Heart rate monitor, method and computer software product

1. A user-specific heart rate monitor comprising:

a characterizing unit to determine from a user's electrocardiogram a reference value of a heart rate variable characterizing the heart rate;

a determining unit to determine at least one environmental parameter value proportional to air density using measurement of a physical variable proportional to air density;

an associating unit, connected to the characterizing unit and to the determining unit, to associate the reference value of the heart rate variable with the at least one environmental parameter value, the at least one environmental parameter value associated with the reference value of the heart rate variable; and

a register, connected to the associating unit, to record in the register the at least one environmental parameter value and the reference value of the heart rate variable associated with the at least one environmental parameter value, the register determining and outputting the reference value of the heart rate variable to be associated with an instantaneous value of the at least one environmental parameter value by using the instantaneous value of the at least one environmental parameter value, the at least one environmental parameter value in the register, and the reference value of the heart rate variable associated with the at least one environmental parameter value in the register.

2. The heart rate monitor of claim 1 , wherein the characterizing unit is arranged to determine from the user's electrocardiogram a plurality of reference values of the heart rate variable characterizing the heart rate;

wherein the determining unit determines a plurality of environmental parameter values of different magnitudes;

wherein the associating unit associates the reference values of the heart rate variable with the environmental parameter values such that each reference value of the heart rate variable is associated with the environmental parameter value determined at a moment the reference value of the heart rate variable is determined; and

wherein the register records each environmental parameter value and the reference value of the heart rate variable associated with each environmental parameter value.

3. The heart rate monitor of claim 2 , the heart rate monitor further comprising staffing means connected to the characterizing unit and to the determining unit, the starting means starting the determination of the reference values of the heart rate variable on the basis of the environmental parameter values.

4. The heart rate monitor of claim 2 , the heart rate monitor further comprising an ending unit connected to the characterizing unit and to the determining unit, the ending unit ending the determination of the reference values of the heart rate variable and the determination of the environmental parameter values on the basis of the environmental parameter values.

5. The heart rate monitor of claim 1 , wherein the determining unit is configured to determine an instantaneous environmental parameter value;

wherein the determining unit records the instantaneous environmental parameter value into the register;

wherein the register determines and outputs the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value by using the instantaneous environmental parameter value, the environmental parameter values, and the reference value of the heart rate variable associated with each environmental parameter value recorded in the register, the heart rate monitor further comprising an instantaneous environmental parameter value display unit to display the instantaneous environmental parameter value and the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value.

6. The heart rate monitor of claim 1 , wherein the characterizing unit is arranged to determine from the user's electrocardiogram an instantaneous value of the heart rate variable characterizing an instantaneous heart rate;

wherein the determining unit determines an instantaneous environmental parameter value;

wherein the determining unit records the instantaneous environmental parameter value into the register;

wherein the register determines and outputs the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value by using the instantaneous environmental parameter value, the environmental parameter values, and the reference value of the heart rate variable associated with each environmental parameter value recorded in the register, the heart rate monitor further comprising a reference value display unit to display the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value and the instantaneous value of the heart rate variable in relation to the reference value of the heart rate variable associated with the instantaneous environmental parameter value.

7. The heart rate monitor of claim 1 , wherein the reference value of the heart rate variable is at least one of the following: the user's resting heart rate, the reference value of the user's heart rate variation.

8. The heart rate monitor of claim 1 , wherein the environmental parameter is at least one of the following: the measured air pressure, the altitudinal location of the heart rate monitor.

9. A method of providing heart rate information, comprising:

determining from a user's electrocardiogram a reference value of a heart rate variable characterizing the heart rate;

determining at least one environmental parameter value proportional to air density using measurement of a physical variable proportional to air density;

associating the reference value of the heart rate variable with the at least one environmental parameter value, the at least one environmental parameter value associated with the reference value of the heart rate variable;

recording in a register the at least one environmental parameter value and the reference value of the heart rate variable associated with the at least one environmental parameter value; and

determining and outputting by the register the reference value of the heart rate variable to be associated with an instantaneous value of the at least one environmental parameter value by using the instantaneous value of the at least one environmental parameter value, the at least one environmental parameter value in the register, and the reference value of the heart rate variable associated with the at least one environmental parameter value in the register.

10. The method of claim 9 , further comprising:

determining from the user's electrocardiogram a plurality of reference values of the heart rate variable characterizing the heart rate;

determining a plurality of environmental parameter values of different magnitudes;

associating the reference values of the heart rate variable with the environmental parameter values such that each reference value of the heart rate variable is associated with the environmental parameter value determined at a determination moment of the reference value of the heart rate variable; and

recording in the register each environmental parameter value and the reference value of the heart rate variable associated with each environmental parameter.

