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BIOLOGICAL INFORMATION MEASUREMENT DEVICE, BIOLOGICAL INFORMATION MEASUREMENT METHOD, AND BIOLOGICAL INFORMATION MEASUREMENT PROGRAM meetings

Foreign code F210010282
File No. (S2019-0366-N0)
Posted date Jan 28, 2021
Country WIPO
International application number 2020JP016762
International publication number WO 2020213689
Date of international filing Apr 16, 2020
Date of international publication Oct 22, 2020
Priority data
  • P2019-078637 (Apr 17, 2019) JP
Title BIOLOGICAL INFORMATION MEASUREMENT DEVICE, BIOLOGICAL INFORMATION MEASUREMENT METHOD, AND BIOLOGICAL INFORMATION MEASUREMENT PROGRAM meetings
Abstract Provided are a biological information measurement device, a biological information measurement method, and a biological information measurement program which make it possible to improve the accuracy of detection of an optimal exercise intensity. In this biological information measurement device, a heartbeat counting means measures an HR value indicating the heart rate on the basis of heart rate data obtained by collecting the heartbeat of a subject during exercise, and an analysis means calculates an LF value which is an integrated value of a low-frequency component by a power spectrum analysis of a heartbeat fluctuation frequency of the heart rate data. A detection means detects an HR/LF value by dividing the HR value for the exercise intensity of the subject by the LF value. Accordingly, it is possible to obtain biological information important for health management by the biological information measurement device determining the HR/LF value as a novel index indicating sympathetic nerve activity.
Outline of related art and contending technology BACKGROUND ART
Exercise is performed for health promotion, prevention/treatment of lifestyle habits, and training. The exercise for applying a load to the body is difficult to obtain if the load (intensity) is insufficient. Also, on the contrary, excessive loads may be adversely affected on the body. In order to determine safe and effective exercise intensity, it is recommended to measure a lactic acid work area value (LT) and a ventilation work threshold value (VT) to determine the exercise intensity. However, it is difficult to spread widely because skilled techniques and expensive instruments are required to perform these measurements.
For example, Japanese Patent Document 1 discloses an exercise load measuring apparatus which enables each subject to exercise with an optimum exercise amount according to his/her physical strength or the like.
The exercise load measuring apparatus disclosed in Japanese Patent Document 1 detects a variation in heartbeat interval of a subject in an exercise state to detect the exercise load of the subject. The measuring device detects an integral value (HFpower) of a high frequency band and an integral value (LFpower) of a low frequency band from a power spectrum obtained by Fourier transformation of fluctuation of heartbeat intervals of a subject in a motion state, and detects a motion load of the subject from HFpower. The exercise intensity is detected from the ratio of the HFpower (HF value) to the LFpower (LF value), the HF value and the ratio of the LF value to the HF value are converted into an exercise index indicating the exercise load, the exercise index converted from the HF value and the exercise index converted by the ratio of the LF value to the HF value are added, and the exercise load is detected from the added exercise index.
Scope of claims (In Japanese)[請求項1]
 被測定者の運動時の拍動を採取した心拍データに基づいて心拍数を示すHR値を計測する心拍計数手段と、
 前記心拍データの心拍変動周波数をパワースペクトル解析して低周波成分の積分値であるLF値を算出する解析手段と、
 前記被測定者の運動強度に対する、前記HR値を前記LF値で除算したHR/LF値を求める検出手段とを備えた生体情報測定装置。

[請求項2]
 前記検出手段は、運動強度に対して求めたHR/LF値が予め設定された基準により急増するポイントを検出する請求項1記載の生体情報測定装置。

[請求項3]
 前記解析手段は、パワースペクトル解析による高周波成分の積分値であるHF値を算出し、
 前記検出手段は、前記被測定者の運動強度に対する、前記HF値の対数を直線近似することで求められる第1近似直線と、求めたHR/LF値の対数から直線近似した第2近似直線との第1交点を検出する請求項1または2記載の生体情報測定装置。

[請求項4]
 前記検出手段は、前記第1近似直線と、前記LF値を前記HF値で除算したLF/HF値の対数を直線近似することで求められる第3近似直線との第2交点を検出し、第1交点と第2交点とが示す運動強度の範囲を検出する請求項3記載の生体情報測定装置。

[請求項5]
 被測定者の運動時の拍動の状況を心拍計数手段により採取した心拍データに基づいて心拍数を示すHR値を計測するステップと、
 前記心拍データの心拍変動周波数を解析手段によりパワースペクトル解析して低周波成分の積分値であるLF値を算出するステップと、
 前記被測定者の運動強度に対する前記HR値を前記LF値で除算したHR/LF値を求める検出手段により検出するステップとを含む生体情報測定方法。

[請求項6]
 コンピュータを、
 被測定者の運動時の拍動を採取した心拍データに基づいて心拍数を示すHR値を計測する心拍計数手段、
 前記心拍データの心拍変動周波数をパワースペクトル解析して低周波成分の積分値であるLF値を算出する解析手段、
 前記被測定者の運動強度に対する、前記HR値を前記LF値で除算したHR/LF値を求める検出手段として機能させる生体情報測定プログラム。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • FUKUOKA UNIVERSITY
  • Inventor
  • UEHARA, Yoshinari
  • MATSUDA, Takuro
  • TANOUE, Yukiya
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN WS ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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