急性动脉内血压对长椅压力的反应 在儿童中举重
Karen L Nau1, Victor L Katch1, Robert H Beekman1
1University of Michigan, Ann Arbor, MI 48109, USA.
Pediatric exercise science
|August 17, 2024
概括
孩子 孩子 孩子 孩子
科学领域:
- 儿童心脏病学 儿童心脏病学
- 运动生理学 运动生理学
- 运动医学 运动医学
背景情况:
- 了解儿童对抗力运动的心血管反应对于安全训练至关重要.
- 以前的研究主要集中在成人对举重的反应上.
- 关于儿童群体在举重运动期间的特定血压和心率动态的数据有限.
研究的目的:
- 为了研究儿童对长椅压力举重 (WL) 的动脉内血压 (BP) 和心率 (HR) 反应.
- 为了比较不同强度举重的BP和HR反应 (60-100%的一次重复最大).
- 为了确定峰值BP和HR反应是否发生在自愿疲劳时,以及它们是否独立于阻力和重复组合.
主要方法:
- 十一名儿童在60%,75%,90%,100%的一次重复最大 (1RM) 时进行了长椅压力举重到自愿疲劳.
- 在举重训练期间,大动脉的抽缩和放缩压和心率被连续测量.
- 数据分析的重点是每个提升条件和自愿疲劳时达到的峰值BP和HR值.
主要成果:
- 随着重复在每个举重条件内完成,血压和心率逐渐增加.
- 在各种条件下,缩压的峰值在162-177 mmHg之间,缩压的峰值在125-139 mmHg之间,心率的峰值在每分钟139-148之间.
- 与休息相比,举重期间的峰值BP和HR显著更高,但在不同强度条件之间没有显著差异.
- 发现儿童的相对血压反应与以前报告的成人值相似.
结论:
- 在儿童举重时,血压峰值和心率反应发生在自愿疲劳的时刻.
- 这些峰值反应似乎独立于用于达到疲劳的阻力和重复的特定组合.
- 儿童在举重时所经历的心血管应变与成年人相似,这凸显了适当的训练方案的重要性.
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