title: Performance on Functional Strength Measurement and Muscle Power Sprint Test confirm poor anaerobic capacity in children with Developmental Coordination Disorder.
abstract: BACKGROUND
  There is little and conflicting information about anaerobic performance and functional strength in children with Developmental Coordination Disorder (DCD).
  
  
  OBJECTIVE
  To investigate anaerobic capacity and functional strength in children with a clinical diagnosis of DCD (clin-DCD) and if differences were larger in older (age 7-10 years) compared to younger children (age 4-6 years). Furthermore to determine the percentage of children with clin-DCD that scored <15th percentile on the norm-referenced Functional Strength Measurement.
  
  
  METHODS
  A clin-DCD group (36 boys, 11 girls, mean age: 7y 1mo, SD=2y 1mo) and a typically developing group (TD) (57 boys, 53 girls, mean age: 7y 5mo, SD=1y 10mo) were compared on Muscle Power Sprint Test (MPST) and Functional Strength Measurement (FSM).
  
  
  RESULTS
  Children with clin-DCD performed poorer on the MPST and FSM, especially on the muscle endurance items of the FSM. The differences were larger in the older children compared to the younger on the cluster muscle endurance and the FSM total score. Over 50% of clin-DCD group scored <15th percentile on the FSM.
  
  
  CONCLUSIONS
  Differences between children with clin-DCD and TD children are even more pronounced in the older children, especially when tested on items requiring fast repetitive movements.
authors.affiliation: Avansplus, University for Professionals, Breda, The Netherlands. Electronic address: wendyverhoef@live.nl.
authors.forename: Wendy F M
authors.initials: WFM
authors.lastname: Aertssen
authors.affiliation: Department of Health and Rehabilitation Sciences, Division of Physiotherapy, Faculty of Health Sciences, University of Cape Town, South Africa.
authors.forename: Gillian D
authors.initials: GD
authors.lastname: Ferguson
authors.affiliation: Department of Health and Rehabilitation Sciences, Division of Physiotherapy, Faculty of Health Sciences, University of Cape Town, South Africa.
authors.forename: Bouwien C M
authors.initials: BCM
authors.lastname: Smits-Engelsman
mesh_terms: D000367:Age Factors; D000693:Anaerobiosis; D002648:Child; D002675:Child, Preschool; D005080:Exercise Test; D017079:Exercise Tolerance; D005260:Female; D006801:Humans; D008297:Male; D019957:Motor Skills Disorders / Q000503:physiopathology*; D053580:Muscle Strength; D010807:Physical Endurance; D010809:Physical Fitness
keywords: Anaerobic capacity; Children; DCD; Functional strength measurement; MPST