Activity monitoring device with assessment of exercise intensity

• US 10,765,319 B2
• Filed: 05/27/2016
• Issued: 09/08/2020
• Est. Priority Date: 04/15/2015
• Status: Active Grant

• Current Assignee: Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Kirby, Brett S., Wilkins, Bradley W., Clark, David, Bradley, Eric, Besemer, Elizabeth
• Primary Examiner(s): Winakur, Eric F
• Assistant Examiner(s): Fardanesh, Marjan
• Application Number:
  US15/166,702
• Publication Number:
  US 20160345889A1
• Time in Patent Office: 1,565 Days
• Field of Search: None
• CPC Class Codes: A61B 2503/10 Athletes
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0008 Temperature signals
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• 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 5/103 Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes A61B5/08 takes precedence; measuring aids for tailors A41H1/00; measuring instruments specially adapted for dentistry A61C19/04
• 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 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/222 combined with detection or measurement of physiological parameters, e.g. heart rate
• CPC Class Codes: A61B 5/224 Measuring muscular strength
• CPC Class Codes: A61B 5/443 Evaluating skin constituents, e.g. elastin, melanin, water
• CPC Class Codes: A61B 5/486 Bio-feedback A61B5/375 takes precedence
• CPC Class Codes: A61B 5/6801 specially adapted to be attached to or worn on the body surface
• CPC Class Codes: A61B 5/6802 Sensor mounted on worn items
• CPC Class Codes: A61B 5/6807 Footwear
• CPC Class Codes: A61B 5/6822 Neck
• CPC Class Codes: A61B 5/6824 Arm or wrist
• CPC Class Codes: A61B 5/6829 Foot or ankle
• CPC Class Codes: A63B 2024/0065 : Evaluating the fitness, e.g. fitness level or fitness index
• CPC Class Codes: A63B 2024/0068 : Comparison to target or threshold, previous performance or not real time comparison to other individuals
• CPC Class Codes: A63B 2220/20 : Distances or displacements
• CPC Class Codes: A63B 2220/30 : Speed
• CPC Class Codes: A63B 2220/40 : Acceleration
• CPC Class Codes: A63B 2220/836 : Sensors arranged on the body of the user
• CPC Class Codes: A63B 2230/01 : User's weight
• CPC Class Codes: A63B 24/0062 : Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance
• CPC Class Codes: G09B 7/00 : Electrically-operated teaching apparatus or devices working with questions and answers mechanically operated G09B3/00; computing arrangements G06F
• CPC Class Codes: G16H 10/20 : for electronic clinical trials or questionnaires
• CPC Class Codes: G16H 20/30 : relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: G16H 40/67 : for remote operation

Abstract

Aspects relate to a portable device that may be used to identify a critical intensity and an anaerobic work capacity of an individual. The device may utilize muscle oxygen sensor data, speed data, or power data. The device may utilize data from multiple exercise sessions, or may utilize data from a single exercise session. The device may additionally estimate a critical intensity from a previous race time input from a user.

Claims

1. An apparatus, comprising:

a processor;

an interface;

an oxygenation sensor, configured to be positioned proximate an area of skin of a user, the oxygenation sensor further configured to output data indicative of a tissue oxygenation of a body tissue of the user;

a power sensor configured to output data indicative of a power consumption of the user; and

a non-transitory computer-readable medium comprising computer-executable instructions that when executed by the processor are configured to perform at least;

receive tissue oxygenation data from the oxygenation sensor during an exercise session comprising at least a portion of a total exercise time exercising within a severe exercise intensity domain;

calculate a change in tissue oxygenation as a difference between a current tissue oxygenation value and a previous tissue oxygenation value; and

compare the change in tissue oxygenation to a threshold change value and a threshold duration, wherein the comparison is indicative of a critical power value

wherein if the change in tissue oxygenation is less than or equal to the threshold change value, and a change in tissue oxygenation persists for a first duration greater than or equal to the threshold duration, output a signal to the interface indicating a critical power value equal to a current power indicated by the power sensor,

wherein if the change in tissue oxygenation is greater than the threshold change value or the change in tissue oxygenation persists for a second duration less than the threshold duration, output a signal to the interface indicating that the current power indicated by the power sensor is not equal to the critical power of the user,

wherein the apparatus is configured to be worn on an appendage of the user, and

wherein the oxygenation sensor utilizes near infra-red spectroscopy.

