PROBLEM TO BE SOLVED: To highly accurately measure an index of blood flow in a living body.SOLUTION: A living body analysis apparatus includes: a light emitting unit for irradiating a living body with coherent light； and a light receiving unit for receiving light transmitted through the living body. The living body analysis apparatus further includes: an operation control unit for intermittently driving, by a modulation frequency, a detection device which outputs a detection signal according to a reception light intensity at the light receiving unit； and an index calculation unit for calculating a blood flow index for the blood flow of the living body from an intensity within an analysis range on a low-frequency side or a high-frequency side with respect to the modulation frequency, among frequency-by-frequency intensities in detection signals generated by the detection device.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】生体の血流に関する指標を高精度に測定する。【解決手段】コヒーレントな光を生体に照射する発光部と当該生体の内部を通過した光を受光する受光部とを含み、当該受光部による受光強度に応じた検出信号を出力する検出装置を、変調周波数で間欠駆動する動作制御部と、前記検出装置が生成した検出信号における周波数毎の強度のうち、前記変調周波数に対して低周波数側または高周波数側の解析範囲内の強度から、前記生体の血流に関する血流指標を算定する指標算定部とを具備する生体解析装置。【選択図】図３
