Controlling of fitness exercise

• US 6,687,535 B2
• Filed: 02/23/2001
• Issued: 02/03/2004
• Est. Priority Date: 02/23/2000
• Status: Expired due to Term

• Current Assignee: Polar Electro Oy
• Original Assignee: Polar Electro Oy
• Inventors: Mäkikallio, Timo, Hautala, Arto, Tulppo, Mikko, Nissilä, Seppo, Heikkilä, Ilkka
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Assistant Examiner(s): Oropeza, Frances P.
• Application Number:
  US09/792,302
• Publication Number:
  US 20010027266A1
• Time in Patent Office: 1,075 Days
• Field of Search: 482/8, 482/9, 600/382, 600/384, 600/390, 600/481, 600/408, 600/509, 600/520
• US Class Current: 600/520
• 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 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/222 combined with detection or measurement of physiological parameters, e.g. heart rate

Abstract

A heart rate measuring arrangement for controlling a recovery exercise of a person from a fitness exercise which measures the heart rate, forms control information, and displays the formed control information so that the recovery exercise is performed at a controlled heart rate level.

Claims

1. A method of controlling recovery of a person from a fitness exercise having an exercise workload performed by him/her, comprising:

controlling a recovery exercise following the fitness exercise so that the recovery exercise is performed at a heart rate or at heart rates below a threshold value of the heart rate, wherein the heart has a temporal variation of heart beats and an expected moment at which the heart should beat, and wherein said heart rate variation is the temporal variation in heart beats around the expected moments at which the heart should beat;

wherein said person has a body, a heart, a physical condition and a maximal oxygen uptake, and wherein said body has an amount of lactate and a lactate concentration and said heart has a heart beat having an actual moment or actual moments and an expected moment;

wherein the threshold value of the heart rate is below the level at which lactate is formed and corresponds to a heart rate variation of between 3 to 8 ms, and wherein the recovery exercise reduces the amount of lactate in the body.

2. A method according to claim 1, wherein said threshold value of the heart rate is specified by means of a fitness parameter or fitness parameters that represent the physical condition of the person to be measured.

3. A method according to claim 2, wherein the fitness parameter, representing the person'"'"'s physical condition and used for specifying the threshold value of the heart rate, is the person'"'"'s maximal oxygen uptake.

4. A method according to claim 2, wherein the person'"'"'s physical condition needed to specify the threshold value of the heart rate belongs to one or more classes in a fitness classification comprising two or more classes.

5. A method according to claim 4, wherein the fitness classification comprises two or more of the following classes:

good, average, poor.

6. A method according to claim 2, wherein the person'"'"'s physical condition needed to specify the threshold value of the heart rate is estimated by means of a neural network into which one or more of the following parameters are fed as input data:

one or more heart rate parameters, a physiological parameter or physiological parameters describing the person'"'"'s physiology, one or more stress parameters describing the exercise workload.

7. A method according to claim 3, wherein the threshold value of the heart rate is obtained by calculating about 45 to 55% of the heart rate corresponding to the person'"'"'s maximal oxygen uptake.

8. A method according to claim 1, wherein the threshold value of the heart rate is obtained by calculating about 60 to 70% of the person'"'"'s maximum heart rate.

9. A method according to claim 8, wherein the maximum heart rate is determined by measuring the heart rate that corresponds to a maximum exercise workload or by estimating it on the basis of the person'"'"'s age.

10. A method according to claim 1, wherein the heart rate variation is about 3 to 5 ms.

11. A method according to claim 1, wherein the heart rate variation represents a difference between the actual moment of the heart beat and the expected moment of the heart beat calculated from the heart rate.

12. A method according to claim 1, wherein the heart rate variation is formed as a standard deviation from a difference between the actual moment or actual moments of the heart beat and the expected moment of the heart beat calculated from the heart rate.

13. A method according to claim 1, wherein the recovery exercise is controlled based on the lactate concentration in the person'"'"'s body, wherein said body has a lactate production rate in a muscle or muscles, a lactate removal rate from said muscle or muscles, a blood volume into which said lactate from said muscle or muscles is dispersed and a threshold level of lactate concentration at which the recovery exercise can be finished.

