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相关概念视频

Pressure Relationships in Thoracic Cavity01:24

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Breathing, otherwise known as pulmonary ventilation, is the process of air movement into and out of the lungs. The main mechanisms propelling pulmonary ventilation are atmospheric pressure (Patm), intra-pulmonary (Ppul ) or intra-alveolar pressure (Palv) within the alveoli, and intrapleural pressure (Pip) within the pleural cavity.
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs...
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相关实验视频

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Combining Volumetric Capnography And Barometric Plethysmography To Measure The Lung Structure-function Relationship
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在空气位移斑膜学术中学习效应.

Paul Muntean1,2,3, Anca Popa1, Monica Miclos-Balica1,2

  • 1Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania.

Life (Basel, Switzerland)
|June 28, 2023
PubMed
概括

第一次空气位移囊成像 (ADP) 试验可能是实践运行,因为在随后的身体组成评估中可靠性得到改善. 随后的试验显示,对体脂百分比和无脂肪质量测量具有很高的可靠性.

关键词:
公司 BOD POD POD POD身体脂肪的百分比.身体体积体积体积的体积.没有脂肪的无脂肪质量.可靠性的可靠性

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科学领域:

  • 生理学 生理学 生理学
  • 人类测量学 人类测量学.
  • 生物医学工程 生物医学工程

背景情况:

  • 空气位移囊造影 (ADP) 是测量身体成分和肥胖症的常用方法.
  • 以前的研究通过重复测量证实了ADP的一般可靠性.
  • BOD POD 系统是商业上唯一可用的 ADP 设备.

研究的目的:

  • 评估学习效应对使用BOD POD系统测量身体成分可靠性的影响.
  • 为了确定最初的ADP试验是否与后来的试验相比,产生不太可靠的结果.
  • 为优化ADP测量协议提供建议.

主要方法:

  • 对105名参与者 (51名女性,54名男性) 进行了四次空气位移囊造影 (ADP) 试验.
  • 使用连续的试验对分析了测量误差: (1,2), (2,3),和 (3,4).
  • 使用标准测量误差 (SEM) 和类内相关系数 (ICC) 来量化可靠性.

主要成果:

  • 在第一对试验中,可靠性较低 (SEM=1.04% %BF,ICC=0.991),而在随后的试验中,可靠性较低 (SEM=0.71-0.66% %BF,ICC=0.996).
  • 建议第一个ADP试验是新手对象的实践试验.
  • 聚合的可靠性指数 (不包括第一试验) 显示出很高的一致性:ICC=0.996,SEM=0.70%对于%BF;ICC=0.999,SEM=0.49kg对于FFM.

结论:

  • 学习效应可以通过ADP影响身体组成评估的初始可靠性.
  • 将第一个ADP试验视为实践会话可以提高整体测量准确度.
  • 消除学习效应对于最大限度地提高ADP测量的可靠性在研究和临床环境中至关重要.