Exercise workout support device

• US 6,241,684 B1
• Filed: 02/02/1998
• Issued: 06/05/2001
• Est. Priority Date: 04/08/1996
• Status: Expired due to Term

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Amano, Kazuhiko, Ishiyama, Hitoshi, Uebaba, Kazuo
• Primary Examiner(s): Winakur, Eric F.
• Assistant Examiner(s): ASTORINO, MICHAEL C
• Application Number:
  US08/973,267
• Time in Patent Office: 1,219 Days
• Field of Search: 600/300-301, 600/481-485, 600/500-503, 600/529-538, 128/897-899
• US Class Current: 600/531
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/222 combined with detection or measurement of physiological parameters, e.g. heart rate
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
• CPC Class Codes: A61B 5/7257 using Fourier transforms
• CPC Class Codes: A61B 5/726 using Wavelet transforms

Abstract

A device is provided, which is capable of determining the maximum oxygen uptake quantity without the restriction of a large device or requiring troublesome operations to be carried out. The device displays the upper and lower limit values for the pulse rate corresponding to an appropriate exercise intensity, and realizes in a wireless manner by means of optical communications the sending and receiving of information such as pulse wave signals to and from an information processing device which processes pulse wave information. The device is provided with a pulse wave detector 101 for detecting the test subject s pulse waveform; an FFT processor 103 for determining the test subject s heartbeat rate from the pulse waveform; a body motion detector 104 for detecting body motion when the test subject is running; an FFT processor 106 for determining the pitch from body motion during running by the test subject; exercise intensity calculator 108 for determining pitch, the test subject s stride, and the exercise intensity from body motion during running; and a nomogram recorder 109 for recording the relationship indicated by an Astrand-Ryhming nomogram, and determining the maximum oxygen uptake quantity from the heart rate and exercise intensity. The obtained maximum oxygen uptake quantity is divided by the test subject s body weight, to calculate the maximum oxygen uptake quantity per unit body weight. Next, the maximum oxygen uptake quantity and pulse according to sex are determined, and the pulse rate is multiplied by the upper and lower limit value coefficients, to determine the upper limit value UL and the lower limit value LL for the pulse rate.

Claims

1. A maximum oxygen intake quantity estimating device incorporated in a portable article carried by a test subject comprising:

exercise intensity detecting means for detecting an exercise intensity of the test subject;

beat rate detecting means for detecting a beat rate of the test subject;

recording means for recording in advance a relationship of a maximum oxygen intake quantity corresponding to exercise intensity and beat rate; and

calculating means for determining the maximum oxygen intake quantity corresponding to the beat rate detected by said beat rate detecting means and exercise intensity from the relationship of the maximum oxygen intake quality stored in said recording means.

2. A maximum oxygen intake quantity estimating device according to claim 1, further comprising:

input means for inputting

(1) at least one of body weight and stride of the test subject, and

(2) body height of the test subject; and

pitch detecting means for detecting a running pitch of the test subject;

wherein, said exercise intensity detecting means defines a product of one of an input stride value and a stride value determined from said body height, and the running pitch detected by said pitch detecting means as distance run, and detects as said exercise intensity a value obtained by multiplying said product by the body weight input by said input means and converting to a per unit time value.

3. A maximum oxygen intake quantity estimating device according to claim 2, further comprising:

altitude measuring means for measuring altitude at least at a first time and a second time;

wherein, said exercise intensity detecting means determines a slope from the detected altitude difference of the first time and the second time, and revises the exercise intensity by correcting the stride according to said slope.

4. A maximum oxygen intake quantity estimating device according to claim 1, further comprising notifying means for prompting the test subject to increase exercise intensity.

5. A maximum oxygen intake quantity estimating device according to claim 1, further comprising:

input means for inputting a body weight of the test subject and and one of a body height and a stride of the test subject;

pitch detecting means for detecting a running pitch of the test subject; and

notifying means for prompting the test subject to increase exercise intensity;

wherein said exercise intensity detecting means defines a product of one of an input stride value, and a stride value determined from the body height, and a detected pitch as a distance run by the test user, and detects as the exercise intensity a value obtained by multiplying said product by the body weight and converting to a per unit time value, and revises the exercise intensity by correcting stride to match the detected pitch.

6. A maximum oxygen uptake quantity estimating device according to claim 1, further comprising means for recording the measured maximum oxygen intake quantity over a specific period of time, and notifying the user of change in said maximum oxygen uptake quantity.

7. A portable pulse wave measuring device which is incorporated in a portable device, having a pulse wave detecting means for detecting a pulse wave in the body, and which sends and receives information including said pulse wave to and from an information processing device provided external to said portable device, said portable pulse wave measuring device comprising:

communications means for transferring said pulse wave, subtracting a body motion component from said pulse wave and relaying pulse wave information obtained from said pulse wave to said information processing device by optical signals.

8. A portable pulse wave measuring device according to claim 7, wherein said communications means comprises a connector means which can attach in a freely releasable manner to one of a connector member in which said communication means is formed and a connector member in which a transmitter is formed which transmits said pulse wave information to said information processing device.

9. A portable pulse wave measuring device according to claim 7, wherein said communications means comprises a connector means which can attach in a freely releasable manner to a connector member in which said communication means and said transmitter for transmitting said pulse wave information to said information processing device are formed in a unitary manner.

10. A portable pulse wave measuring device according to claim 8 or claim 9, wherein said communications means comprises a receiving element which is formed in a unitary manner with said transmitter for receiving information sent from said information processing device by optical signals.

11. A portable pulse wave measuring device according to claim 7, wherein:

said pulse wave detecting means comprises pulse wave sending means for sending said pulse wave by optical signals; and

said communications means comprises connector means which can attach in a freely releasable manner to a connector member in which a receiving element which receives said pulse wave through optical signals and a transmitter which transmits said pulse wave information to said information processing device are formed in a unitary manner.

12. A portable pulse wave measuring device according to claim 11, wherein said receiving element receives information sent in a wireless manner by means of an optical signal from said information processing device.

13. A portable pulse wave measuring device according to claim 12, wherein said optical signal is near-infrared light, and said receiving element has a filter for blocking visible light from said optical signal, and a light receiving element for near-infrared rays, which receives the optical signals which have passed through said filter.

14. A portable pulse wave measuring device according to claim 9, or claim 11, wherein said connector member is fixed in place to said connector means.

15. An exercise workout support device comprising:

recording means for recording relationship of correspondence between maximum oxygen intake quantity and pulse rate;

input means for inputting the maximum oxygen intake quantity estimated based on lactic acid threshold value;

read out means for reading out pulse rate corresponding to said input maximum oxygen uptake quantity from said recording means;

correcting means for correcting said read out pulse rate from said readout means based on at least one of an age of a user, a surrounding temperature and a desired exercise intensity;

calculating means for calculating upper and lower limits centered about said corrected pulse rate; and

notifying means for notifying a test subject of said upper limit and said lower limit,

wherein said maximum oxygen uptake quantity is estimated based on lactic acid threshold value.