Application of stepwise regression analysis in correlation between blood pressure and characteristic parameters of pulse wave in rabbits

    TANG Chi1£¬YANG Guoª²Sheng1£¬WANG Yueª²Min2£¬JIAO Teng1£¬CHEN Shiª²Pei1

    1Department of Electronics£¬School of Biomedical Engineering£¬2Department of Physiology£¬School of Basic Medicine£¬Fourth Military Medical University£¬Xi¬ðan 710033£¬China

    ¡¾Abstract¡¿ AIM: To study the correlation between the blood pressure and the characteristic parameters of pulse wave.METHODS: Ten healthy adult rabbits were used in the study and the blood pressure and pulse signals of every rabbit were recorded respectively,synchronously and simultaneously.RM6280 was used to pick out the characteristic parameters of the blood pressure wave and the pulse wave one by one.The systolic pressure,diastolic pressure and mean arterial pressure were taken as the dependent variables,and 8 characteristic parameters of pulse wave as the independent variables.SPSS11ª±0 was applied to perform the stepwise regression.RESULTS: Systolic pressure was correlated with the main wave ascending slope and the value of K.Diastolic pressure was correlated with main wave height and the value of K.Mean arterial pressure was correlated with main wave ascending slope and the value of K and H (1+ts/td).CONCLUSION: There is a specific correlation between the blood pressure and the characteristic parameters of pulse wave,which provides the theoretical foundation for using characteristic parameters of pulse wave to measure the blood pressure. ......