以11名健康男青年为对象,在坐位呼吸条件下用阻抗心动图微分波C波的升支起点为B点而不考虑该起点是否落在基线上,对SV及STI在5种呼吸时相的参数进行了测定。结果表明,无论是平静呼吸或深快呼吸条件下均可采用“T”进行测定。由于增加了可测波数,从而增加了所得数据的可信度,而且在运动或难以停上呼吸的条件下也可测定。如能采用联机叠加处理,将可进一步提高其精度。 To 11 healthy young men as the object, sitting breathing conditions with differential impedance C-wave ascending ascending point of the B-point regardless of whether the starting point on the baseline, the SV and STI in the five respiratory phase The parameters were measured. The results show that, whether it is calm breathing or breathing under fast breathing conditions can be used “T” were measured. The increase in measurable wave numbers increases the confidence of the resulting data and is also detectable under conditions of exercise or difficulty in stopping breathing. If you can use online overlay processing, will further improve its accuracy.