腹腔血管相互作用的性别差异与有氧能力相关
Barbara N Morrison1, Peter M Mittermaier2,3, Garth R Lester2,3
1School of Human Kinetics, Trinity Western University, CANIL Building, Rm. 115 22500 University Drive, Langley, BC, V2Y 1Y1, Canada.
Echo research and practice
|January 19, 2025
概括
最大氧气摄入量 (VO2max) 与心血管健康有关. 这项研究发现,虽然左心室质量与男性和女性的VO2max有关,但对女性来说,动脉合规性很重要,而心室放松/收缩在男性和女性之间有所不同.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 运动医学 运动医学
背景情况:
- 最大氧气摄入量 (VO2max) 是功能能力和死亡风险的关键指标.
- 已知心脏和血管对训练反应的性别特异性差异,但它们对VO2max的影响尚不清楚.
研究的目的:
- 在健康个体中,研究腹腔和血管因子之间与VO2max相关的性别特异性相互作用.
- 了解心脏结构,功能和动脉特性如何对男性和女性的有氧能力有不同的贡献.
主要方法:
- 68名健康的男性和女性 (从娱乐运动员到精英运动员) 通过循环人体测量进行了VO2max评估.
- 测量左心室 (LV) 结构和功能的静止动脉合规性和回声心脏学评估,并将其索引为身体表面积.
主要成果:
- 两性之间的VO2max是相似的,但男性的索引LV质量 (LVMi) 较高.
- 在男性中,LVMi和腹筋应变率,或末腹筋体积和腹筋应变率,预测了VO2max.
- 在女性中,LVMi,动脉合规性,缩应变率和年龄预测了VO2max,而EDVi也在单独的模型中作出了贡献.
结论:
- 左心室质量和终端透缩体积与两性的人的VO2max有关.
- 动脉合规显著导致女性的VO2max变异,但男性没有.
- 腹腔松是男性有氧能力的关键,而腹腔收缩对女性来说很重要.
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