Assessment of Autonomic Regulatory Function using Pulse Volume of the Finger Photo-plethysmogram

使用手指光电体积描记图的脉搏量评估自主调节功能

• 批准号: 10610077
• 负责人: SAWADA Yukihiro
• 金额: $ 0.51万
• 依托单位: Sapporo Medical University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10610077/
• 关键词: finger photo-plethysmogram; pulse volume; Lambert-Beer's law; sympathetic activity; finger vascular tone; cutaneous vascular resistance in the finger tip; 脈波; 心臓血管系; 自律神経調節

Normalized pulse volume (NPV) was advocated as a new measure for the assessment of finger vascular tone. Based on the optical model in the finger tip expressed by Lambert-Beer's law, NPV is expressed as ΔIィイD2aィエD2. Here, ΔIィイD2aィエD2 is the intensity of pulsatile component superimposed on the transmitted light (I). From a theoretical point of view, NPV seems to be superior to the conventional pulse volume (PV; corresponding to ΔIィイD2aィエD2). First, NPV is in direct proportion to ΔIィイD2aィエD2, which is the pulsatile to ΔVィイD2aィエD2. On the contrary, PV is only roughly in direct proportion to ΔVィイD2aィエD2. Relatedly, NPV can be processed as if it is an absolute value. Second, sensitivity of NPV against stressful stimulation is expected to be higher than that of PV. These theoretical expectations were supported experimentally using thirteen male students. First, the correlation between cutaneous vascular resistance in the finger tip (CVR) and NPV was higher than that between CVR and PV. Second, NPV decreased much more than PV during stressful tasks (mental arithmetic and mirror drawing). Some limitations of the present study were addressed, including which factors can violate the direct proportional relationship of NPV and PV to ΔVィイD2aィエD2.

标准化脉搏容积（NPV）被认为是评价手指血管张力的新指标。基于由朗伯-比尔定律表示的指尖中的光学模型，NPV表示为ΔI λ D2 a λ D2。这里，ΔI D2 a D2是叠加在透射光（I）上的脉动分量的强度。从理论上看，NPV似乎比传统的脉搏容积（PV;对应于ΔI脉搏D2 a脉搏D2）优越上级。第一，NPV与ΔI Δ D2 a Δ D2成正比，Δ I Δ D2 a Δ D2是ΔV Δ D2 a Δ D2的脉动。相反，PV仅大致与ΔV D2 a D2成正比。与此相关，NPV可以像绝对值一样处理。第二，NPV对应激刺激的敏感性预期高于PV。这些理论的预期支持实验使用十三名男学生。首先，指尖皮肤血管阻力（CVR）与NPV的相关性高于CVR与PV的相关性。第二，在压力任务（心算和画镜子）中，NPV的下降幅度远大于PV。讨论了本研究的一些局限性，包括哪些因素可能违反NPV和PV与ΔV Δ D2 a Δ D2的正比例关系。

项目成果

澤田幸展: "指尖容積脈波再訪"生理心理学と精神生理学. 17. 33-46 (1999)

Yukinobu Sawada：“重新审视指尖体积描记法”生理心理学和心理生理学 17. 33-46 (1999)。

TANAKA,G., SAWADA,Y., & YAMAKOSHI,K.: "Beat-by-beat double-normalized pulse volume derived photoplethysmographically as a new quantitative index of finger vascular tone in humans."European Journal of Applied Physiology. 81(1-2). 148-154 (2000)

田中，G.，泽田，Y.，

Tanaka, G, Sawada, Y., & Yamakoshi, K.: "Beat-by-beat double-normalized pulse volume detived photople thysmographically as a new Fuantative index of finger vascular tone in humans"European Journal of Aptied Physiology. 81. 148-154 (2000)

田中，G，泽田，Y.，

Tanaka,G.,Sawada,Y.,& Yamakoshi,K.: "Beat-by-beat double-normalized pulse volume derived photopletheysmographi cally as a new quantitative index of finger vascular tone in humans"European Journal of Applied Physiology. 81(1-2). 148-154 (2000)

田中，G.，泽田，Y.，

SAWADA,Y.: "Finger plethysmography revisited."Japanese Journal of Physiological Psychology and Psychophysiology. 17(1). 33-46 (1999)

SAWADA,Y.：“手指体积描记法的重新审视。”日本生理心理学和心理生理学杂志。