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相关概念视频

Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

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Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
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This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
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通过手腕穿戴的加速度计来估计内脏脂肪.

James R Williamson, Andrew Alini, Brian A Telfer

    IEEE journal of biomedical and health informatics
    |September 29, 2025
    PubMed
    概括

    身体活动 (PA) 与内脏脂肪组织 (VAT) 密切相关,这是代谢健康的关键指标. 这项研究表明,加速度计数据如何准确地估计增值税,提供对代谢健康风险的见解.

    科学领域:

    • 代谢健康 代谢健康
    • 运动生理学 运动生理学
    • 生物医学数据科学 生物医学数据科学

    背景情况:

    • 内脏脂肪组织 (VAT) 是代谢健康的关键标志物,过多的VAT与2型糖尿病和胰岛素抵抗有关.
    • 增值税是一个动态的脂肪库,受体力活动 (PA) 的影响,运动刺激其营业额.
    • 目前的增值税计量依赖于先进的成像,但从PA推断它提供了一个可扩展的替代方案.

    研究的目的:

    • 使用加速度计数据调查体力活动 (PA) 和内脏脂肪组织 (VAT) 之间的关系.
    • 开发和验证直接从PA指标估计增值税的方法.
    • 评估基于PA的增值税估计对理解代谢健康风险的潜力.

    主要方法:

    • 利用了国家健康和营养检查调查 (NHANES) 的数据 (2011-2014),包括对4883名成年人 (20-60岁) 的加速度计.
    • 采用了两种机器学习方法:使用回归的工程特征和深度神经网络 (基础和变压器模型) 来通过加速计估计增值税.
    • 纳入人口统计和体型测量共变量,以提高增值税估计的准确性.

    主要成果:

    • 工程特征和深度神经网络方法都显示了PA和增值税估计之间的显著相关性.
    • 将这两种方法与共变量结合起来,得到了最准确的增值税估计,实现了r=0.86.6的相关性.

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  • 该研究证实,习惯性体力活动水平与内脏脂肪组织之间存在强烈,可量化的关系.

    • 结论:

    • 身体活动是内脏脂肪组织水平的强有力的预测因素.
    • 加速计衍生增值税估计是评估代谢健康风险的可行方法.
    • 这种方法提供了一种非侵入性和可扩展的方法来监测代谢健康指标.