练习血压和心率对中级运动测试的反应,与肥胖的早晨时刻型相比
Mary-Margaret E Remchak1, Jaclyn K Dosik1, Gregory Pappas1,2
1Department of Kinesiology and Health, Rutgers University, New Brunswick, New Jersey, United States.
概括
与早晨类型相比,肥胖的中间时间型成年人在运动期间表现出更高的血压和心率反应. 然而,健身水平取消了血压差异,而心率在中间时刻型中保持高.
科学领域:
- 运动生理学 运动生理学
- 时间生物学 时间生物学
- 心血管健康 心血管健康
背景情况:
- 过度的运动血压 (BP) 是心血管疾病 (CVD) 的危险因素.
- 晚上类型的人比早上类型的人有更高的心血管疾病风险.
- 中间时间型的运动BP反应,特别是那些患有肥胖的人,仍然没有得到充分的研究.
研究的目的:
- 为了比较运动BP和心率 (HR) 在早晨 (Morn) 和中间 (Int) 时型成年人之间的反应.
- 研究有氧健身 (V·o2max) 对这些反应的影响.
- 探索潜在的潜在生理差异,包括氧化的生物可用性和瘦素水平.
主要方法:
- 肥胖的成年人被分类为Morn或Int的年代型,使用晨晚问卷 (MEQ).
- 参与者进行了分级增量跑步机测试,以评估最大有氧能力 (V·o2max).
- 在各种炼阶段测量了系统性 (SBP) 和扩张性 (DBP) 血压,平均动脉压 (MAP),HR,压力产率 (RPP) 和感知劳动率 (RPE). 运动前的测量包括大动脉波形,血亚酸盐/亚酸盐,瘦素和身体成分.
主要成果:
- 与早晨的时代型相比,中间时代型表现出较低的V·o2max和血酸盐水平.
- 尽管运动前BP和身体组成相似,但Int个体在运动阶段表现出更高的DBP和MAP.
- 这些BP差异在考虑V·o2max时被取消,但Int个体的HR和RPE仍然较高. 心率恢复 (HRR) 在Morn类型中更大,独立于V̇o2max.
结论:
- 肥胖的中间时型成年人可能会对运动产生过度的血液动力学反应,其特征是高血压和高血压.
- 有氧健身 (V·o2max) 显著影响血压反应,减轻时间型之间的差异.
- 独立于健康状况的中间时间型中,HR反应的升高表明了诸如改变氧化代谢或升高的勒水平等因素的潜在贡献,这需要进一步调查它们对心血管的影响.
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