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相关概念视频

Alterations in Respiration II01:30

Alterations in Respiration II

838
There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
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Other Factors Affecting Respiration Centers01:17

Other Factors Affecting Respiration Centers

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Breathing is primarily an involuntary activity regulated by the brainstem respiratory centers. However, it can also be consciously controlled, allowing us to hold our breath or take deeper breaths when needed. This voluntary control is facilitated by the cerebral motor cortex, which bypasses the medullary centers to stimulate the respiratory muscles directly.
However, the ability to hold one's breath voluntarily is not limitless. When the CO2 concentration in the blood reaches a critical...
788
Physical Assessment of the Respiratory Tract II: Inspection01:27

Physical Assessment of the Respiratory Tract II: Inspection

247
Physical assessment of the respiratory tract through inspection is a crucial step in understanding the patient's respiratory health. It provides insights into the functioning of the respiratory system, the musculoskeletal structure, and even the patient's nutritional status. This comprehensive approach involves observing several vital aspects: chest configuration, breathing patterns, respiratory rates, skin color, and use of accessory muscles.
Chest Configuration
The chest configuration...
247
Factors Affecting Respiration01:24

Factors Affecting Respiration

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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:
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Respiratory Volumes and Capacities I01:26

Respiratory Volumes and Capacities I

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Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
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Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

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Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
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相关实验视频

Updated: Jun 19, 2025

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
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作为对身体活跃的成年人的支气管收缩反应的呼吸模式变化.

John W Dickinson1, Carol M E Smyth1, Samantha L Winter2

  • 1School of Sport and Exercise Sciences, University of Kent, Canterbury, Kent, UK.

The Journal of asthma : official journal of the Association for the Care of Asthma
|July 26, 2024
PubMed
概括
此摘要是机器生成的。

光电子胸膜扫描 (OEP) 可以识别与运动诱导的支气管收缩 (EIB) 相关的不同的呼吸模式. 这项技术将EIB呼吸与健康个体以及支气管收缩和恢复阶段区分开来.

关键词:
呼吸模式障碍 呼吸模式障碍运动就是炼身体.阶段角是相位的角度.呼吸系统评估 呼吸系统评估

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科学领域:

  • 呼吸系统生理学 呼吸系统生理学
  • 生物力学 生物力学
  • 医疗技术 医疗技术 医学技术

背景情况:

  • 运动诱导的支气管收缩 (EIB) 在体力活动期间显著影响呼吸机制.
  • 精确评估呼吸模式对于理解和管理EIB至关重要.
  • 光电子胸膜扫描 (OEP) 提供了一种非侵入性方法来量化胸壁运动.

研究的目的:

  • 评估光电子胸膜学 (OEP) 在区分运动诱导支气管收缩 (EIB) 特定的呼吸模式方面的能力.
  • 为了比较带有和没有EIB的个体之间的呼吸模式.
  • 为了区分支气管收缩期间的呼吸模式与EIB患者的康复.

主要方法:

  • 参与者包括健康的个人 (n=47) 和那些通过Eucapnic自愿性高呼吸测试识别的EIB (n=10).
  • 使用89个标记器和11个摄像头的100赫兹运动捕捉系统收集了OEP数据.
  • 分析了呼吸模式,以发现区域贡献,时间和分区间的相位差异.

主要成果:

  • 胸和肩膀运动之间的阶段差异 (RCpRCa-阶段,RCaS-阶段,RCpS-阶段) 在支气管收缩期间与EIB患者的休息相比发生了显著的变化 (p <0.05).
  • 在支气管收缩后观察到更大的异步和延迟的腹部肋骨运动.
  • 在EIB组中,RCpS-Phase在所有条件 (休息,支气管收缩后,吸入器后) 中显示出显著的差异 (p < 0.05).

结论:

  • 光电子充气镜 (OEP) 有效地描述了与 EIB 相关的呼吸模式.
  • OEP可以区分与EIB相关的呼吸异常与休息时健康个体的呼吸异常.
  • 在EIB活动期间,OEP为评估呼吸系统变化提供了有价值的工具.