PROBLEM TO BE SOLVED: To evaluate the change of body composition from past to now by forecasting the long term change of the indices of the body composition considering the influence of aging to the body condition.SOLUTION: The CPU 110 of a body composition meter 100 reads out the regression expression of the indices to be forecasted from a ROM 302 and substitutes present age (p years old) (p is a natural number) for the regression expression. As the result, the change quantity Y1(p) in the present age can be obtained. The CPU 110 substitutes the age after n years (n is a natural number) for the regression expression, obtains the change quantity Y1(p+n), then obtains the change quantity Y1(n)=Y1(p+n)-Y1(p) from now to the age after n years. The CPU 110 obtains the future values of indices after n years from the change quantity obtained by calculation and the present value of the indices measured by the body composition meter 100.COPYRIGHT: (C)2010,JPO&INPIT【課題】加齢が体組成に及ぼす影響を考慮して、体組成の指標の長期的な変化を予測し、過去から現在までの体組成の変化を評価する。【解決手段】体組成計100のCPU110は、ROM302から、予測対象である指標の回帰式を読み出し、この回帰式に現在の年齢(p歳)(pは自然数)を代入する。その結果、現在の年齢における変化量Y1(p)が得られる。CPU110は、n年後(nは自然数)の年齢を回帰式に代入して、変化量Y1(p+n)を求め、続いて、現在からn年後の年齢までの変化量Y1(n)=Y1(p+n)-Y1(p)を求める。CPU110は、演算により求めた変化量と体組成計100が測定した指標の現在値とに基づいて、n年後の指標の未来値を得る。【選択図】図3