11. The method of claim 10 , further comprising staffing a determination of the reference values of the heart rate variable on the basis of the environmental parameter values.

12. The method of claim 10 , further comprising ending a determination of the reference values of the heart rate variable and the determination of the environmental parameter values on the basis of the environmental parameter values.

13. The method of claim 9 , further comprising:

determining an instantaneous value of an environmental parameter;

recording the instantaneous value of the environmental parameter into the register;

determining and outputting from the register the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value using fin instantaneous environmental parameter value, the environmental parameter values, and the reference value of the heart rate variable associated with each environmental parameter value recorded in the register; and

displaying the instantaneous environmental parameter value and the reference value of the heart rate variable to be associated with each environmental parameter value.

14. The method of claim 9 , further comprising:

determining an instantaneous value of an environmental parameter;

recording the instantaneous value of the environmental parameter into the register;

determining from the user's electrocardiogram an instantaneous value of the heart rate variable characterizing the heart rate;

determining and outputting from the register the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value using the instantaneous environmental parameter value, the environmental parameter values, and the reference value of the heart rate variable associated with each environmental parameter value recorded in the register; and

displaying the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value and the instantaneous value of the heart rate variable in relation to the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value.

15. A tangible computer readable software carrier that includes computer instructions thereon, which when executed by a computer of a heart rate monitor provide heart rate information by:

determining from a user's electrocardiogram a reference value of a heart rate variable characterizing the heart rate;

determining at least one environmental parameter value proportional to air density using a measurement of a physical variable proportional to air density;

associating the reference value of the heart rate variable with the at least one environmental parameter value, the at least one environmental parameter value associated with the reference value of the heart rate variable;

recording in a register at least one environmental parameter value and the reference value of the heart rate variable associated with the at least one environmental parameter value; and

determining and outputting by the register the reference value of the heart rate variable to be associated with an instantaneous value of the at least one environmental parameter value by using the instantaneous value of the at least one environmental parameter value, the at least one environmental parameter value in the register, and the reference value of the heart rate variable associated with the at least one environmental parameter value in the register.

16. The tangible computer readable software carrier of claim 15 , that further includes computer instructions thereon, which when executed by the computer of the heart rate monitor provide heart rate information by:

determining from the user's electrocardiogram a plurality of reference values of the heart rate variable characterizing the heart rate;

determining a plurality of environmental parameter values of different magnitudes;

associating the reference values of the heart rate variable with the environmental parameter values such that each reference value of the heart rate variable is associated with the environmental parameter value determined at a determination moment of the reference value of the heart rate variable; and

recording in the register each environmental parameter value and the reference value of the heart rate variable associated with each environmental parameter.

17. The tangible computer readable software carrier of claim 16 that further includes computer instructions thereon, which when executed by the computer of the heart rate monitor provide heart rate information by starting a determination of the reference values of the heart rate variable on the basis of the environmental parameter values.

18. The tangible computer readable software carrier of claim 16 that further includes computer instructions thereon, which when executed by the computer of the heart rate monitor provide heart rate information by ending a determination of the reference values of the heart rate variable and the determination of the environmental parameter values on the basis of the environmental parameter values.

19. The tangible computer readable software carrier of claim 15 that further includes computer instructions thereon, which when executed by the computer of the heart rate monitor provide heart rate information by

determining an instantaneous value of an environmental parameter; recording the instantaneous value of the environmental parameter into the register;

determining and outputting from the register the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value using the instantaneous environmental parameter value, the environmental parameter values, and the reference value of the heart rate variable associated with each environmental parameter value recorded in the register; and

displaying the instantaneous environmental parameter value and the reference value of the heart rate variable to be associated with each environmental parameter value.

20. The tangible computer readable software carrier of claim 15 that further includes computer instructions thereon, which when executed by the computer of the heart rate monitor provide heart rate information by

determining an instantaneous value of an environmental parameter;

recording the instantaneous value of the environmental parameter into the register;

determining from the user's electrocardiogram an instantaneous value of the heart rate variable characterizing the heart rate;

determining and outputting from the register the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value using the instantaneous environmental parameter value, the environmental parameter values, and the reference value of the heart rate variable associated with each environmental parameter value recorded in the register; and

displaying the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value and the instantaneous value of the heart rate variable in relation to the reference value of the heart rate variable to be associated with the instantaneous environmental parameter value.