title: Relation between unimanual capacities and bimanual performance in hemiplegic cerebral-palsied children: impact of synkinesis.
abstract: OBJECTIVE
  Analyze the link between unimanual capacities and bimanual performance in cerebral-palsied (CP) hemiplegic children, aged between 5 and 18 years old, studying specifically the impact of synkinesis.
  
  
  METHODS
  71 CP hemiplegic children (35 boys and 36 girls - with average age of 8 years and 6 months; MACS levels from I to III; GMFCS from I to IV) took part in a transversal study, assessed - Melbourne Test (MUUL) for unimanual capacities, and Assisting Hand Assessment (AHA) for bimanual performance - with a specific scale to analyze synkinesis during Box and Block test for affected and healthy hands, collecting synkinesis type, duration and intensity.
  
  
  RESULTS
  There is a strong correlation between unimanual capacities (MUUL) and bimanual performance (AHA) (r = 0.871). Neither age nor gender contribute to bimanual performance (AHA). Multiple linear regression shows that MUUL contributes to bimanual performance variance (AHA) by 70%. Synkinesis is partly correlated to capacities (MUUL) and accounts for 10% of the variance of the gap between capacities and bimanual performance.
  
  
  CONCLUSIONS
  A high relationship between unimanual capacities and bimanual performance is confirmed by this study; some authors demonstrated impact of sensory troubles, we demonstrate that synkinesis influences the use of unimanual capacities in bimanual performance.
authors.affiliation: Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge Française, 92, Rue Edmond Locard, 69322 Lyon Cedex 05, France.
authors.forename: E
authors.initials: E
authors.lastname: Chaleat-Valayer
authors.affiliation: Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge Française, 92, Rue Edmond Locard, 69322 Lyon Cedex 05, France. Electronic address: bard.rachel@orange.fr.
authors.forename: R
authors.initials: R
authors.lastname: Bard-Pondarre
authors.affiliation: Hospices Civils de Lyon, Pôle Information Médicale, Evaluation, Recherche, Unité d'Evaluation Médico-Economique, 162 Avenue Lacassagne, 69424 Lyon Cedex 03, France.
authors.forename: C
authors.initials: C
authors.lastname: Ganne
authors.affiliation: Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge Française, 92, Rue Edmond Locard, 69322 Lyon Cedex 05, France.
authors.forename: F
authors.initials: F
authors.lastname: Roumenoff
authors.affiliation: Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge Française, 92, Rue Edmond Locard, 69322 Lyon Cedex 05, France.
authors.forename: A
authors.initials: A
authors.lastname: Combey
authors.affiliation: Centre Médico-Chirurgical de Réadaptation des Massues - Croix-Rouge Française, 92, Rue Edmond Locard, 69322 Lyon Cedex 05, France.
authors.forename: J C
authors.initials: JC
authors.lastname: Bernard
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001921:Brain / Q000473:pathology; D002547:Cerebral Palsy / Q000150:complications / Q000473:pathology / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D007839:Functional Laterality; D006429:Hemiplegia / Q000150:complications / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009048:Motor Skills; D009460:Neurologic Examination; D009483:Neuropsychological Tests; D011597:Psychomotor Performance; D012737:Sex Factors; D046608:Synkinesis / Q000150:complications / Q000503:physiopathology*
keywords: Capacity; Hemiplegia; Performance; Synkinesis; Upper limb