在冠状动脉心脏病患者的有氧训练后V̇+O2峰值变化的决定因素
Axel Girault1,2, Pierre-Marie Leprêtre2,3, Lukas-Daniel Trachsel4
1Preventive medicine and physical activity Center (ÉPIC), Montreal Heart Institute, Université de Montréal, Montréal, Canada.
International journal of sports medicine
|January 24, 2024
概括
基于运动的心脏康复改善冠心病患者的氧气吸收峰值. 高响应者表现出增强的呼吸和循环功能,这表明周围和呼吸系统的适应是提高运动能力的关键.
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 康复医学 康复医学 康复医学
背景情况:
- 冠心病 (CHD) 患者经常经历运动能力的降低.
- 基于运动的心脏康复 (ECR) 是管理心脏病的基石.
- 了解对ECR的生理适应对于优化患者治疗结果至关重要.
研究的目的:
- 在心血管疾病患者的ECR之后,确定影响氧气吸收峰值 (VO2峰值) 变化的通风和循环因素.
- 根据患者对ECR的反应对患者进行分类,并分析潜在的生理机制.
- 阐明中央和外围适应在改善ECR后运动能力方面的作用.
主要方法:
- 82名心肺病患者在3个月的ECR计划之前和之后接受了心肺运动测试 (CPET).
- 测量包括VO2峰值,每分钟通风 (VE),心脏输出 (Qc) 和氧气吸收效率斜率 (OUES).
- 根据VO2峰值变化,患者被分为非响应者 (NR),低响应者 (LR),中度响应者 (MR) 或高响应者 (HR).
主要成果:
- 44%的患者被归类为HR,显示VO2峰值显著增加,与升高的VE和动脉静脉氧差异 (C(a-v ̄) 有关O2).
- 在MR患者中,VE和Qc的增加.
- 在LR和NR患者中,VE和C[a-v]O2的降低,但Qc的增加.
结论:
- 外周和呼吸道适应,而不是仅仅是中央适应,似乎是心脏病患者在ECR后VO2峰值改善的主要驱动因素.
- 根据个体患者的反应量身定制康复策略可能会提高ECR的有效性.
- 对外围和通风系统适应的具体机制进行进一步的研究是有必要的.
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