2. The apparatus of claim 1, wherein the current tissue oxygenation value and the previous tissue oxygenation value are rolling averages of tissue oxygenation data points received from the oxygenation sensor during a rolling average duration.

3. The apparatus of claim 1, wherein the body tissue is a muscle.

4. The apparatus of claim 2, wherein the rolling average duration is at least two seconds.

5. The apparatus of claim 1, wherein the computer-executable instructions, when executed by the processor, further cause the apparatus to:

calculate, an anaerobic work capacity for the user equal to a summation of a plurality of positive difference values for the total exercise time, wherein a difference value is equal to a difference between an output power value from the power sensor and the critical power value.

6. An apparatus, comprising:

a processor;

an interface;

an oxygenation sensor, configured to be positioned proximate an area of skin of a user, the oxygenation sensor further configured to output data indicative of a tissue oxygenation of a body tissue of the user;

a power sensor configured to output data indicative of a power consumption of the user; and

a non-transitory computer-readable medium comprising computer-executable instructions that when executed by the processor are configured to perform at least;

receive tissue oxygenation data from the oxygenation sensor during an exercise session comprising at least a portion of a total exercise time exercising within a severe exercise intensity domain;

calculate a change in tissue oxygenation as a difference between a current tissue oxygenation value and a previous tissue oxygenation value; and

compare the change in tissue oxygenation to a threshold change value, wherein the comparison is indicative of a critical power value

wherein if the change in tissue oxygenation is less than or equal to the threshold change value, output a signal to the interface indicating a critical power value equal to a current power indicated by the power sensor,

wherein if the change in tissue oxygenation is greater than the threshold change value, output a signal to the interface indicating that the current power indicated by the power sensor is not equal to the critical power of the user,

wherein the apparatus is configured to be worn on an appendage of the user, and

wherein the oxygenation sensor utilizes near infra-red spectroscopy.

7. The apparatus of claim 6, wherein the power sensor comprises an accelerometer.

8. The apparatus of claim 6, wherein the power sensor comprises a dynamometer.

9. The apparatus of claim 6, wherein the interface comprises a graphical user interface.

10. The apparatus of claim 6, wherein the interface comprises a transceiver.

11. The apparatus of claim 6, wherein the computer-executable instructions, when executed by the processor, further cause the apparatus to:

calculate, an anaerobic work capacity for the user equal to a summation of a plurality of positive difference values for the total exercise time, wherein a difference value is equal to a difference between an output power value from the power sensor and the critical power value.

12. The apparatus of claim 6, wherein the body tissue is an active muscle for the exercise session.

13. The apparatus of claim 6, wherein the body tissue is an inactive muscle for the exercise session.

14. A non-transitory computer-readable medium comprising computer-executable instructions that when executed by a processor are configured to perform at least:

receive, from an oxygenation sensor, tissue oxygenation data during an exercise session comprising at least a portion of a total exercise time exercising within a severe exercise intensity domain;

calculate a change in tissue oxygenation as a difference between a current tissue oxygenation value and a previous tissue oxygenation value; and

compare the change in tissue oxygenation to a threshold change value, wherein the comparison is indicative of a critical power value

wherein if the change in tissue oxygenation is less than or equal to the threshold change value, output a signal to an interface indicating a critical power value equal to a current power indicated by a power sensor,

wherein if the change in tissue oxygenation is greater than the threshold change value, output a signal to the interface indicating that the current power indicated by the power sensor is not equal to the critical power of a user, and

wherein the oxygenation sensor utilizes near infra-red spectroscopy.

15. The non-transitory computer-readable medium of claim 14, wherein the current tissue oxygenation value and the previous tissue oxygenation value are rolling averages of tissue oxygenation data points received from the oxygenation sensor during a rolling average duration.

16. The non-transitory computer-readable medium of claim 15, wherein the rolling average duration is at least two seconds.

17. The non-transitory computer-readable medium of claim 14, wherein the rolling average duration ranges between least 1 and 10 seconds.