Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Neural Regulation of Blood Pressure01:18

Neural Regulation of Blood Pressure

2.9K
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...
2.9K
Regulation of Heart Rates01:31

Regulation of Heart Rates

1.8K
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...
1.8K
Factors Influencing Heart Rate01:30

Factors Influencing Heart Rate

2.7K
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,...
2.7K
Regulation of the Cardiovascular System01:27

Regulation of the Cardiovascular System

1.1K
The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...
1.1K
Decreased pulse rate01:14

Decreased pulse rate

547
Bradycardia is a medical condition in which the heart rate is slower than normal. It occurs when the heart's natural pacemaker, the sinus node, generates slower electrical impulses than the standard rhythm. In adults, bradycardia is diagnosed when the pulse rate falls below 60 beats per minute, indicating a deviation from the normal heart rate range.
There are specific risk factors that can elevate the likelihood of developing bradycardia. Advanced age is a significant factor, with...
547
Factors Affecting Respiration01:24

Factors Affecting Respiration

5.1K
Respiration is a crucial physiological function involving exchanging oxygen (O2) and carbon dioxide (CO2) between an organism and its environment. Various factors can impact this essential process:
5.1K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Psychosocial Trajectories in Germany Across a Decade of Societal Crises.

The journals of gerontology. Series B, Psychological sciences and social sciences·2026
Same author

Long-term intake of statins or renin-angiotensin system inhibitors: associations with sarcopenia-related parameters in older people.

GeroScience·2026
Same author

The dynamic interplay of merit and appreciation in love: Variations by gender, age, and relationship duration.

The Behavioral and brain sciences·2026
Same author

Correction: Physical activity and cohabitation status moderate the link between diabetes mellitus and cognitive performance in a community-dwelling elderly population in Germany.

PloS one·2026
Same author

Reframing Expectations about aging - Physical Activity and Inclusive Reappraisal (RE-PAIR): Protocol of a randomized intervention promoting positive self-perceptions of aging and physical activity in older couples.

BMC geriatrics·2026
Same author

Old age is perceived to begin later: cross-European differences and the role of macro-level factors for the historical change in the perceived onset of old age.

The journals of gerontology. Series B, Psychological sciences and social sciences·2026
Same journal

Interplay of Oxidative Stress and Inflammatory Mechanisms in Doxorubicin-induced Cardiomyopathy.

American journal of physiology. Heart and circulatory physiology·2026
Same journal

Impact of moderate isocapnic hyperthermia on dynamic cerebral autoregulation and its directional sensitivity.

American journal of physiology. Heart and circulatory physiology·2026
Same journal

Repetitive Pressure Overload; Species Disparities, Mechanisms and Translational Relevance.

American journal of physiology. Heart and circulatory physiology·2026
Same journal

SIRT2-mediated regulation of glycolytic flux: Another brick in the wall of Gary Lopaschuk's legacy in cardiac metabolism.

American journal of physiology. Heart and circulatory physiology·2026
Same journal

Tailored anesthesia protocols for echo-based HFpEF phenotyping in C57BL6/N mice.

American journal of physiology. Heart and circulatory physiology·2026
Same journal

Desmoglein-2 Deficiency Drives Mitochondrial Morphological Remodeling in Cardiomyocytes.

American journal of physiology. Heart and circulatory physiology·2026
查看所有相关文章

相关实验视频

Updated: Jul 11, 2025

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
09:56

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

Published on: February 14, 2021

5.1K

在健康个体中,随着年龄的增长,自发巴罗反射功能的降低与性别差异有关.

Andy Schumann1, Yubraj Gupta1, Denis Gerstorf2

  • 1Lab for Autonomic Neuroscience, Imaging and Cognition, Department for Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany.

American journal of physiology. Heart and circulatory physiology
|November 10, 2023
PubMed
概括
此摘要是机器生成的。

随着年龄的增长,自发性巴罗反射敏感度 (BRS) 降低,但这种下降在男性和女性之间有所不同. 我们的发现揭示了整个生命周期内巴罗反射功能的不同变化模式,这对心血管健康有影响.

关键词:
自主神经系统自主神经系统血压 血压 血压 血压心血管功能是如何运转的心率变化的心率变化.

更多相关视频

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
14:09

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

Published on: March 21, 2013

20.8K
Author Spotlight: A Pharmacodissection Approach to Uncover Mechanisms in Cardiovascular Disease Risk Populations
08:21

Author Spotlight: A Pharmacodissection Approach to Uncover Mechanisms in Cardiovascular Disease Risk Populations

Published on: July 21, 2023

1.3K

相关实验视频

Last Updated: Jul 11, 2025

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
09:56

Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

Published on: February 14, 2021

5.1K
Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
14:09

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

Published on: March 21, 2013

20.8K
Author Spotlight: A Pharmacodissection Approach to Uncover Mechanisms in Cardiovascular Disease Risk Populations
08:21

Author Spotlight: A Pharmacodissection Approach to Uncover Mechanisms in Cardiovascular Disease Risk Populations

Published on: July 21, 2023

1.3K

科学领域:

  • 生理学 生理学 生理学
  • 心血管科学 心血管科学
  • 老年学是一门学科.

背景情况:

  • 鼓动反射对于响应血压变化而快速调整心率至关重要.
  • 已知随着年龄的增长,自发性巴罗反射灵敏度 (BRS) 的下降,但性别差异研究不足.
  • 了解这些性别差异对于心血管健康和预防策略至关重要.

研究的目的:

  • 为了研究自发巴罗反射功能标志物的与年龄相关的变化中的性别差异.
  • 在健康的男女中,分析不同年龄组的自发巴罗反射灵敏度.

主要方法:

  • 在五个年龄组的980名健康人群中记录了心血管信号.
  • 通过时间域 (斜坡) 和频率域 (LF-α,HF-α) 分析评估自发巴罗反射功能.
  • 利用一般线性模型来分析年龄和性别相互作用对巴罗反射指标的影响.

主要成果:

  • 在所有巴罗反射功能指标上观察到年龄和年龄×性别相互作用的显著影响.
  • 中年女性 (30-39岁) 显示比男性更高的BRS (心动脉倾斜,LF-α,HF-α).
  • 老年男性 (>60岁) 与老年女性相比,表现出较高的LF-α和斜率.

结论:

  • 巴罗反射功能在整个生命周期中,男性的衰退较早,但比女性的衰退更慢.
  • 观察到的性别差异可能与性激素水平与年龄相关的变化有关.
  • 研究结果强调了在心血管风险评估和预防方面需要采用性别特异性的方法.