Computing user's physiological state related to physical exercises

  • US 10,709,382 B2
  • Filed: 03/04/2013
  • Issued: 07/14/2020
  • Est. Priority Date: 03/04/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method for determining a physiological state of a user by an apparatus, the method comprising:

  • acquiring, in the apparatus, gait measurement data from at least one motion sensor representing measured gait of the user during a physical exercise;

    computing, in the apparatus, at least one of step interval variability and stride interval variability from the gait measurement data;

    determining, in the apparatus standard conditions for testing a level of fatigue;

    determining, by the apparatus, the user'"'"'s level of fatigue from said at least one of step interval variability and stride interval variability and using, in the determination of the level of fatigue, exclusively gait measurement data measured under the standard conditions by excluding from the determination of the level of fatigue the gait measurement data that has been measured outside the standard conditions; and

    determining when the standard conditions are satisfied by using the following steps (a) and (b);

    (a) the standard conditions are defined by heart activity measurement data received from a heart activity sensor and at least one threshold or range for the heart activity measurement data, and the apparatus compares the measured heart activity measurement data with the at least one threshold or range;

    if the heart activity measurement data falls outside the range defining the standard conditions, the apparatus determines the standard conditions not to have been met; and

    if the heart activity measurement data falls within the range defining the standard conditions, the apparatus determines the standard conditions to have been met;

    (b) the standard conditions are defined by running speed measured from the gait measurement data during the exercise with prior knowledge of a step length or a stride length;

    if the measured running speed falls within a predetermined range defining the standard conditions, the apparatus determines the standard conditions to be fulfilled; and

    if the measured running speed falls outside the predetermined range defining the standard conditions, the apparatus determines the standard conditions not to be fulfilled.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×