title: [EFFECT OF INGESTION AND EXCRETION OF FLUIDS IN DETERMINING BODY COMPOSITION WITH DEUTERIUM DILUTION METHOD IN SCHOOL CHILDREN].
abstract: BACKGROUND
  the deuterium dilution technique is a reference method for measuring body composition in children. However, to our knowledge, there is no report on how some of the procedures used affect the measurement of total body water (TBW) and other estimates.
  
  
  OBJECTIVE
  to analyze whether considering fluid intake and urine excretion during the test affects the final TBW, fat mass and fat free mass results.
  
  
  CONCLUSIONS
  ingestion of fluids (100 mL rinse water + orange juice 150 mL) and excretion (urine) were measured in 139 schoolchildren (65 girls) during the determination of TBW. We found significant differences in body composition (p < 0.001), TBW (100-200 mL), FFM and FM (100-300 g) when corrected by volume of fluids ingested and excreted. However, these differences were not considered clinically relevant.
authors: Centro de Investigación en Alimentación y Desarrollo, Hermosillo, Sonora.. melina@ciad.mx.
authors: Martha Nydia
authors: MN
authors: Ballesteros-Vásquez
authors: Centro de Investigación en Alimentación y Desarrollo, Hermosillo, Sonora.. melina@ciad.mx.
authors: E Vianey
authors: EV
authors: Guerrero-Alcocer
authors: Centro de Investigación en Alimentación y Desarrollo, Hermosillo, Sonora.. melina@ciad.mx.
authors: María Isabel
authors: MI
authors: Grijalva Haro
authors: Universidad Autónoma de Nuevo León, FASPyN, UANL., Monterrey, N.L., México.. melina@ciad.mx.
authors: Erik
authors: E
authors: Ramírez-López
authors: Centro de Investigación en Alimentación y Desarrollo, Hermosillo, Sonora.. melina@ciad.mx.
authors: Alma Elizabeth
authors: AE
authors: Robles-Sardin
mesh_terms: D000293:Adolescent; D001823:Body Composition; D001834:Body Water; D002648:Child; D003903:Deuterium; D005260:Female; D006801:Humans; D008297:Male; D062486:Public Health Surveillance / Q000379:methods; D011865:Radioisotope Dilution Technique; D012574:Schools; D013334:Students; D014882:Water-Electrolyte Balance
chemical_list: D003903:Deuterium