PROBLEM TO BE SOLVED: To provide an electrocardiogram analysis device capable of acquiring subjects breath information from electrocardiogram signal with high accuracy and a control method thereof.SOLUTION: An estimated signal of a second electrocardiogram signal out of a first electrocardiogram signal and the second electrocardiogram signal different in guiding direction is generated from the first electrocardiogram signal. The low frequency component of the difference signal between the second electrocardiogram signal and the estimated signal generated by estimation means is extracted as a signal relating to respiratory effort.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】被検者の呼吸情報を心電図信号から精度良く取得することが可能な心電図解析装置およびその制御方法の提供【解決手段】誘導方向の異なる第1の心電図信号および第2の心電図信号のうち、第1の心電図信号から、第2の心電図信号の推定信号を生成する。第2の心電図信号と、推定手段が生成した推定信号との差信号の低周波成分を呼吸努力に関する信号として抽出する。【選択図】図2