14. A method according to claim 13, wherein the amount of lactate in the person'"'"'s body is estimated by means of physiological model, which determines the influence of the workload of the fitness exercise performed by the person on the amount of lactate in the person'"'"'s body.

15. A method according to claim 13, wherein at least the lactate production rate in a muscle, the lactate removal rate from the muscle and the blood volume into which the lactate is dispersed are used for estimating the amount of lactate.

16. A method according to claim 13, wherein the lactate concentration in the body is used for estimating a sufficient duration of the recovery exercise.

17. A method according to claim 13, wherein a sufficient duration of the recovery exercise is estimated by means of the threshold level of lactate concentration at which the recovery exercise can be finished.

18. A method according to claim 13, wherein a physiological model is implemented as a neural network into which at least one or more of the following parameters are fed as input data:

a heart rate parameter or heart rate parameters, a physiological parameter or physiological parameters describing the person'"'"'s physiology, one or more stress parameters describing the exercise workload, one or more fitness parameters describing the person'"'"'s physical condition, the person'"'"'s stress level.

19. A method according to claim 6, wherein said physiological parameter is age, weight, height or gender.

20. A method according to claim 6, wherein said stress parameter is running speed or resistance of an exercise bike.

21. A method according to claim 6, wherein said heart rate parameter is the heart rate, heart rate variation, or change rate of the heart rate.

22. A method according to claim 1, wherein the heart rate is measured by a heart rate monitor comprising a display, and wherein information needed for controlling the recovery exercise is formed by means of the heart rate monitor and the information needed to control the recovery exercise is presented on the display of the heart rate monitor.

23. A method according to claim 22, wherein the information needed to control recovery consists of one or more of the following items:

heart rate, heart rate limits, recovery time.

51. A method according to claim 18, wherein said physiological parameter is age, weight, height or gender.

52. A method according to claim 18, wherein said stress parameter is running speed or resistance of an exercise bike.

53. A method according to claim 18, wherein said heart rate parameter is the heart rate, the heart rate variation or change rate of the heart rate.

24. A heart rate measuring arrangement, comprising:

measuring means for measuring a heart rate of a person to obtain heart rate information to control a recovery exercise, wherein said person has a maximum heart rate and said heart rate has a heart rate variation, and wherein said heart rate variation is the temporal variation in heart beats around the expected moments at which the heart should beat;

forming means for forming control information from the heart rate information, wherein the forming means is a calculation unit of a heart rate monitor, and wherein the calculation unit is arranged to locate a change point of the heart rate variation from the heart rate information obtained by measuring and use said change point for forming control information, and

display means for presenting the formed control information,

wherein said person has a body, a heart, a physiology, a physical condition and a maximal oxygen uptake, wherein said body has an amount of lactate, a lactate concentration, a lactate production rate in a muscle or muscles, a lactate removal rate from the muscle or muscles, a blood volume into which the lactate from the muscle or muscles is dispersed and a threshold level of the lactate concentration at which the recovery exercise can be finished, wherein the heart has a heart beat having an actual moment or actual moments and an expected moment, wherein the calculation unit is arranged to control the recovery exercise so that it is performed at a heart rate or at heart rates below a threshold value of the heart rate, wherein the threshold value of the heart rate is below the level at which lactate is formed and corresponds to a heart rate variation of between 3 to 8 ms, and wherein the recovery exercise reduces the amount of lactate in the body.

25. A heart rate measuring arrangement according to claim 24, wherein the control information comprises a duration of the recovery exercise.

26. A heart rate measuring arrangement according to claim 24, wherein the heart rate measuring arrangement comprises a memory for storing the heart rate information.

27. A heart rate measuring arrangement according to claim 24, wherein the measuring means comprise an electrode belt for measuring the heart rate, the heart rate measuring arrangement further comprising a receiver unit, which comprises forming means and display means.

