title: Sensitivity and specificity of different measures of adiposity to distinguish between low/high motor coordination.
abstract: OBJECTIVE
  This study aimed to determine the ability of different measures of adiposity to discriminate between low/high motor coordination and to evaluate the relationship between different measures of adiposity and motor coordination.
  
  
  METHODS
  This study included 596 elementary school children aged 9 to 12 years (218 females - 47.1%). Weight, height, and waist circumference were objectively measured by standardized protocols. Body fat percentage was estimated by bioelectric impedance. Body mass index and waist-to-height ratio were computed. Motor coordination was assessed by the Körperkoordination Test für Kinder. Cardiorespiratory fitness was predicted by a maximal multistage 20 m shuttle-run test of the Fitnessgram Test Battery. A questionnaire was used to assess the maternal educational level.
  
  
  RESULTS
  The receiver operating characteristic performance of body fat percentage in females and waist circumference in males presented a slightly better discriminatory accuracy than body mass index, waist circumference and waist-to-height ratio in predicting low motor coordination. After adjustments, logistic regression analyses showed that body mass index (β=2.155; 95% CI: 1.164-3.992; p=0.015 for girls; β=3.255; 95% CI: 1.740-6.088; p<0.001 for males), waist circumference (β=2.489; 95% CI: 1.242-4.988; p=0.010 for girls; β=3.296; 95% CI: 1.784-6.090; p<0.001 for males), body fat percentage (β=2.395; 95% CI: 1.234-4.646; p=0.010 for girls; β=2.603; 95% CI: 1.462-4.634; p<0.001 for males) and waist-to-height ratio (β=3.840; 95% CI: 2.025-7.283; p<0.001 for males) were positively and significantly associated with motor coordination in both sexes, with the exception of waist-to-height ratio in girls (β=1.343; 95% CI: 0.713-2.528; p=0.381).
  
  
  CONCLUSIONS
  Body fat percentage and waist circumference showed a slightly better discriminatory accuracy in predicting low motor coordination for females and for males, respectively.
authors.affiliation: Research Centre for Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, Universidade do Porto (UP), Porto, Portugal; Research Centre on Child Studies (CIEC), Institute of Education, Universidade do Minho, Braga, Portugal. Electronic address: luis.iec.um@hotmail.com.
authors.forename: Luís
authors.initials: L
authors.lastname: Lopes
authors.affiliation: Research Centre for Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, Universidade do Porto (UP), Porto, Portugal; Instituto Universitário da Maia, Maia, Portugal.
authors.forename: Rute
authors.initials: R
authors.lastname: Santos
authors.affiliation: Research Centre for Physical Activity, Health and Leisure (CIAFEL), Faculty of Sports, Universidade do Porto (UP), Porto, Portugal.
authors.forename: Carla
authors.initials: C
authors.lastname: Moreira
authors.affiliation: Research Centre on Child Studies (CIEC), Institute of Education, Universidade do Minho, Braga, Portugal.
authors.forename: Beatriz
authors.initials: B
authors.lastname: Pereira
authors.affiliation: Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), Department of Sports Science of Instituto Politécnico de Bragança, Bragança, Portugal.
authors.forename: Vítor Pires
authors.initials: VP
authors.lastname: Lopes
mesh_terms: D050154:Adiposity / Q000502:physiology*; D001823:Body Composition / Q000502:physiology; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology; D002648:Child; D016001:Confidence Intervals; D004522:Educational Status; D017097:Electric Impedance; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D019957:Motor Skills Disorders / Q000175:diagnosis*; D010809:Physical Fitness / Q000502:physiology; D011597:Psychomotor Performance / Q000502:physiology*; D012372:ROC Curve; D012680:Sensitivity and Specificity; D012737:Sex Factors; D012959:Socioeconomic Factors; D055105:Waist Circumference / Q000502:physiology; D065927:Waist-Height Ratio
keywords: Adiposidade; Adiposity; Capacidade cardiorrespiratória; Cardiorespiratory fitness; Children; Coordenação motora; Crianças; KTK; Motor coordination