Nikolova R, Danev S, Amudzhev P, Datsov E
Probl Khig. 1995;20:59-68.
This study was concerned with the relationship of changes in cardiac variance to age. A total of 518 subjects were involved. The following indicators of ACV (analysis of cardiac variance) were investigated: mean--mean value of successive cardiac intervals, SD--standard deviation of mean value of cardiac intervals (R-R), AMo--amplitude of the mode, HI--homeostatic index, Pt--spectral power of R-R related to thermoregulation, Pr--spectral power of R-R related to respiration, IBO--index of centralization. For each one of these ACV indicators, a mathematical expression of its relationship to age was specified. The coefficients obtained from the indicated expressions of the relationship "age-to-ACV indicators" represent transfer coefficients for the particular measured quantities. Their methodological importance lies in the fact that through them it becomes possible to make age corrections of ACV indicator figures for the purpose of comparing individual subjects or groups of subjects. These coefficients help to establish nomograms for the particular age ranges.
本研究关注心脏变异性变化与年龄的关系。共有518名受试者参与。研究调查了以下心脏变异性分析（ACV）指标：均值——连续心动周期的平均值，标准差（SD）——心动周期平均值（R-R）的标准差，众数振幅（AMo），内稳态指数（HI），与体温调节相关的R-R频谱功率（Pt），与呼吸相关的R-R频谱功率（Pr），集中化指数（IBO）。对于这些ACV指标中的每一个，都给出了其与年龄关系的数学表达式。从“年龄与ACV指标”关系的指定表达式中获得的系数代表特定测量量的转换系数。它们在方法学上的重要性在于，通过它们可以对ACV指标数据进行年龄校正，以便比较个体受试者或受试者组。这些系数有助于为特定年龄范围建立列线图。
