PROBLEM TO BE SOLVED: To obtain a new daily target weight loss value, on the basis of past target achievement rates about daily target weight loss values, when measuring a body weight value afterwards.SOLUTION: A device for controlling a body weight comprises: a change obtaining unit 66 for obtaining a daily body weight change value on the basis of a daily body weight measurement value of a subject an achievement rate obtaining unit 68 for comparing the daily body weight change value obtained by the change obtaining unit and a daily target weight loss value and, on the basis of a comparison result, for obtaining a target achievement rate indicating the proportion of the number of days on which the daily weight change value has reached the daily target weight loss value with respect to the total number of days during a predetermined period of time and a target obtaining unit 70 for obtaining a new daily target weight loss value to function as a target, on the basis of the target achievement rate obtained by the achievement rate obtaining unit, when performing weight measurement afterwards.COPYRIGHT: (C)2013,JPO&INPIT【課題】日内目標減量値についての過去の目標達成率に基づき、その後に体重値を測定する際の新たな日内目標減量値を取得する。【解決手段】体重管理装置は、被測定者の毎日の体重測定値に基づいた毎日の日内体重変化値を取得するための変化取得部66と、変化取得部により取得された日内体重変化値と日内目標減量値とを比較処理し、比較結果に基づき、所定期間内の全日数に対する日内体重変化値が日内目標減量値に達した日数の割合を指す目標達成率を取得するための達成率取得部68と、達成率取得部により取得された目標達成率に基づき、その後に体重測定する際の目標となるべき新たな日内目標減量値を取得するための目標取得部70と、を備える。【選択図】図3
