自己回帰モデルより推定した応答関数による心拍変動性の解析

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タイトル別名
  • Analysis of Heart Rate Variability using the Response Function Estimating from the Auto-Regressive Model
  • ジコ カイキ モデル ヨリ スイテイシタ オウトウ カンスウ ニヨル シンパク

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The heart rate variability (HRV) is one of information about physiological workloads. Mean heartrates, coefficients of variance of R-R intervals, power spectrum density functions are used as evaluation parameters of HRV. Power spectrum density function is the expression in frequency domain. Physiological correspondence for frequency components of power spectrum density function is evidence, so it had been examined in each area. The example which response function in time domain was used for is not recognized in evaluation of HRV. In this paper, we aimed at analysis with response function in evaluation of HRV during graded head-up tilt. The response function is estimated from the autoregressive model. The method is simple and easy to obtain. It is not accompanied with difficulty to giving input stimulation to the body from the outside. The Rapid Heart Rate Increase, time constant, settling time and power of the response function are suggested as evaluation parameters of HRV by response function. As a result of our analysis, response function in time domain can be used as the evaluation parameters of HRV.

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