title: [Reliability of a questionnaire for measuring physical activity and sedentary behavior in children from preschool to fourth grade].
abstract: BACKGROUND
  International recommendations for physical activity and time spent in sedentary behaviors for children in their early years require the availability of measuring instruments with psychometric properties that allow for the assessment of population dynamics and interventions to improve health.
  
  
  OBJECTIVE
  To evaluate the reliability of a questionnaire to measure physical activity and sedentary behaviors in children from preschool to fourth grade.
  
  
  METHODS
  One hundred and eight parents answered the questionnaire. The instrument included socio-demographic variables, as well as those associated with physical activity, including time walking to school, organized sports and playtime activities. Sedentary behaviors included motorized transport to school, reading and "screen time", sleeping and extracurricular courses. Internal consistency, reproducibility and agreement were evaluated using Cronbach's alpha coefficient, the Intraclass Correlation Coefficient (ICC) and the Bland and Altman limits of agreement method, respectively.
  
  
  RESULTS
  Internal consistency for physical activity ranged from 0.59 to 0.64, and for sedentary behaviors between 0.22 and 0.34. The highest reproducibility was found for walking to school and time spent on this (kappa=0.79, ICC 0.69), and organized sports, and time on this activity (kappa=0.72, ICC 0.76). Among sedentary behaviors, motorized transport to school and computer use showed kappas of 0.82 and 0.71, respectively; additionally, the time spent on these behaviors showed an ICC of 0.8 and 0.59, respectively. We found limits of agreement between moderate and good for reading time, napping, extracurricular courses, computer and console use.
  
  
  CONCLUSIONS
  The questionnaire provided reliable information on the physical activity and sedentary behaviors in children under 10 years of age and could be used in other Latin American countries.
authors: Grupo de Investigación Movimiento, Armonía y Vida, Escuela de Fisioterapia, Facultad de Salud, Universidad Industrial de Santander.
authors: Diana Marina
authors: DM
authors: Camargo
authors: Grupo de Investigación Movimiento, Armonía y Vida, Escuela de Fisioterapia, Facultad de Salud, Universidad Industrial de Santander.
authors: Stefany
authors: S
authors: Santisteban
authors: Grupo de Investigación Movimiento, Armonía y Vida, Escuela de Fisioterapia, Facultad de Salud, Universidad Industrial de Santander.
authors: Erika
authors: E
authors: Paredes
authors: Grupo de Investigación Movimiento, Armonía y Vida, Escuela de Fisioterapia, Facultad de Salud, Universidad Industrial de Santander.
authors: Mary Ann
authors: MA
authors: Flórez
authors: Grupo de Investigación Movimiento, Armonía y Vida, Escuela de Fisioterapia, Facultad de Salud, Universidad Industrial de Santander.
authors: Diego
authors: D
authors: Bueno
mesh_terms: D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D003105:Colombia; D015444:Exercise; D005260:Female; D006801:Humans; D007899:Leisure Activities; D008297:Male; D010290:Parents; D015203:Reproducibility of Results; D057185:Sedentary Behavior; D011795:Surveys and Questionnaires