SLEEP STAGE DETERMINATION DEVICE, SLEEP STAGE DETERMINATION METHOD, SLEEP STAGE DETERMINATION PROGRAM, AND STRESS DEGREE DETERMINATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a sleep stage determination device, a sleep stage determination method, a sleep stage determination program, and a stress degree determination method.SOLUTION: A sleep stage determination device is provided with a detection part that uses a microwave Doppler radar to detect a body motion, respiration, a pulse wave, an HRV calculation part that calculates a cardiac rate fluctuation index HRV, a standard deviation calculation part that calculates a standard deviation of a respiration interval; a body motion intensity calculation part that calculates body motion intensity; and a determination part that uses the cardiac rate fluctuation index HRV, the standard deviation, and the body motion intensity to determine a sleep stage.SELECTED DRAWING: Figure 1