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Anteroposterior balance reactions in children with spastic cerebral palsy.
- Source :
- Developmental Medicine & Child Neurology; Jun2020, Vol. 62 Issue 6, p700-708, 9p
- Publication Year :
- 2020
-
Abstract
- <bold>Aim: </bold>To compare anterior and posterior standing balance reactions, as measured by single-stepping thresholds, in children with and without spastic cerebral palsy (CP).<bold>Method: </bold>Seventeen 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.<bold>Results: </bold>We 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.<bold>Interpretation: </bold>The 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.<bold>What This Paper Adds: </bold>Children 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00121622
- Volume :
- 62
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Developmental Medicine & Child Neurology
- Publication Type :
- Academic Journal
- Accession number :
- 143056482
- Full Text :
- https://doi.org/10.1111/dmcn.14500