青少年早期心脏功能障碍与低强度体力活动的青少年
Samuel J Burden1,2, Najmeh Zare1, Oliver J Rider3
1Department of Paediatrics University of Oxford, John Radcliffe Hospital Oxford UK.
Journal of the American Heart Association
|August 18, 2025
概括
在青少年中,低活力的体力活动 (VPA) 与左心室扩张功能 (LVDF) 的不良影响有关,独立于肥胖. 这种扩张功能障碍预测心肺呼吸能力较低,突出显示VPA.
科学领域:
- 心脏病学 心脏病学
- 儿科健康 儿科健康
- 运动生理学 运动生理学
背景情况:
- 不良的左心室扩张功能 (LVDF) 是心脏功能障碍的早期指标,随着年龄的增长而恶化,并可能导致心力衰竭.
- 在青少年中,LVDF恶化的开始和身体活动 (PA) 的影响仍然不清楚.
- 这项研究研究了青少年的LVDF和PA强度之间的关系,考虑到脂肪和心肺呼吸能力.
研究的目的:
- 评估不良LVDF与青少年身体活动 (PA) 的不同水平之间的独立关联.
- 为了比较PA对LVDF的影响与肥胖的影响.
- 为了检查由低PA引起的不良LVDF对心肺呼吸能力的影响.
主要方法:
- 127名青少年 (11-18岁) 接受了心声回声测试,以评估LVDF.
- 使用加速度计测量了7天的PA;通过BMI Z-score量化了脂肪度.
- 负面的LVDF被定义为BSA调整的隔膜早期透析组织峰值速度的Z分数<-2 .
主要成果:
- 不良的LVDF在超重 (28%) 和肥胖 (45%) 的青少年中普遍存在,特别是那些有低活力的PA (VPA) 的青少年.
- 增加的VPA显著降低了不良LVDF的几率,独立于脂肪.
- 较低的VPA (5分钟/天) 与2.4毫升/公斤/分钟较低的峰值氧气消耗因不良LVDF相比,与15分钟/天相比有因果关系.
结论:
- 青春期的低VPA独立地与不良的LVDF相关,无论肥胖程度如何.
- 青少年的LVDF受损预示着心肺呼吸能力下降.
- 强烈的体力活动对于保持年轻人健康的LVDF至关重要.
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