成年患者的呼吸道肌肉功能和运动表现 患有芬坦循环的成年患者
Raquel Ladrón-Abia1, Pilar Cejudo Ramos2, Israel Valverde Pérez3
1Adult Congenital Heart Disease Unit, Hospital Universitario Virgen del Rocío, Instituto de BioMedicina de Sevilla (IBIS), Avenida Manuel Siurot s/n, 41013 Sevilla, Spain.
患有Fontan循环的成年人有减弱的运动能力,受限于诸如氧气脉冲受损和慢性质不足等因素. 定期强烈的体力活动显著改善这些患者的功能能力.
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 儿童心脏病学 儿童心脏病学
背景情况:
- 丰坦的血液循环虽然在休息时充足,但由于其独特的血液动力学,在运动期间会出现限制.
- 了解Fontan患者的运动病理生理学对于评估功能能力至关重要.
研究的目的:
- 为了全面评估成年Fontan患者 (FPs) 的运动病理生理学.
- 在运动期间识别FP中限制功能能力 (FC) 的因素.
主要方法:
- 一个单中心研究涉及37个FP (≥16年) 和19个健康对照 (HC).
- 使用循环人体表仪进行心肺运动测试 (CPET).
- 分析氧气吸收峰值 (VO2峰值),氧气吸收效率斜率 (OUES),肺功能和启发性肌肉力量.
主要成果:
- 在FP中,VO2的平均峰值为预测值的55%.
- 低VO2峰值与早期平坦/下降的氧气脉冲和慢性缺陷相关.
- 氧气吸收效率斜率 (OUES) 与VO2峰值有很强的相关性,这表明它在评估FC时的实用性.
- 在FP中观察到肺功能受损 (56.8%的轻度限制模式) 和灵感肌肉强度降低.
- 较高的体力活动水平与预测的VO2%峰值改善相关.
结论:
- 在FP的运动限制是多因素的,涉及心血管和呼吸系统的组成部分.
- 在Fontan生理学中,OUES是评估功能能力的有价值指标.
- 强烈的体力活动对FP的功能能力产生了积极的影响,尽管潜在的灵感肌肉软弱.
更多相关视频
07:09Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
00:07Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
Published on: August 24, 2019
相关概念视频
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Mechanism of Breathing III: The Accessory Muscles
The respiratory system is a complex network that relies on primary respiratory muscles like the diaphragm, but also involves accessory muscles to enhance lung expansion and airflow during both inhalation and exhalation.
Enhancing Inhalation with Accessory Muscles:
Accessory muscles such as the sternocleidomastoid, scalene, intercostal, and abdominal muscles are crucial when additional respiratory effort is required, such as during deep...
Respiratory Capacities
One key metric is the Inspiratory Capacity (IC), which represents the maximum amount of air that can be inhaled with full effort. IC is calculated by summing the tidal volume and inspiratory reserve volume, typically ranging from 2.4 to 3.6 liters.
The Functional Residual Capacity (FRC) represents the air in the...
Respiratory Volumes and Capacities
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Respiratory Volumes and Capacities I
