用导纳微分波测定心缩问期及心舒间期,并与阻抗法和颈动脉法比较,表明前者优于后者。以年龄、心率、身高、体重、胸围和性别等因素与心缩间期和心舒间期进行单因素和多因素相关分析,并用逐步回归建立各参数的最优回归方程。 Admittance differential wave was used to measure the cardiac systolic phase and cardiac systolic phase, and compared with the impedance method and carotid artery method, indicating that the former is better than the latter. The factors of systolic and inter-systolic and inter-systolic periods were analyzed by single factor and multi-factor by age, heart rate, height, weight, bust and gender, and the regression equation of each parameter was established by stepwise regression.