Exercise load measuring device

• US 20090018405A1
• Filed: 12/17/2007
• Published: 01/15/2009
• Est. Priority Date: 07/13/2007
• Status: Abandoned Application

• Current Assignee: Astem Incorporated (Forest Holdings Incorporated)
• Original Assignee: Astem Incorporated (Forest Holdings Incorporated)
• Inventors: Yokoyama, Yutaka, Chitose, Yukio, Katsumura, Toshihito, Okazaki, Katsumi, Suzuki, Hikaru, Watanabe, Ryu, Kime, Ryotaro
• Application Number:
  US12/002,345
• Publication Number:
  US 20090018405A1
• Time in Patent Office: Days
• US Class Current: 600/301
• 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 5/1455 using optical sensors, e.g. spectral photometrical oximeters

Abstract

There is provided an exercise load measuring device that can measure states of metabolism during exercise. The exercise load measuring device includes: a hemoglobin detecting portion 11 that includes a light emitting portion 111 that outputs near infrared lights having two wavelength, and two light receiving portions 112-1 and 112-2 that detect intensity of the near infrared lights and are placed at different distances from the light emitting portion, and detects hemoglobin concentration in muscle tissue of a subject; a heart rate detecting portion 12 that includes a light emitting portion 121 and a light receiving portion 122 and detects heart rate of the subject; and a main device 13, wherein the main device 13 includes an arithmetical operation portion 131 that arithmetically operates metabolic superiority, a display portion 132 that displays the metabolic superiority or the like, a storage portion 133 that stores arithmetical operation expressions, profile data of the subject, or the like, an input portion 134 that inputs data, and a warning portion 135 that issues a warning when a state where saccharometabolism is superior to lipid metabolism is continued for a certain time, and arithmetically operates metabolic superiority during exercise from oxygenated hemoglobin concentration, deoxygenated hemoglobin concentration, the heart rate, and weight and age of the subject.

Claims

1. An exercise load measuring device comprising:

hemoglobin measuring means for measuring intensity data of light having passed through muscle tissue required for arithmetically operating oxygenated hemoglobin concentration and deoxygenated hemoglobin concentration in the muscle tissue of a subject;

heart rate measuring means for obtaining data required for arithmetically operating heart rate of the subject; and

a main device that includes input means of weight and age of the subject, arithmetically operates the oxygenated hemoglobin concentration and the deoxygenated hemoglobin concentration from the light intensity data, and arithmetically operates a load during exercise, metabolic superiority, a lipid metabolism speed, or an amount of lipid metabolism from the oxygenated hemoglobin concentration, the deoxygenated hemoglobin concentration, the heart rate, the weight, and the age.

2. The exercise load measuring device according to claim 1, wherein the hemoglobin measuring means includes a light emitting portion that outputs near infrared lights having two wavelengths, and two light receiving portions that detect intensity of the near infrared lights having passed through fat tissue and the muscle tissue of the subject and are placed at different distances from the light emitting portion,

the heart rate measuring means includes a light emitting portion that emits near infrared light having a wavelength that passes through the blood, and a light receiving portion that receives the near infrared light having passed through the blood, and

the main device includes the input means of a thickness of a fat layer between the hemoglobin measuring means and the muscle tissue, obtains the oxygenated hemoglobin concentration and the deoxygenated hemoglobin concentration based on hemoglobin concentration data measured by the hemoglobin measuring means and the fat layer thickness, and arithmetically operates the lipid metabolism speed from the oxygenated hemoglobin concentration, the deoxygenated hemoglobin concentration, the heart rate, and the weight and the age of the subject.

3. The exercise load measuring device according to claim 1, wherein the main device includes an arithmetical operation portion that arithmetically operates the oxygenated hemoglobin concentration and the deoxygenated hemoglobin concentration based on the hemoglobin concentration data and the fat layer thickness, and arithmetically operates a ratio between saccharometabolism and lipid metabolism, that is, metabolic superiority, a display portion that displays the metabolic superiority or the like, a storage portion that stores arithmetical operation expressions, profile data of the subject, or the like, an input portion that inputs the profile data of the subject or the like, and a warning portion that issues a warning when a state where saccharometabolism is superior to lipid metabolism is continued for a certain time.

4. The exercise load measuring device according to claim 1, wherein the hemoglobin measuring means includes a light emitting portion that outputs near infrared lights having two wavelengths, and two light receiving portions that detect intensity of the near infrared lights having passed through fat tissue and the muscle tissue of the subject and are placed at different distances from the light emitting portion, the heart rate measuring means includes a light emitting portion that emits near infrared light having a wavelength that passes through the blood, and a light receiving portion that receives the near infrared light having passed through the blood, and the main device includes an arithmetical operation portion that arithmetically operates the oxygenated hemoglobin concentration and the deoxygenated hemoglobin concentration based on the hemoglobin concentration data and the fat layer thickness, and arithmetically operates a ratio between saccharometabolism and lipid metabolism, that is, metabolic superiority, a display portion that displays the metabolic superiority or the like, a storage portion that stores arithmetical operation expressions, profile data of the subject, or the like, an input portion that inputs the profile data of the subject or the like, a warning portion that issues a warning when a state where saccharometabolism is superior to lipid metabolism is continued for a certain time, and input means of a thickness of a fat layer between the hemoglobin measuring means and the muscle tissue, the main device obtains the oxygenated hemoglobin concentration and the deoxygenated hemoglobin concentration based on hemoglobin concentration data measured by the hemoglobin measuring means and the fat layer thickness, and arithmetically operates the lipid metabolism speed from the oxygenated hemoglobin concentration, the deoxygenated hemoglobin concentration, the heart rate, and the weight and the age of the subject.