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相关概念视频

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

14
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Assessment of the Cardiovascular System III: Palpation01:27

Assessment of the Cardiovascular System III: Palpation

369
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
369
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

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Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs but also impacts other areas, such as the arms, thereby impairing overall circulation and organ function.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty deposits inside the arterial...
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Cardiovascular System Abnormal Findings I: Inspection and Palpation01:29

Cardiovascular System Abnormal Findings I: Inspection and Palpation

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In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
Abnormal findings observed during an inspection
430
Pathophysiology of Cardiac Performance01:29

Pathophysiology of Cardiac Performance

694
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
694
Peripheral Artery Disease IV: Nursing Management01:26

Peripheral Artery Disease IV: Nursing Management

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 The nursing management of a patient with peripheral artery disease (PAD) begins with a thorough assessment of the patient’s health history and clinical manifestations.AssessmentHealth History: Evaluate the patient’s history of hypertension, hyperlipidemia, family history of cardiovascular issues, and lifestyle factors such as dietary patterns, smoking, and physical activity.Physical Examination:Assess the affected extremity for decreased or absent peripheral pulses,...
12

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相关实验视频

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Non-invasive Assessment of Microvascular and Endothelial Function
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性能上的外围限制:肌肉毛细化.

Ylva Hellsten1, Lasse Gliemann1

  • 1The August Krogh Section for Human Physiology, Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark.

Scandinavian journal of medicine & science in sports
|September 28, 2023
PubMed
概括
此摘要是机器生成的。

肌肉毛细化,肌肉中的小血管网络,对于运动表现至关重要. 增强的毛细血管网络改善了氧气和营养物质的输送,可能会提高运动能力.

科学领域:

  • 运动生理学和体育科学.
  • 血管生物学和血管生成.
关键词:
毛细管是毛细管的一种形式.运动训练 运动训练 运动训练平均运输时间 平均运输时间提取氧气 提取氧气

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  • 骨肌肉的代谢和功能.
  • 背景情况:

    • 肌肉的性能依赖于高效的氧气和基质输送,以及废物清除,主要是通过毛细血管.
    • 肌肉毛细化影响扩散条件,影响传输时间,表面积和扩散距离,可能限制性能.
    • 运动训练增强了毛细血管密度,与精英运动员相比,未经训练的个人更快地发生适应.

    结论:

    • 肌肉毛细化是影响运动期间氧气和葡萄糖吸收的关键因素.
    • 了解血管新生和训练特定的适应对于优化毛细血管生长至关重要.
    • 未来的研究应该专注于建立毛细血管和运动表现之间的直接因果关系.