title: Reliability for running tests for measuring agility and anaerobic muscle power in children and adolescents with cerebral palsy.
abstract: OBJECTIVE
  We investigated reliability, construct validity, and feasibility of two sprint tests for children with cerebral palsy (CP).
  
  
  METHODS
  Twenty-six children with CP participated (7-18 years of age; Gross Motor Function Classification System [GMFCS] level I or II). On different occasions, the 10 x 5-Meter Sprint Test and the Muscle Power Sprint Test were scored by different assessors.
  
  
  RESULTS
  Excellent interobserver reliability (intraclass correlation [ICC] = 1.0 and ICC >or= 0.97) and test-retest reliability (ICC = 0.97 and ICC >or= 0.97) were obtained. Scores differed significantly on both sprint tests for children classified at GMFCS level I and level II. Mean scores for feasibility ranged from 8.8 to 9.2 on a 10-cm visual analog scale (10 = the best).
  
  
  CONCLUSIONS
  Both exercise tests are reliable and have good feasibility for children and adolescents with CP (GMFCS level I or II). Construct validity is supported for both sprint tests in children classified at GMFCS level I and level II.
authors.affiliation: Rehabilitation Centre De Hoogstraat, Utrecht, The Netherlands. o.verschuren@dehoogstraat.nl
authors.forename: Olaf
authors.initials: O
authors.lastname: Verschuren
authors.forename: Tim
authors.initials: T
authors.lastname: Takken
authors.forename: Marjolijn
authors.initials: M
authors.lastname: Ketelaar
authors.forename: Jan Willem
authors.initials: JW
authors.lastname: Gorter
authors.forename: Paul J M
authors.initials: PJ
authors.lastname: Helders
mesh_terms: D000293:Adolescent; D002547:Cerebral Palsy / Q000503:physiopathology*; D002648:Child; D004185:Disability Evaluation; D005080:Exercise Test / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009048:Motor Skills; D018482:Muscle, Skeletal / Q000503:physiopathology*; D010809:Physical Fitness / Q000502:physiology; D026741:Physical Therapy Modalities; D015203:Reproducibility of Results; D012420:Running