Biological rhythm disturbance degree calculating device, biological rhythm disturbance degree calculating system, biological rhythm disturbance degree calculating method, program, and recording medium

A biological rhythm disturbance degree calculating system comprising:

• a user device including
• an estimation condition input unit, to which estimation conditions including a time shift of an activity time zone, and a cause of a shift of the activity time zone are input, and
• a transmitting unit which transmits the estimation conditions to a server;
• and
• the server including
• an acquiring unit which acquires a disturbance degree of a biological rhythm with respect to a plurality of subjects, the disturbance degree of the biological rhythm being calculated based on a phase shift amount between second physiological index time series data calculated from a biomedical signal measured at a second timing and first physiological index time series data, during a calculation period decided based on the first physiological index time series data calculated from the biomedical signal measured at a first timing,
• an estimating unit which estimates the disturbance degree under the estimation conditions using the disturbance degrees with respect to the plurality of subjects, and
• a display screen generating unit which generates a display screen including information on the estimated disturbance degree and which provides the user device with the display screen.

A biological rhythm disturbance degree calculating method, comprising:

• acquiring physiological index time series data calculated from a biomedical signal of a subject;
• deciding a calculation period based on first physiological index time series data calculated from the biomedical signal measured at first timing;
• calculating, during the calculation period, a phase shift amount between second physiological index time series data calculated from the biomedical signal measured at a second timing and the first physiological index time series data;
• and
• deciding a disturbance degree of a biological rhythm during the second timing of the subject based on the phase shift amount.

A program causing a computer to execute a biological rhythm calculating method comprising:

• acquiring physiological index time series data calculated from a biomedical signal of a subject;
• deciding a calculation period based on first physiological index time series data calculated from the biomedical signal measured at a first timing;
• calculating, during the calculation period, a phase shift amount between second physiological index time series data calculated from the biomedical signal measured at a second timing and the first physiological index time series data;
• and
• deciding a disturbance degree of a biological rhythm at the second timing of the subject based on the phase shift amount.

A computer-readable recording medium storing a program which causes a computer to execute a biological rhythm disturbance degree calculating method comprising:

• acquiring physiological index time series data calculated from a biomedical signal of a subject;
• deciding a calculation period based on first physiological index time series data calculated from the biomedical signal measured at a first timing;
• calculating, during the calculation period, a phase shift amount between second physiological index time series data calculated from the biomedical signal measured at a second timing and the first physiological index time series data;
• and
• deciding a disturbance degree of a biological rhythm at the second timing of the subject based on the phase shift amount.