ArticleJournal of neurophysiology2017
Contribution of sensory feedback to plantar flexor muscle activation during push-off in adults with cerebral palsy.
Article in Journal of neurophysiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- Observational
- The effect of cathodal transspinal direct current stimulation on tibialis anterior stretch reflex components in humans.Experimental brain research · 2022Article
- Somatosensory deficits and neural correlates in cerebral palsy: a scoping review.Developmental medicine and child neurology · 2021Article
- Increased Ankle Plantar Flexor Stiffness Is Associated With Reduced Mechanical Response to Stretch in Adults With CP.Frontiers in bioengineering and biotechnology · 2021Article
- Motor beta cortical oscillations are related with the gait kinematics of youth with cerebral palsy.Annals of clinical and translational neurology · 2020Article
- Spastic movement disorder: should we forget hyperexcitable stretch reflexes and start talking about inappropriate prediction of sensory consequences of movement?Experimental brain research · 2020Review
- Animal models of developmental motor disorders: parallels to human motor dysfunction in cerebral palsy.Journal of neurophysiology · 2019Article
- Contribution of corticospinal drive to ankle plantar flexor muscle activation during gait in adults with cerebral palsy.Experimental brain research · 2019Article
- Feedforward neural control of toe walking in humans.The Journal of physiology · 2018Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Exaggerated sensory activity has been assumed to contribute to functional impairment following lesion of the central motor pathway. However, recent studies have suggested that sensory contribution to muscle activity during gait is reduced in stroke patients and children with cerebral palsy (CP). We investigated whether this also occurs in CP adults and whether daily treadmill training is accompanied by alterations in sensory contribution to muscle activity. Seventeen adults with CP and 12 uninjured individuals participated. The participants walked on a treadmill while a robotized ankle-foot orthosis applied unload perturbations at the ankle, thereby removing sensory feedback naturally activated during push-off. Reduction of electromyographic (EMG) activity in the soleus muscle caused by unloads was compared and related to kinematics and ankle joint stiffness measurements. Similar measures were obtained after 6 wk of gait training. We found that sensory contribution to soleus EMG activation was reduced in CP adults compared with uninjured adults. The lowest contribution of sensory feedback was found in participants with lowest maximal gait speed. This was related to increased ankle plantar flexor stiffness. Six weeks of gait training did not alter the contribution of sensory feedback. We conclude that exaggerated sensory activity is unlikely to contribute to impaired gait in CP adults, because sensory contribution to muscle activity during gait was reduced compared with in uninjured individuals. Increased passive stiffness around the ankle joint is likely to diminish sensory feedback during gait so that a larger part of plantar flexor muscle activity must be generated by descending motor commands.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.