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Spasticity in adults with cerebral palsy and multiple sclerosis measured by objective clinically applicable technique
Spasticity occurs frequently following lesions of central motor pathways in neurological disorders such as stroke (Malhotra et al., 2009; Sommerfeld et al., 2012), spinal cord injury (Sheean, 2002), multiple sclerosis (MS) (Sinkjaer et al., 1993; Mayer, 1997) and cerebral palsy (CP) (Gracies, 2005). Spasticity is most commonly defined as a velocity dependent increase in muscle tone with exaggeration of the stretch reflex circuitry (Lance, 1980). However, in the clinic a somewhat broader understanding of spasticity, which also includes sustained muscle contractions such as spasms and spastic dystonia as well as alterations ...
Source: Clinical Neurophysiology - July 15, 2018 Category: Neuroscience Authors: Tomofumi Yamaguchi, Tue Hvass Petersen, Henrik Kirk, Christian Forman, Christian Svane, Mathilde Kofoed-Hansen, Finn Boesen, Jakob Lorentzen Source Type: research

Interhemispheric motor interactions in hemiparetic children with perinatal stroke: Clinical correlates and effects of neuromodulation therapy
Perinatal ischemic stroke (PS) is the occlusion of arteries or veins that results in cerebral damage between 20 weeks gestation and 28 days of life (Raju, 2007; Nelson and Lynch, 2004). PS is common, occurring in>1:3000 live births, and accounts for most hemiparetic cerebral palsy (CP) (Kirton and DeVeber, 2013). Children with PS-induced hemiparetic CP typically manifest motor asymmetry and early hand preference in the first 4-6 months of life (Kirton et al., 2010b). How the motor system develops following such early unilateral brain injury is increasingly defined by animal (Martin et al., 2007) and human (Eyre, 2007; Staudt, 2007) studies.
Source: Clinical Neurophysiology - November 25, 2017 Category: Neuroscience Authors: Derek Eng, Ephrem Zewdie, Patrick Ciechanski, Omar Damji, Adam Kirton Source Type: research

P 68 Novel control concepts and motor re-learning strategy in neurorehabilitation – practically-oriented approach
Persons suffering from functional impairment, due to cerebral palsy, stroke, or Parkinson ’s, often have not reached their full potential for recovery which often is a reason for injures and loss of life due to fall. Motor skill learning and retention of motor skills can be enhanced if a patient assumes control over practice conditions, e.g. timing of exercise instructions and feedback . In our study, we follow a novel conceptual framework (Despotova and Kiriazov, 2015) for optimal control learning of goal-directed motion tasks, like reaching, standing up and walking.
Source: Clinical Neurophysiology - September 8, 2017 Category: Neuroscience Authors: D. Despotova, P. Kiriazov Tags: Poster Source Type: research

Changes in diffusion tensor tractographic findings associated with constraint-induced movement therapy in young children with cerebral palsy
Constraint-induced movement therapy (CIMT) involves the application of constraint applied to the unimpaired upper limb coupled with intensive training of unimanual skills in the hemiplegic arm (Hoare et al., 2007). CIMT has been studied extensively and found to be effective in the treatment of adult hemiparetic stroke (Sirtori et al., 2009). Several randomized clinical trials performed on children with cerebral palsy (CP) also demonstrated immediate gain in the frequency of use and improved movement efficacy of the impaired upper limb (Deppe et al., 2013; Hoare et al., 2007; Rostami and Malamiri, 2012).
Source: Clinical Neurophysiology - March 20, 2014 Category: Neuroscience Authors: Jeong-Yi Kwon, Won Hyuk Chang, Hyun Jung Chang, Sook-Hee Yi, Min-Young Kim, Eun-Hye Kim, Yun-Hee Kim Source Type: research

P 168. TMS neurophysiology and interventional rTMS in children with perinatal stroke: Safety and tolerability in the PLASTIC CHAMPS trial
Introduction/Question: Perinatal stroke causes hemiplegic cerebral palsy and lifelong disability. TMS can define neurophysiology and central therapeutic targets while rTMS carries therapeutic potential in adult stroke but have not been applied to the more plastic developing brain. Ipsilateral projections from the unlesioned hemisphere to the affected hand are prominent in this population and the effects of non-lesioned inhibitory rTMS are unknown.Methods: PLASTIC CHAMPS is a randomized, blinded, factorial clinical trial of rTMS and constraint therapy (CIMT) to enhance upper extremity function in children (6–18years) with...
Source: Clinical Neurophysiology - September 19, 2013 Category: Neuroscience Authors: T. Rajapakse, O. Kirton, J. Roe, A. Kirton Tags: Society Proceedings Source Type: research

P 174. Effects of paired associative stimulation on developmental motor plasticity in children
Introduction: Transcranial magnetic stimulation (TMS) offers increasingly sophisticated means of assessing neurophysiology and neuroplasticity mechanisms but applications in children have been limited. Paired associative stimulation (PAS) is an advanced TMS method that pairs peripheral sensory stimulation with TMS primary motor cortex (M1) stimulation. PAS induces rapid, reversible and topographically specific increases in adult motor cortex excitability consistent with NMDAR-dependent long-term potentiation. PAS has not been studied in the more plastic brains of children.Objectives: Our aim wasto define the developmental ...
Source: Clinical Neurophysiology - September 19, 2013 Category: Neuroscience Authors: O. Damji, J. Roe, S. Shinde, O. Kotsovsky, A. Kirton Tags: Society Proceedings Source Type: research

P 168. TMS neurophysiology and interventional rTMS in children with perinatal stroke: Safety and tolerability in the PLASTIC CHAMPS trial
Introduction/Question: Perinatal stroke causes hemiplegic cerebral palsy and lifelong disability. TMS can define neurophysiology and central therapeutic targets while rTMS carries therapeutic potential in adult stroke but have not been applied to the more plastic developing brain. Ipsilateral projections from the unlesioned hemisphere to the affected hand are prominent in this population and the effects of non-lesioned inhibitory rTMS are unknown.Methods: PLASTIC CHAMPS is a randomized, blinded, factorial clinical trial of rTMS and constraint therapy (CIMT) to enhance upper extremity function in children (6–18years) with...
Source: Clinical Neurophysiology - September 1, 2013 Category: Neuroscience Authors: T. Rajapakse, O. Kirton, J. Roe, A. Kirton Tags: Society Proceedings Source Type: research

P 174. Effects of paired associative stimulation on developmental motor plasticity in children
Introduction: Transcranial magnetic stimulation (TMS) offers increasingly sophisticated means of assessing neurophysiology and neuroplasticity mechanisms but applications in children have been limited. Paired associative stimulation (PAS) is an advanced TMS method that pairs peripheral sensory stimulation with TMS primary motor cortex (M1) stimulation. PAS induces rapid, reversible and topographically specific increases in adult motor cortex excitability consistent with NMDAR-dependent long-term potentiation. PAS has not been studied in the more plastic brains of children.Objectives: Our aim wasto define the developmental ...
Source: Clinical Neurophysiology - September 1, 2013 Category: Neuroscience Authors: O. Damji, J. Roe, S. Shinde, O. Kotsovsky, A. Kirton Tags: Society Proceedings Source Type: research