Cited by 23Cerebral Palsy and Movement DisordersMotor Control and AdaptationMuscle activation and electromyography studies

Deficits in task-specific modulation of anticipatory postural adjustments in individuals with spastic diplegic cerebral palsy

Tomita, Hidehito, Fukaya, Yoshiki, Ueda, Tomomi, Honma, Shota, Yamashita, Eriya, Yamamoto, Yoshiji, Mori, Etsuko, Shionoya, Katsuyoshi·2011·Journal of Neurophysiology

Abstract

We examined whether individuals with spastic diplegic cerebral palsy (SDCP) have the ability to utilize lower leg muscles in anticipatory postural adjustments (APAs) associated with voluntary arm movement while standing, as well as the ability to modulate APAs with changes in the degree of postural perturbation caused by arm movement. Seven individuals with spastic diplegia (SDCP group, 12–22 yr of age) and seven age- and sex-matched individuals without disability (control group) participated in this study. Participants flexed both shoulders and lifted a load under two different load conditions, during which electromyographic activities of focal and postural muscles were recorded. Although the timing of anticipatory activation of the erector spinae and medial hamstring (MH) muscles was similar in the two participant groups, that of the gastrocnemius (GcM) muscle was significantly later in the SDCP group than in the control group. An increase in anticipatory postural muscle activity with an increase in load was observed in MH and GcM in the control group but not in GcM in the SDCP group. The degree of modulation in MH was significantly smaller in the SDCP group than in the control group. An additional experiment confirmed that these differences in APAs between the two participant groups were unlikely to be attributable to their differences in initial standing posture before load lift. The present findings suggest that lower leg muscles play a minor role in APAs in individuals with spastic diplegia. In addition, it is likely that these individuals have difficulty modulating anticipatory postural muscle activity with changes in the degree of postural perturbation.

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Crossref · 10.1152/jn.00569.2010

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  • Children with CP show deficits in anticipatory postural adjustments, reactive postural adjustments, and sensory and musculoskeletal components of postural control compared with children with typical development.

    “To date, it is known that children with CP show deficits in anticipatory postural adjustments, 4 -9 and reactive postural adjustments, 10 -12 as well as sensory 4,13 and musculoskeletal components 14,15 of postural control, compared with children with typical development.”

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Authors
Tomita, H., Fukaya, Y., Ueda, T., Honma, S., Yamashita, E., Yamamoto, Y., Mori, E., & Shionoya, K.
Affiliations
  • Toyohashi SOZO University (JP)
  • Aichi Prefectural Hospital and Rehabilitation Center for Disabled Children, Dai-ni Aoitorigakuen, Okazaki, Japan
Corresponding author
Tomita, Hidehito
Venue
Journal of Neurophysiology
Published
2011-05
Volume
105
Issue
5
Pages
2157-2168
ISSN
  • 0022-3077 (ISSN-L)
  • 1522-1598
OpenAlex
W2323511290
Cited by
23
References
43
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2022: 2 · 2021: 1 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 5 · 2014: 2 · 2013: 3 · 2012: 1
FWCI
1.31
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurophysiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Cerebral Palsy and Movement Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Physical Sciences › Engineering › Biomedical Engineering › Muscle activation and electromyography studies
Keywords
spastic diplegia, anticipatory postural adjustments, postural control, lower leg muscle activity, gastrocnemius, medial hamstring, erector spinae, arm movement, postural perturbation, load lifting, electromyography
MeSH terms
Adolescent, Cerebral Palsy, Child, Electromyography, Postural Balance, Female, Humans, Male, Movement, Psychomotor Performance, Young Adult, Anticipation, Psychological

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