48), but not younger (≈7y; p=0.33, partial η2 =0.02) ages, typically developing children had larger anterior thresholds than those with CP. In response to near-threshold anterior perturbations, older typically developing children recovered from more instability than their peers with CP (p=0.004, partial η2 =0.18). Older children had no between-group differences in ankle muscle activity. No between-group differences were observed in posterior thresholds.InterpretationThe effects of CP on balance reactions are age- and direction-specific. Older typically developing children are more able or willing to withhold a step when unstable.What this paper addsChildren with spastic cerebral palsy have age- and direction-specific balance-reaction impairments. Lower anterior stepping thresholds were observed in older, but not younger children. Older typically developing children withheld a forward step at higher levels of instability. No between-group differences were seen in posterior stepping thresholds.

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Dataset Information

Identification of gait events in children with spastic cerebral palsy: comparison between the force plate and algorithms.

Publications

Identification of gait events in children with spastic cerebral palsy: comparison between the force plate and algorithms.

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