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The relation betwee...
The relation between mirror movements and non-use of the affected hand in children with unilateral cerebral palsy
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- Zielinski, Ingar M. (author)
- Behavioural Science Institute, Nijmegen, the Netherlands
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- Green, Dido (author)
- Jönköping University,HHJ, Avdelningen för rehabilitering,HHJ. CHILD,Department of Sport and Health Science, Oxford Brookes University, Oxford, United Kingdom
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- Rudisch, Julian (author)
- Department of Sport and Health Science, Oxford Brookes University, Oxford, United Kingdom
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- Jongsma, Marijtje L. A. (author)
- Behavioural Science Institute, Nijmegen, the Netherlands
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- Aarts, Pauline B. M. (author)
- Department of Pediatric Rehabilitation, Sint Maartenskliniek, Nijmegen, the Netherlands
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- Steenbergen, Bert (author)
- Behavioural Science Institute, Nijmegen, the Netherlands
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(creator_code:org_t)
- 2016-07-16
- 2017
- English.
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In: Developmental Medicine & Child Neurology. - : John Wiley & Sons. - 0012-1622 .- 1469-8749. ; 59:2, s. 152-159
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Abstract
Subject headings
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- Aim:In children with unilateral cerebral palsy (CP), it is widely believed that mirror movements contribute to non-use of the affected hand despite preserved capacity, a phenomenon referred to as developmental disregard. We aimed to test whether mirror movements are related to developmental disregard, and to clarify the relation between mirror movements and bimanual function.Method:A repetitive squeezing task simultaneously measuring both hands' grip-forces was developed to assess mirror movements by using maximum cross-correlation coefficient (CCCmax) as well as strength measures (MMstrength). Developmental disregard, bimanual performance, and capacity were assessed using a validated video-observation method. Twenty-one children with unilateral CP participated (Median age 10y 7mo, interquartile range [IQR] 10y 1mo–12y 9mo). Outcome measures of mirror movements were correlated to developmental disregard, bimanual performance, and capacity scores using Spearman's correlations (significance level: α<0.05).Results:Mirror movements were not related to developmental disregard. However, enhanced mirror movements in the less-affected hand were related to reduced performance (CCCmax: ρ=−0.526, p=0.007; MMstrength: ρ=−0.750, p<0.001) and capacity (CCCmax: ρ=−0.410, p=0.033; MMstrength: ρ=−0.679, p<0.001). These relations were only moderate (performance:MMstrength: ρ=−0.504, p=0.010), low (capacity: MMstrength: ρ=−0.470, p=0.016) or absent for mirror movements in the affected hand. Additionally, seven children showed stronger movements in their less-affected hands when actually being asked to move their affected hand.Interpretation:These findings show no relation between mirror movements and developmental disregard, but support an association between mirror movements and bimanual function.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Keyword
- Article
- cerebral palsy
- child
- childhood disease
- clinical article
- female
- hand movement
- human
- male
- mirror movement
- outcome assessment
- physical performance
- pinch strength
- priority journal
- school child
- unilateral cerebral palsy
- adolescent
- complication
- hand
- hand strength
- hemispheric dominance
- Movement Disorders
- nonparametric test
- pathology
- pathophysiology
- physiology
- Psychomotor Disorders
- Functional Laterality
- Humans
- Statistics
- Nonparametric
Publication and Content Type
- ref (subject category)
- art (subject category)
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