ArticleJournal of pain research2017
Optimal control of reaching is disturbed in complex regional pain syndrome: a single-case study.
Article in Journal of pain research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 12 citations in OpenAlex.
- Cognitive-Evaluative Dimension of Pain in Neuropathic Pain Relapse in Sciatica: A Case Report.Medicina (Kaunas, Lithuania) · 2021Article
- Kinematic changes in goal-directed movements in a fear-conditioning paradigm.Scientific reports · 2021Article
- Diagnosis and therapy of functional tremor a systematic review illustrated by a case report.Neurological research and practice · 2020Review
- Neural Mechanism of Altered Limb Perceptions Caused by Temporal Sensorimotor Incongruence.Frontiers in behavioral neuroscience · 2018Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveDisturbance of goal-directed motor control may cause or exacerbate pathological pain in patients with complex regional pain syndrome (CRPS). We conducted a single-case study about motor control involved in reaching with a patient with CRPS in an upper limb.
methodsUsing a three-dimensional measurement system, we recorded reaching movement trajectories of the intact and affected hand before and after pain alleviation by therapeutic nerve blockade. We assessed degrees of tremor in the acceleration phase (from start until maximum peak velocity) and the deceleration phase (from maximum peak velocity until goal). To quantify the smoothness of reaching movements, we analyzed the curves of the trajectories during the initial movement phase (from start and maximum peak acceleration).
resultsThe results showed that the tremor of the affected hand was greater than that of the intact hand during the deceleration phase, both before and after pain alleviation. Reaching trajectories of the intact hand smoothly traced curves convexed toward the intact side, while those of the affected hand represented unnaturally rectilinear functions associated with the loss of smooth movements. Further, these unnatural trajectories partially recovered after pain alleviation.
conclusionDisturbance of sensorimotor integration and pain-related fear might affect goal-directed motor control in CRPS patients.
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