相关实验视频

Updated: May 5, 2026

MRI Mapping of Cerebrovascular Reactivity via Gas Inhalation Challenges
09:33

MRI Mapping of Cerebrovascular Reactivity via Gas Inhalation Challenges

Published on: December 17, 2014

13.9K

大胆信号的生理成分:年龄和心率变化的影响 生物反培训

Richard Song, Jungwon Min, Shiyu Wang

    bioRxiv : the preprint server for biology
    |April 28, 2025
    PubMed
    概括

    老龄化减少了自主神经系统 (ANS) 对大脑信号的影响,影响了脑血管功能. 心率变化生物反 (HRV-BF) 训练显示出恢复这些与年龄相关的变化并促进大脑健康的潜力.

    更多相关视频

    Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions08:12

    Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

    Published on: June 5, 2019

    19.7K
    Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis08:22

    Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

    Published on: April 26, 2024

    1.5K

    相关概念视频

    Factors Influencing Heart Rate01:30

    Factors Influencing Heart Rate

    The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
    Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
    5.6K
    Regulation of Heart Rates01:31

    Regulation of Heart Rates

    The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
    The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...
    6.0K
    Exercise and Cardiac Output01:17

    Exercise and Cardiac Output

    Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
    Sustained exercise increases the muscles' oxygen demand, which can be...
    3.8K
    Neural Regulation of Blood Pressure01:18

    Neural Regulation of Blood Pressure

    The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
    Baroreceptor Reflex
    Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...
    8.9K
    Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

    Cardiac Output I:Effect of Heart Rate on Cardiac Output

    Cardiac Output
    Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
    Effect of Heart Rate on Cardiac Output
    Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
    3.4K