Method for measuring physiological parameters of physical activity

• US 10,292,629 B2
• Filed: 03/19/2015
• Issued: 05/21/2019
• Est. Priority Date: 03/19/2014
• Status: Active Grant

• Current Assignee: University of Houston System
• Original Assignee: University of Houston System
• Inventors: Pollonini, Luca, Dacso, Clifford C.
• Primary Examiner(s): Bockelman, Mark
• Application Number:
  US14/662,801
• Publication Number:
  US 20150265194A1
• Time in Patent Office: 1,524 Days
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/1107 Measuring contraction of parts of the body, e.g. organ, muscle apparatus for measuring work or force in general G01L
• CPC Class Codes: A61B 5/1112 Global tracking of patients, e.g. by using GPS
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers
• CPC Class Codes: A61B 5/7225 Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation A61B5/30, A61B5/316 take precedence; transformers for specific applications H01F38/00; amplifiers H03F

Abstract

The present disclosure generally relates to methods of using near infrared radiation, such as from a near infrared spectroscopy device, to monitor physical activity in a person. In one aspect, a method of measuring physiological parameters is provided. The method further includes determining a NIRS-derived measure of a tissue of a person using near infrared spectroscopy over a time period, associating the NIRS-derived measure to the time period to determine a function-related change, and associating the function-related change to a biomechanical function.

Claims

1. A method of measuring physiological parameters, comprising:

determining a NIRS-derived measure of a tissue using near infrared (NIR) radiation over a time period, the time period including a resting period and an active period, comprising;

emitting NIR radiation from an optical sensor of an NIRS device into a tissue of a subject during the resting period and the active period;

detecting radiation emitted from the tissue of the subject during the resting period and the active period with the optical sensor; and

calculating, based on the detected radiation, by one or more processors in communication with the NIRS device, the NIRS-derived measure for the resting period and the active period, wherein the NIRS-derived measure is oxygenation related data;

associating the NIRS-derived measure as determined during the resting period to the NIRS-derived measure as determined during the active period to determine a function-related change;

associating the function-related change to a biomechanical function, wherein the biomechanical function is incorporated into a time frame activity score;

associating a change in intensity of the NIRS-derived measure over the time period to determine an occurrence and an intensity of the biomechanical function; and

displaying the time frame activity score, the occurrence of the biomechanical function, or the intensity of the biomechanical function to a user.

2. The method of claim 1, wherein the function-related change is a function-related oscillation.

3. The method of claim 1, further comprising associating the function-related change to a biomechanical activity.

4. The method of claim 1, wherein the biomechanical function is a muscle contraction.

5. The method of claim 1, further comprising:

associating the NIRS-derived measure as determined during the resting period to the NIRS-derived measure as determined during the active period to determine a background oscillation; and

transforming the NIRS-derived measure as determined during the active periods and the resting periods to exclude the background oscillation.

6. The method of claim 5, wherein the background oscillation is related to a heart rate.

7. The method of claim 1, wherein the NIRS-derived measure is the total hemoglobin [tHb].

8. The method of claim 1, wherein the time frame activity score is calculated by adding all detected changes on the measured oxygenation data during a measured time from as compared to a baseline.

9. A method of measuring physiological parameters, comprising:

determining a NIRS-derived measure of a tissue using near infrared (NIR) radiation over a time period, the time period including a resting period and an active period, comprising;

emitting NIR radiation from an optical sensor of an NIRS device into a tissue of a subject during the resting period and the active period;

detecting radiation emitted from the tissue of the subject during the resting period and the active period with the optical sensor; and

calculating, based on the detected radiation, by one or more processors in communication with the NIRS device, the NIRS-derived measure for the resting period and the active period, wherein the NIRS-derived measure is oxygenation related data;

associating the NIRS-derived measure as determined during the resting period to the NIRS-derived measure as determined during the active period to determine a function-related change, comprising;

associating the NIRS-derived measure as determined during the resting period to the NIRS-derived measure as determine during the active period to determine a background oscillation; and

transforming the NIRS-derived measure as determined during the active periods and the resting periods to exclude the background oscillation to determine a function-related change;

associating the function-related change to a biomechanical function, wherein the biomechanical function is incorporated into a time frame activity score; and

associating a change in intensity of the NIRS-derived measure over the time period to determine an occurrence and an intensity of the biomechanical function; and

displaying the time frame activity score, the occurrence of the biomechanical function, or the intensity of the biomechanical function to a user.

10. The method of claim 9, wherein the function-related change is a function-related oscillation.

11. The method of claim 9, further comprising associating the function-related change to a biomechanical activity.

12. The method of claim 9, wherein the biomechanical function is a muscle contraction.

13. The method of claim 9, further comprising applying a change in intensity of the NIRS-derived measure over the time period to determine an occurrence and an intensity of the biomechanical function.

14. The method of claim 9, wherein the background oscillation is related to the heart rate.

15. The method of claim 9, wherein the NIRS-derived measure is the total hemoglobin [tHb].