Method and system for evaluating a physiological state depicting a person's resources

• US 9,519,755 B2
• Filed: 11/09/2012
• Issued: 12/13/2016
• Est. Priority Date: 11/11/2011
• Status: Active Grant

• Current Assignee: Firstbeat Analytics OY (Garmin Limited)
• Original Assignee: Firstbeat Technologies Oy
• Inventors: Saalasti, Sami, Kettunen, Joni, Tuominen, Satu, Kotisaari, Jaakko
• Primary Examiner(s): Johnson, Nicole F
• Application Number:
  US14/353,126
• Publication Number:
  US 20140288448A1
• Time in Patent Office: 1,495 Days
• Field of Search: 600300-301
• US Class Current: 1/1
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/02405 Determining heart rate variability
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

Disclosed is a method for evaluating a physiological state depicting a person'"'"'s resources, in which method the alternatives of physiological states depicting resources are determined, one or more contexts are selected, one or more variables are selected for each context, in which case in the evaluation the person'"'"'s physiological information is measured and recorded, the measurement-background data of the measurement are determined and recorded, a value is defined for a variable of the context, corresponding temporal periods are defined for each context, and the person'"'"'s physiological state is determined. Further, in the method a preselected correlation function is defined, a value is computed for the correlation function, a reference value is computed for each physiological state, and the physiological state of the person is determined. A corresponding system employing the method for evaluating a person'"'"'s physiological state is also disclosed.

Claims

1. A method for evaluating a physiological state depicting a person'"'"'s resources and representing different physiological recovery states, using a processing unit, a terminal device, software and at least one device for entering data, the method comprising:

determining a plurality of alternatives of physiological states depicting resources wherein one physiological state from the determined alternatives depicts an actual physiological state of the person;

selecting one or more contexts each corresponding to a temporal period for an action/state of the person;

selecting one or more variables for each context;

measuring and recording as a continuous measurement for at least 4 hours, containing one or more selected context;

measuring and recording measurement-background data of the measurement;

defining, with the recorded measurement, a value for each selected variable of the context, from at least one corresponding defined period;

defining temporal periods for each context from the physiological information with the aid of the measurement-background data; and

determining the person'"'"'s actual physiological state by exploiting the measurement-background data and the measured values of the variable of each context using steps of;

defining for each variable, a preselected correlation function in each physiological state to depict the relationship between each physiological state and the variables defined for each context;

computing a value for each preselected correlation function using the values of the said variables and the period of time of the corresponding context;

computing, with the aid of a preselected sum function, a reference value for each physiological state by combining the values of all the computed correlation functions of each physiological state;

determining one physiological state from said alternatives as the actual physiological state based on the reference values using the preselected criterion; and

presenting the actual physiological state depicting the person'"'"'s resources.

2. The method according to claim 1, wherein the said context is one or more of the following:

night, day, sleep time, exercise, recovery, work, and leisure.

3. The method according to claim 1, wherein the said variable of the context is one or more of the following:

nighttime stress balance, daytime stress balance, nighttime RMSSD, daytime RMSSD, time used for sleep, recovery for work and leisure time, nighttime RMSSD relative to daytime RMSSD, daily exercise, recovery from sleep time, start of recovery when going to bed, recovery during one day, number of stress reactions in a day, unidentified state in a day, and recovery of resource profile.

4. The method according to claim 1, wherein the said preselected correlation function is a step function.

5. The method according to claim 1, wherein at least one or more of age, sex, height, weight, and activity class, are classified as personal-background data for use in computation.

6. The method according to claim 5, wherein a reliability coefficient is determined on the basis of the physiological information and measurement-background data, and/or the said personal-background data.

7. The method according to claim 1, wherein the person'"'"'s subjective estimate of their physiological state is collected as measurement-background data, on the basis of which subjective estimate, reliability coefficient, and the physiological state determined on the basis of measurement are compared with each other, in order to provide feedback and counseling for the person.

8. The method according to claim 1, wherein between 6- and 20 physiological states are determined.

9. The method according to claim 1, wherein the person'"'"'s actual physiological state is determined by comparing the reference value with a maximum value of the sum function of the values of the preselected correlation functions of each physiological state.

10. The method according to claim 1, wherein the person'"'"'s physiological information is measured with the aid of heart rate and/or acceleration measurement.

11. The method according to claim 1, wherein the person'"'"'s physiological information is measured with the aid of temperature measurement and/or positioning.

12. The method according to claim 1, wherein the method is used in an ECG/pulse-measurement device.

13. The method according to claim 1, wherein the person'"'"'s physiological information is measured and recorded in normal living conditions.

14. The method according to claim 1, wherein between 1 and 10 of the said context variables are selected.

15. The method according to claim 1, wherein the person'"'"'s physiological information is measured and recorded as a continuous measurement over a specific period of time, wherein the period of time is arranged to be of such a length that at least one context is detected on the basis of the measured physiological information.

16. A system for evaluating a physiological state depicting a person'"'"'s resources and representing different physiological recovery states, in which system the person'"'"'s physiological state is determined on the basis of a measured physiological information, the system comprising:

a mobile measuring device for measuring the person'"'"'s physiological information as a continuous measurement, which mobile measuring device further comprising means for recording the said information;

software means for determining an actual physiological state from a plurality of alternative physiological states;

a computer for a user of the system, comprising a user interface for entering initial parameters to the software means and for determining the plurality of alternative physiological states;

means for collecting the person'"'"'s measurement-background data, which means comprise a second user interface;

a data-transfer network and a server for transferring the person'"'"'s measurement-background data to the said computer;

wherein the software means comprising;

a preselected correlation function for each variable in each physiological state for computing a correlation value using the values of the variables;

a preselected sum function for computing a reference value for each physiological state by combining the correlation values of all the computed correlation functions of each physiological state; and

comparison means for determining the person'"'"'s actual physiological state from the reference values using a preselected criterion, wherein one physiological state from the plurality of alternative physiological states represents the actual physiological state of the person.