Measuring chronic stress
AssigneeJouzen Oy
InventorsAshley Colley, Kari Juha Aulis Kivelä, Markku Olavi Koskela, Marko Petteri Lahtela, Juuso Samuel Nissilä
Life of this patent
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Abstract
A method for measuring stress based on the heart rate (HR), the heart rate variability (HRV), and the activity level of a user includes recording the HR, the HRV, and the activity level of a user at various times during the day. Thereafter, the three values are correlated to arrive at a stress level of the user. The stress level is estimated based on a predetermined set of algorithms and analysis methods. The physical disposition and the activity levels of the user are automatically detected and the vital parameters, i.e., the HR and the HRV recorded at times that are deemed fit for conducting orthostatic tests.
Claims20
A method for measuring stress, comprising:
- with an assessment system at each of a plurality of times, recording a heart rate, a heart rate variability and an activity level;
- for each of the plurality of times, composing the recorded heart rate, heart rate variability and activity level into a corresponding stress level;
- forming, from the plurality of stress levels, a three-dimensional health space defining acceptable stress level limits;
- with the assessment system, recording a current heart rate, a current heart rate variability and a current activity level;
- composing the recorded current heart rate, current heart rate variability and current activity level into a corresponding current stress level;
- and
- providing a prompt when the current stress level lies outside of the three-dimensional health space.
A method of measuring stress, comprising:
- detecting activity level and measuring heart rate with a system configured for attachment to an exposed region of a body of a user;
- identifying a provocation from detected activity level and measured heart rate;
- recording heart rates before and after the identified provocation;
- computing heart rate variability from the recorded heart rates;
- and
- using the activity level, heart rate and heart rate variability to form, a three-dimensional health space defining acceptable stress level limits.
A method of measuring stress, comprising:
- detecting provocations and measuring heart rate with a system configured for attachment to an exposed region of a body of a user;
- with a data processor, computing heart rate variability by combining heart rate measured for a duration before a detected provocation with heart rate measured for a duration after the detected provocation;
- deriving a stress level rating using the computed heart rate variability;
- and
- comparing the stress level rating to a three-dimensional health space defining acceptable stress level limits.
Dependencies are inferred from the claim text.