title: Effect of weight-loss program using self-weighing twice a day and feedback in overweight and obese subject: a randomized controlled trial.
abstract: OBJECTIVE
  To investigate the effectiveness of self-weighing twice a day with a supportive program installed on a body composition monitor in overweight adults.
  
  
  METHODS
  Sixty adults with BMI > 24 kg/m(2) were randomly assigned to either a group that weighed themselves once per day (group 1, n = 30) or a group that weighed themselves twice per day (group 2, n = 30).
  
  
  METHODS
  Group 1 was instructed to self-weigh at the same time once per day and group 2 was instructed to self-weigh immediately after waking up in the morning and immediately before going to bed every day for twelve weeks. In addition, participants in group 2 was received the daily target setting during morning weighing and the difference between the measured weight and the target weight during bedtime weighing.
  
  
  RESULTS
  Average weight reduction in group 1 was significantly lower than that in group 2 (1.0 ± 1.4 kg vs. 2.7 ± 2.1 kg, p < 0.05). The proportion of participants who lost ≥ 5% of their pre-program weight in group 2 was significantly higher than that in group 1 (28.6% vs. 3.6%, p < 0.05).
  
  
  CONCLUSIONS
  A self-weighing twice per day plus daily target setting and feedback is more effective in promoting weight loss than once-daily self-measurement.
authors.affiliation: Faculty of Service Industries, Sports and Health Management Course, University of Marketing and Distribution Sciences, Kobe, Japan. Electronic address:Yoshitake_Oshima@red.umds.ac.jp.
authors.forename: Yoshitake
authors.initials: Y
authors.lastname: Oshima
authors.forename: Yukiyo
authors.initials: Y
authors.lastname: Matsuoka
authors.forename: Naoki
authors.initials: N
authors.lastname: Sakane
mesh_terms: D000328:Adult; D000368:Aged; D000886:Anthropometry / Q000379:methods; D001823:Body Composition; D015992:Body Mass Index; D001835:Body Weight; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000628:therapy*; D050177:Overweight / Q000628:therapy*; D016037:Single-Blind Method; D015431:Weight Loss; D061217:Weight Reduction Programs / Q000379:methods*