< Topic > When flexibility of the finger artery which it is related to arteriosclerosis is appraised, without measuring the blood pressure, on the basis of the pulsating wave of the finger artery can measure flexible index of the finger artery simply and cheaply the finger artery flexible measurement program which, the finger artery flexible measurement equipment and finger artery flexible measuring method are offered.Solutions Pulsating wave data memory section 42 and cuffs pressure data memory section amplitude of the interchange component of 43 and the pulsating wave ( i) division flowing directly straight at the mean value component (i), when the NPV calculation section amplitude of 52 which calculates normalization pulsating wave capacity and the pulsating wave is maximum, the relative cuffs pressure calculation section 53 which calculates the difference of cuffs pressure and each cuffs pressure relative cuffs pressure (P r) as and the below-mentioned formula (1) linear regression slope (n) the FEI calculation section 54 which it calculates as flexible index of the finger artery ln (NPV) =ln (bn) n P r formula (1) as for b constant Functioning it can point to the computer as.【課題】 動脈硬化の程度に関連する指動脈の弾力性を評価するにあたって、血圧を測定することなく、指動脈の脈波に基づいて指動脈の弾力性指標を簡易かつ安価に測定することができる指動脈弾力性測定プログラム、指動脈弾力性測定装置および指動脈弾力性測定方法を提供する。【解決手段】 脈波データ記憶部42と、カフ圧データ記憶部43と、脈波の交流成分の振幅(ΔI)を直流成分(I)の平均値で除算して規準化脈波容積を算出するNPV算出部52と、脈波の振幅が最大のときのカフ圧と各カフ圧の差を相対カフ圧(Pr)として算出する相対カフ圧算出部53と、下記式(1)の直線回帰勾配(n)を指動脈の弾力性指標として算出するFEI算出部54ln(NPV)=ln(bn)-n・Pr ・・・式(1) bは定数としてコンピュータを機能させる。
