title: Measurement of body composition in response to a short period of overfeeding.
abstract: BACKGROUND
  Obesity and overweight are increasing in prevalence in developed countries as a result of changing dietary habits and a lack of physical activity. The purpose of the present study was to evaluate the changes in body composition during short-term overfeeding using the three-component model, which is composed of fat mass (FM), total body water (TBW), and fat-free dry solids (FFDS).
  
  
  METHODS
  Ten healthy men completed 3 days of overfeeding during which they consumed 1,500 kcal/day more energy than consumed in their normal diets. Body composition was evaluated at three time points: the day before and after their normal diets and the day after the 3-day overfeeding diet.
  
  
  RESULTS
  Before and after their normal diets, there were no significant differences in body weight and composition, but after 3 days of overfeeding, body weight, TBW, and FFDS increased 0.7, 0.7, and 0.2 kg, respectively (P <0.0001). There was no significant difference in FM between the normal and overfeeding diets.
  
  
  CONCLUSIONS
  This study suggests that TBW gain contributes to weight gain following a short-term overfeeding.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Sagayama
authors.forename: Yu
authors.initials: Y
authors.lastname: Jikumaru
authors.forename: Akiko
authors.initials: A
authors.lastname: Hirata
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Yamada
authors.forename: Eiichi
authors.initials: E
authors.lastname: Yoshimura
authors.forename: Mamiko
authors.initials: M
authors.lastname: Ichikawa
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Hatamoto
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Ebine
authors.forename: Akira
authors.initials: A
authors.lastname: Kiyonaga
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Tanaka
authors.affiliation: Fukuoka University Institute for Physical Activity, 8-19-1 Nanakuma, Jounan-ku, Fukuoka 814-0180, Japan. higaki@fukuoka-u.ac.jp.
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Higaki
mesh_terms: D000328:Adult; D001823:Body Composition / Q000502:physiology*; D001834:Body Water / Q000502:physiology; D004032:Diet; D002149:Energy Intake / Q000502:physiology*; D006801:Humans; D006963:Hyperphagia; D008297:Male; D009043:Motor Activity / Q000502:physiology; D055815:Young Adult