28. A heart rate measuring arrangement according to claim 27, wherein the display means is the display of the receiver unit.

29. A heart rate measuring arrangement according to claim 24, wherein the heart rate measuring arrangement is a one-piece wrist-worn heart rate monitor.

30. A heart rate measuring arrangement according to claim 24, wherein the calculation unit is arranged to calculate that the threshold value of the heart rate is 45 to 55% of the heart rate corresponding to the person'"'"'s maximal oxygen uptake.

31. A heart rate measuring arrangement according to claim 24, wherein the calculation unit is arranged to calculate that the threshold value of the heart rate is 60 to 70% of the person'"'"'s maximum heart rate.

32. A heart rate measuring arrangement according to claim 31, wherein the calculation unit is arranged to use the heart rate corresponding to a maximum exercise workload as the maximum heart rate or the heart rate estimated based on the person'"'"'s age.

33. A heart rate measuring arrangement according to claim 24, wherein the calculation unit is arranged to use about 4 ms as the predetermined threshold value of the heart rate variation.

34. A heart rate measuring arrangement according to claim 24, wherein the heart rate variation describes a difference between the actual moment of the heart beat and the expected moment of the heart beat that can be calculated from the heart rate.

35. A heart rate measuring arrangement according to claim 24, wherein the calculation unit is arranged to form heart rate variation as a standard deviation from a difference between the actual moment or actual moments of the heart beat and the expected moment of the heart beat that can be calculated from the heart rate.

36. A heart rate measuring arrangement according to claim 24, wherein the calculation unit comprises a mathematical model which is arranged to provide an output parameter value or output parameter values for forming the control information in the calculation unit in response to the value of one or more input parameters.

37. A heart rate measuring arrangement according to claim 36, wherein the model is arranged to receive a heart rate parameter or heart rate parameters as its input parameter or input parameters and provide the amount of lactate in the body as the output parameter value.

38. A heart rate measuring arrangement according to claim 37, wherein the model is arranged to use one or more fitness parameters that describe the person'"'"'s physical condition for estimating the amount of lactate.

39. A heart rate measuring arrangement according to claim 38, wherein the fitness parameter is the person'"'"'s maximal oxygen uptake.

40. A heart rate measuring arrangement according to claim 36, wherein the mathematical model is arranged to receive one or more of the following parameters as input data:

one or more physiological parameters describing the person'"'"'s physiology, one or more stress parameters describing an exercise workload.

41. A heart rate measuring arrangement according to claim 36, wherein the mathematical model is arranged to estimate the amount of lactate in the person'"'"'s body on the basis of a stress level experienced by the person during the fitness exercise.

42. A heart rate measuring arrangement according to claim 36, wherein the mathematical model is arranged to estimate the amount of lactate in the person'"'"'s body by means of one or more of the following items:

the lactate production rate in a muscle, the lactate removal rate in the muscle and the blood volume into which the lactate is dispersed.

43. A heart rate measuring arrangement according to claim 24, wherein the calculation unit is arranged to use the lactate concentration in the body in forming of control information for the recovery exercise.

44. A heart rate measuring arrangement according to claim 24, wherein the calculation unit is arranged to estimate a sufficient duration for the recovery exercise by means of the threshold level of the lactate concentration at which the recovery exercise can be finished.

45. A heart rate measuring arrangement according to claim 36, wherein the mathematical model is a neural network.

46. A heart rate measuring arrangement according to claim 45, wherein the neural network is trained on the basis of user information collected from a large number of users.

47. A heart rate measuring arrangement according to claim 45, wherein weighting coefficients between neurons used in the training of the neural network have been specified by means of feedback utilizing the output parameter value or the output parameter values.

48. A heart rate measuring arrangement according to claim 40, wherein said physiological parameter is age, weight, height or gender.

49. A heart rate measuring arrangement according to claim 40, wherein said stress parameter is running speed or resistance of an exercise bike.

50. A heart rate measuring arrangement according to claim 37, wherein said heart rate parameter is the heart rate, the heart rate variation or the change rate of the heart rate.