Development of appropriate prescription for health using the simultaneous telemetry method of cerebral blood flow velocity and electrocardiogram under physical exercise.

利用体育运动下脑血流速度和心电图同步遥测方法制定适当的健康处方。

• 批准号: 15500498
• 负责人: YAMAGUCHI Hisao
• 金额: $ 2.37万
• 依托单位: Tokushima Bunri University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15500498/
• 关键词: Ultrasound Doppler method; Maximum arterial blood flow velocity; Transposition of blood vessel; Doppler discrimination circuit; IC circuit; ECG telemetry; Exercise therapy; Prescription for exercise; 運動による動脈の移動量; 心電図テレメトリー; 超音波ドップラー法; ドップラー識別回路

Carotid artery blood flow velocity which reflected cerebral blood flow under physical exercise was measured by the ultrasound Doppler method, and the electrocardiogram(ECG) was measured simultaneously. Results : (1)The result of the simulation of the sound field distribution showed that the flow distribution waveform of the ultrasound probe might be considered on the assumption of the transposition of the blood vessel under exercise in order to deal with the transfer of right and left or top and bottom. (2)The crystal-oscillator circuit was solved by using IC type filter circuit and Gilbert multiplication type circuit in this by using Gilbert cellular demodulation circuit and band-pass filter for oscillation circuit in the detection circuit. (3)It was indicated that it could be applied to the early detection of cardiovascular disease from the difference the discipline person and the non-discipline person for the maximum blood flow velocity and for ECU pattern during physical exercise test. (4)It was recorded that the change of the blood flow velocity increased under increment load of exercise and that it decreases in the decrement load. However, maximum blood flow velocity component of carotid artery was almost fixed during a measuring time. It is guessed that the self-regulation of cerebral blood flow sufficiently works on this in the exercise of this degree. Through the measurement by this equipment, it was proven that large effect was not caused circulatory system including the brain in the exercise test by the total of these results. (5)It was measured that the fluctuation of arterial blood pressure and heart rate changed by change of the attitude and exercise. However, carotid artery maximum blood flow velocity under these exercise confirmed that the change with the meaning was not produced in the healthy examinee. It can be expected that the establishment of the safe prescription for health based on this knowledge is attempted.

采用超声多普勒法测量反映运动时脑血流量的颈动脉血流速度，同时测量心电图（ECG）。结果：(1)声场分布仿真结果表明，可以在运动时血管转位的假设下考虑超声探头的血流分布波形，以处理右、右运动的转移。左侧或顶部和底部。 (2)检测电路中的振荡电路采用吉尔伯特蜂窝解调电路和带通滤波器，晶体振荡器电路采用IC型滤波器电路和吉尔伯特乘法型电路解决。 (3)从体能测试中纪律者与非纪律者最大血流速度和ECU模式的差异表明可用于心血管疾病的早期发现。 (4)运动负荷增加时血流速度变化增加，运动负荷减少时血流速度变化减小。然而，颈动脉的最大血流速度分量在测量时间内几乎是固定的。推测在这种程度的练习中，脑血流的自我调节对此充分起作用。通过该设备的测量，通过这些结果的总和证明运动试验中包括大脑在内的循环系统并未受到较大影响。 (5)测量到动脉血压和心率的波动随着态度和运动的改变而变化。然而，这些运动下的颈动脉最大血流速度证实在健康受试者中没有产生具有意义的变化。可以期待基于这些知识来尝试建立健康的安全处方。

项目成果

超音波ドプラ血流速度測定の改良による漸増漸減運動負荷時の血流の動態について

关于使用改进的超声多普勒血流速度测量逐渐增加-逐渐减少运动负荷期间的血流动力学

• 发表时间: 2003
• 期刊: 体力科学 52巻・6号
• 作者: 田中 弘之;山口 久雄 外
• 通讯作者: 山口 久雄 外

A change of maximal blood flow velocity in the human arteries during involuntary postual changes.

在不自觉的体位改变过程中，人体动脉最大血流速度的变化。

• 发表时间: 2004
• 期刊: Technical Report of Institute of Electronics, Information and Communication Engineers MBE2004-46(2004-11)
• 作者: Azran;A.;Yamaguchi;H.et al.
• 通讯作者: H.et al.

リニアアレイトランスデュサーの設計シミュレーション

线性阵列换能器设计仿真

• 发表时间: 2004
• 期刊: 平成16年度電気関係学会四国支部連合大会 抄録集
• 作者: 山口 隼;山口 久雄 外
• 通讯作者: 山口 久雄 外

張 達力, 山口久雄ほか: "運動時における超音波ドプラ血流速度測定に関する理論的考察"体力科学. 52巻・5号. 652 (2003)

张大力，山口久夫等：“运动时超声多普勒血流速度测量的理论考虑”《体能科学》，第 52 卷，第 5.652 期（2003 年）。

Tiltテストを用いた非自発的姿勢変化に伴う最大血流速度の変化

使用倾斜测试与非自愿姿势变化相关的最大血流速度的变化

• 发表时间: 2004
• 期刊: 平成16年度電気関係学会四国支部連合大会 抄録集
• 作者: アズラン アズヒム;山口久雄 外
• 通讯作者: 山口久雄 外