Detection of chronotropic incompetence

Patent metadata

Field	Value
Publication number	US-10420514-B2
Application number	US-201615296689-A
Country	US
Kind code	B2
Filing date	Oct 18, 2016
Priority date	Feb 25, 2016
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

Detecting chronotropic incompetence includes determining, using a processor, a baseline cardiac health measure for a user based upon an estimate of activity level for the user, validating, using the processor, the estimate of activity level for the user with a validation factor determined from sensor data and determining, using the processor, a cardiac health measure for the user from the sensor data. A signal indicating chronotropic incompetence for the user can be provided by the processor based upon a comparison of the cardiac health measure for the user with the baseline cardiac health measure.

First claim

What is claimed is:

1. A method of detecting chronotropic incompetence, comprising:
in response to receiving a user input specifying an estimate of activity level for the user, determining, using a processor, a baseline cardiac health measure for the user from a memory, wherein the baseline cardiac health measure includes a baseline validation factor for the user and corresponds to the estimate of activity level for the user;
determining, using the processor, a validation factor for the user from first sensor data generated by a first sensor, wherein the first sensor data corresponds to a same time period as the estimate of activity level for the user;
validating the estimate of activity level for the user with the validation factor by comparing the validation factor with the baseline validation factor;
determining a cardiac health measure for the user from second sensor data generated by a second sensor corresponding to the same time period, wherein the first and second sensors are coupled to the processor;
comparing the cardiac health measure for the user with the baseline cardiac health measure; and
providing, using the processor, a signal indicating chronotropic incompetence for the user based upon the comparing of the cardiac health measure for the user with the baseline cardiac health measure.

2. The method of claim 1 , further comprising:
determining that the estimate of activity level for the user is in a defined range of activity level prior to determining the baseline cardiac health measure.

3. The method of claim 1 , wherein the second sensor is a heart rate sensor and the cardiac health measure includes heart rate or a covariance calculated using heart rate.

4. The method of claim 1 , wherein the estimate of activity level is a rate of perceived exertion for the user.

5. The method of claim 1 , further comprising:
automatically determining a confounder from sensor data comprising at least the second sensor data; and
adjusting the comparing for the confounder.

6. The method of claim 5 , wherein the confounder is sleep deprivation.

7. The method of claim 5 , wherein the confounder is high stress.

8. The method of claim 1 , wherein the first sensor is an accelerometer and the validation factor is expended energy of the user.

9. The method of claim 1 , wherein the first sensor is a microphone and the validation factor is respiratory sound of the user.

10. An apparatus for detecting chronotropic incompetence, comprising:
a first sensor configured to generate first sensor data;
a second sensor configured to generate second sensor data;
a memory configured to store the first and second sensor data and a baseline cardiac health measure; and
a processor, coupled to the memory and the first sensor and the second sensor, wherein the processor is configured to:
in response to receiving a user input specifying an estimate of activity level for the user, determine the baseline cardiac health measure for the user from the memory, wherein the baseline cardiac health measure includes a baseline validation factor for the user and corresponds to the estimate of activity level for the user;
determine a validation factor for the user from first sensor data generated by a first sensor, wherein the first sensor data corresponds to a same time period as the estimate of activity level for the user;
validate the estimate of activity level for the user with the validation factor by comparing the validation factor with the baseline validation factor;
determine a cardiac health measure for the user from second sensor data generated by a second sensor corresponding to the same time period;
compare the cardiac health measure for the user with the baseline cardiac health measure; and
provide a signal indicating chronotropic incompetence for the user based upon the comparison of the cardiac health measure for the user with the baseline cardiac health measure.

11. The apparatus of claim 10 , wherein the processor is further configured to:
determine that the estimate of activity level for the user is in a defined range of activity level prior to determining the baseline cardiac health measure.

12. The apparatus of claim 10 , wherein the second sensor is a heart rate sensor and the cardiac health measure includes heart rate or a covariance calculated using heart rate.

13. The apparatus of claim 10 , wherein the processor is further configured to:
automatically determine a confounder from sensor data comprising at least the second sensor data; and
adjust the comparing for the confounder.

14. The apparatus of claim 13 , wherein the confounder is sleep deprivation.

15. The apparatus of claim 13 , wherein the confounder is high stress.

16. The apparatus of claim 10 , wherein the first sensor is an accelerometer and the validation factor is expended energy of the user.

17. The apparatus of claim 10 , wherein the first sensor is a microphone and the validation factor is respiratory sound of the user.

18. A computer program product comprising a computer readable storage medium having program code stored thereon, the program code executable by a processor to perform operations for detecting chronotropic incompetence comprising:
in response to receiving a user input specifying an estimate of activity level for the user, determining a baseline cardiac health measure for the user from a memory, wherein the baseline cardiac health measure includes a baseline validation factor and corresponds to the estimate of activity level for the user;
determining a validation factor for the user from first sensor data generated by a first sensor, wherein the first sensor data corresponds to a same time period as the estimate of activity level for the user;
validating the estimate of activity level for the user with the validation factor by comparing the validation factor with the baseline validation factor;
determining a cardiac health measure for the user from second sensor data generated by a second sensor corresponding to the same time period, wherein the first and second sensors are coupled to the processor;
comparing the cardiac health measure for the user with the baseline cardiac health measure; and
providing a signal indicating chronotropic incompetence for the user based upon the comparing of the cardiac health measure for the user with the baseline cardiac health measure.

19. The computer program product of claim 18 , wherein the program code is executable by the processor to perform operations further comprising:
determining that the estimate of activity level for the user is in a defined range of activity level prior to determining the baseline cardiac health measure.

20. The computer program product of claim 18 , wherein the program code is executable by the processor to perform operations further comprising:
automatically determining a confounder from sensor data comprising at least the second sensor data; and
adjusting the comparing for the confounder.

21. A method of detecting chronotropic incompetence, comprising:
determining, using a processor, an estimate of activity level for a user from first sensor data generated by a first sensor;
determining, using the processor, a baseline cardiac health measure for the user from a memory, wherein the baseline cardiac health measure includes a baseline validation factor for the user and corresponds to the estimate of activity level for the user;
determining, using the processor, a validation factor for the user from second sensor data genera

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jain Jawahar
• Wortham Cody
• Young James
• Sadi Sajid
• Mistry Pranav

Classifications

• G16H50/30

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