Relative independence of upper limb position sense and reaching in children with hemiparetic perinatal stroke

Studies using clinical measures have suggested that proprioceptive dysfunction is related to motor impairment of the upper extremity following adult stroke. We used robotic technology and clinical measures to assess the relationship between position sense and reaching with the hemiparetic upper limb...

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Bibliographic Details
Published in:Journal of neuroengineering and rehabilitation 2021-05, Vol.18 (1), p.80-80, Article 80
Main Authors: Kuczynski, Andrea M, Kirton, Adam, Semrau, Jennifer A, Dukelow, Sean P
Format: Article
Language:English
Subjects:
Arm
Cerebral palsy
Children
Contraction
Diagnosis
Extremities, Upper
Fingers & toes
Hemiplegia
Impairment
Ischemia
Localization
Magnetic resonance imaging
Matching
Maxima
Medical examination
Motor control
Motor task performance
Movement disorders
Muscle strength
Paralysis
Parameters
Pediatric research
Perinatal stroke
Physiological aspects
Position measurement
Position sense
Position sensing
Posture
Proprioception
Reaching
Reaction time
Reaction time task
Rehabilitation
Robotics
Robots
Spasticity
Stroke
Stroke patients
Technology
Therapists
Wrist
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Summary:Studies using clinical measures have suggested that proprioceptive dysfunction is related to motor impairment of the upper extremity following adult stroke. We used robotic technology and clinical measures to assess the relationship between position sense and reaching with the hemiparetic upper limb in children with perinatal stroke. Prospective term-born children with magnetic resonance imaging-confirmed perinatal ischemic stroke and upper extremity deficits were recruited from a population-based cohort. Neurotypical controls were recruited from the community. Participants completed two tasks in the Kinarm robot: arm position-matching (three parameters: variability [Var ], contraction/expansion [Area ], systematic spatial shift [Shift ]) and visually guided reaching (five parameters: posture speed [PS], reaction time [RT], initial direction error [IDE], speed maxima count [SMC], movement time [MT]). Additional clinical assessments of sensory (thumb localization test) and motor impairment (Assisting Hand Assessment, Chedoke-McMaster Stroke Assessment) were completed and compared to robotic measures. Forty-eight children with stroke (26 arterial, 22 venous, mean age: 12.0 ± 4.0 years) and 145 controls (mean age: 12.8 ± 3.9 years) completed both tasks. Position-matching performance in children with stroke did not correlate with performance on the visually guided reaching task. Robotic sensory and motor measures correlated with only some clinical tests. For example, AHA scores correlated with reaction time (R = - 0.61, p 
ISSN:1743-0003
1743-0003
DOI:10.1186/s12984-021-00869-5