高强度间歇训练和中等强度连续训练,用于年轻肥胖女性的心室动脉合 (VAC)
Caroline Ferraz Simões1,2, Rogério Toshiro Passos Okawa1,3, João Carlos Locatelli1,4
1Research Group on Systemic Arterial Hypertension, Arterial Stiffness and Vascular Aging, Maringa, Brazil.
高强度间歇训练 (HIIT) 和中等强度持续训练 (MICT) 在肥胖女性中都改善了心室动脉合 (VAC). 然而,只有HIIT显著增强了弹性衍生的VAC测量,这表明PWV/GLS可能是一个更敏感的指标.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 肥胖问题研究研究
背景情况:
- 肥胖与腹腔动脉合 (VAC) 障碍有关,这是心血管健康的关键决定因素.
- 了解不同运动方式对VAC的影响对于开发对肥胖人口有效干预措施至关重要.
研究的目的:
- 为了比较8周高强度间歇训练 (HIIT) 与中等强度持续训练 (MICT) 对年轻肥胖女性的VAC的影响.
- 评估两种不同的方法来评估VAC:脉冲波速度/全球纵向应变 (PWV/GLS) 和动脉/心室弹性 (Ea/Ees).
主要方法:
- 24名肥胖女性参加了一个监督的8周有氧训练计划,随机分配到HIIT (n=11) 或MICT (n=13).
- HIIT涉及4分钟间隔的85%-95%最大心率 (HRmax);MICT涉及41分钟连续运动的65%-75%HRmax.
- 使用PWV/GLS和Ea/Ees的比率来测量VAC.
主要成果:
- 无论是HIIT还是MICT都显著改善了PWV/GLS比率,表明增强了VAC.
- 只有HIIT导致了Ea/Ees比率的显著降低,这表明VAC的更大改善.
- 在PWV/GLS和Ea/Ees的相对变化之间发现了强烈的相关性,突出了它们的相互联系.
结论:
- 无论是HIIT还是MICT都有效地改善了年轻肥胖女性的VAC,用PWV/GLS比率来衡量.
- 通过弹性衍生的Ea/Ees比率来评估,HIIT在VAC上表现出更好的效果.
- 与Ea/Ees相比,PWV/GLS比率可能是一个更敏感和更完整的标志物,用于检测运动引起的VAC改善.
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