論文

国際誌
2024年3月6日

Relative contribution of sensory and motor deficits on grip force control in patients with chronic stroke.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
  • Ryo Akaguchi
  • ,
  • Yusaku Takamura
  • ,
  • Hiroyuki Okuno
  • ,
  • Shu Morioka
  • ,
  • Noritaka Kawashima

161
開始ページ
231
終了ページ
241
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.clinph.2024.02.033

OBJECTIVE: This study aimed to characterize grasping behavior in static (weight-dependent modulation and stability of control) and dynamic (predictive control) aspects specifically focusing on the relative contribution of sensory and motor deficits to grip force control in patients with chronic stroke. METHODS: Twenty-four chronic stroke patients performed three manipulative tasks: five trials of 5-s grasp-lift-holding, 30-s static holding, and vertical dynamic/cyclic oscillation of holding the object. RESULTS: Exerted static grip force on the paretic side exhibited statistically greater than that on the non-paretic side. Spearman's rank correlation coefficient revealed that the contribution to static grip force control was larger in sensory deficits than in motor deficits. In addition, the sensory deficit is related to the reduced coupling between grip force and load force, suggesting difficulty in predictive control due to the absence of sensory feedback. CONCLUSIONS: Given that grip force control involves predictive feedforward and online feedback control, the evaluation of grip force might be an important and feasible evaluation manner for the assessment of sensorimotor control in patients post-stroke. SIGNIFICANCE: Detailed evaluation of grip force control would help to understand the mechanisms underlying hand dysfunction in stroke patients.

リンク情報
DOI
https://doi.org/10.1016/j.clinph.2024.02.033
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/38522269
ID情報
  • DOI : 10.1016/j.clinph.2024.02.033
  • PubMed ID : 38522269

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