title: Tracking of Gross Motor Coordination From Childhood Into Adolescence.
abstract: OBJECTIVE
  The purpose of this study was to analyze tracking and stability of motor coordination in children from age 6 years to ages 9 and 13 years.
  
  
  METHODS
  Data were from the Copenhagen School Child Intervention Study. Motor coordination (MC) was measured using the körperkoordinationstest für Kinder (KTK) test. The crude performance score on every item was converted into a standardized "score" based on the original German reference study, which was used to generate a total standardized motor coordination (MQ) score. The MQ scores, which represented children's level of gross MC, were classified as low (MQ score < 85), normal (MQ score = 85-115), or high (MQ score>115). Pearson correlation was used to calculate the tracking coefficients of each KTK element and MQ score, and weighted kappa was used to analyze maintenance in MC classification groups. Mixed-effects logistic regression analyses were performed to examine the odds of remaining in the low MC group over time based on body mass index (BMI), weight, and height tertiles.
  
  
  RESULTS
  Tracking coefficients among the MQ score and each KTK element at different ages were moderate (r>.35). Children in the highest BMI and weight tertiles had a 5.44 and 5.15 times greater chance to be in the lower MC classification group during the 7-year follow-up, respectively, in comparison with children in their lowest tertiles.
  
  
  CONCLUSIONS
  MC tracked moderately through childhood to early adolescence. Because heavier children had a greater chance to be in the lower MC group at older ages, intervention may be useful at earlier ages for those with lower MC and disadvantageous weight status.
authors.affiliation: a CAPES Foundation, Ministry of Education of Brazil.|b University of Southern Denmark.
authors.forename: Rodrigo Antunes
authors.initials: RA
authors.lastname: Lima
authors.affiliation: b University of Southern Denmark.
authors.forename: Anna
authors.initials: A
authors.lastname: Bugge
authors.affiliation: c Michigan State University.
authors.forename: Karin Allor
authors.initials: KA
authors.lastname: Pfeiffer
authors.affiliation: d Sogn og Fjordane University College.|e Norwegian School of Sport Sciences.
authors.forename: Lars Bo
authors.initials: LB
authors.lastname: Andersen
mesh_terms: D000293:Adolescent; D000367:Age Factors; D015992:Body Mass Index; D001835:Body Weight; D002648:Child; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009048:Motor Skills
keywords: Fundamental motor skills; longitudinal; motor development; physical activity