Activity monitoring device with assessment of exercise intensity

• US 10,111,589 B2
• Filed: 05/27/2016
• Issued: 10/30/2018
• 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): Gedeon, Brian T
• Application Number:
  US15/166,586
• Publication Number:
  US 20160345829A1
• Time in Patent Office: 886 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;

a user 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; 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 associated with at least two exercise periods, at least a portion of each of the at least two exercise periods associated with a severe exercise intensity domain, and the at least two exercise periods having differing durations;

calculate a total number of tissue oxygenation points for each of the at least two exercise periods as an integration of tissue oxygenation percentages for each second of a duration of an exercise period, from the at least two exercise periods;

calculate an exercise period summary data point for each of the at least two exercise periods as a total number of tissue oxygenation points versus a duration of exercise;

calculate a regression through the exercise period summary data points for the at least two exercise periods;

output a critical tissue oxygenation percentage for the user equal to a slope of at least a portion of the regression; and

output an anaerobic work capacity equal to an intercept associated with at least a portion of the regression.

2. The apparatus of claim 1, wherein the computer-readable medium further comprises computer-executable instructions, that when executed by the processor, are configured to perform to at least:

receive data, from the oxygenation sensor, indicating an additional tissue oxygenation percentage associated with an additional exercise period; and

compare the additional tissue oxygenation percentage to the critical tissue oxygenation percentage,

wherein if the additional tissue oxygenation percentage is less than the critical tissue oxygenation, output, to the user interface, a signal indicating that the user is exercising at an unsustainable work rate, and

wherein if the additional tissue oxygenation percentage is greater than or equal to the critical tissue oxygenation percentage, output, to the user interface, a signal indicating that the user is exercising at a sustainable work rate.

3. The apparatus of claim 1, wherein the computer-readable medium further comprises computer-executable instructions, that when executed by the processor, are configured to perform at least:

receive data, from the oxygenation sensor, indicating an additional tissue oxygenation percentage associated with an additional exercise;

receive an indication of a distance associated with the additional exercise; and

calculate an expected time to completion of the additional exercise, based on the calculated critical tissue oxygenation percentage.

4. The apparatus of claim 1, wherein the oxygenation sensor utilizes near infra-red spectroscopy.

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

6. The apparatus of claim 5, wherein the muscle is classified as an inactive muscle for the type of exercise undertaken by the user for the at least two exercise periods.

7. The apparatus of claim 1, wherein the apparatus is configured to be worn on an appendage of a user.

8. The apparatus of claim 1, wherein the regression is a linear regression.

9. The apparatus of claim 1, wherein the regression is a curvilinear regression.