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在健康男性进行了为期八周的冲刺间隔训练干预后,血管适应

Paul R Nagelkirk¹, Daniel P Farrell^2,3, James R Sackett²

¹Integrative Exercise Physiology Laboratory, Ball State University, Muncie, IN, USA - prnagelkirk@bsu.edu.

The Journal of sports medicine and physical fitness

|October 28, 2024

概括

在年轻男性中,八周高强度间歇训练并没有显著改善动脉硬性或动脉内脏介质厚度. 起初的动脉硬可能会影响身体如何适应这种炼.

科学领域:

运动生理学运动生理学
心血管健康心血管健康
血管生物学血管生物学

背景情况:

众所周知,冲刺间隔训练 (SIT) 可以改善心血管风险因素.
SIT对新出现的血管健康指标 (如动脉硬度和动脉内膜厚度等) 的影响尚未得到充分证实.
关键的新兴指标包括每分钟75次的增强指数 (AIx@75),脉冲波速率 (cfPWV) 和动脉内膜介质厚度 (CIMT).

研究的目的:

评估8周SIT干预对AIx@75,cfPWV和CIMT的影响.
为了评估这些血管参数在基线,4周和8周训练时的变化.

主要方法:

18名久坐不动的男性 (24.7±5.1岁,BMI 26.7±5.8 kg/m2) 接受了为期8周的SIT,每周训练3次.
训练包括3-6次最大强度的30秒骑自行车,4.5分钟的积极恢复.
血管测量 (AIx@75,cfPWV,CIMT) 在基线,4周和8周评估;使用重复测量ANOVA和Pearson相关性分析数据.

主要成果:

在SIT8周后,AIx@75,cfPWV或CIMT没有显著变化 (P>0.05).
基线cfPWV和AIx@75与从基线到8周的各自变化呈负相关性 (P<0.05).
在整个干预期内,个体血管参数基本保持不变.

结论:

一个为期8周的SIT计划不足以在年轻,健康的男性中引发cfPWV,AIx@75或CIMT的显著减少.
动脉刚性的初始水平可能在确定血管适应SIT的过程中发挥作用.
需要进一步的研究来确定最佳的SIT协议,以改善这些特定的血管健康标志物.

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