在11至16岁的孩子中,氧气吸收和体力活动的峰值
Neil Armstrong1, John Balding1, Peter Gentle1
1Physical Education Association Research Centre, School of Education, University of Exeter, Exeter, U.K. EX1 2LU.
Pediatric exercise science
|August 17, 2024
概括
很少有青少年从事足够强烈的体育活动,以有益于心血管健康. 这项研究发现,持续高心率是有限的,这表明11-16岁的孩子身体活动不足.
科学领域:
- 儿科运动科学 儿科运动科学
- 年轻人的心血管生理学
- 青少年的身体活动水平
背景情况:
- 评估青少年心肺健康和习惯性体力活动之间的关系对于了解公共健康至关重要.
- 以前的研究表明,年轻人身体活动的减少,可能会影响长期的健康结果.
研究的目的:
- 调查11至16岁青少年的峰值氧气摄入量 (V·O2),这是心肺健康的衡量标准,与客观测量的习惯性体力活动之间的相关性.
- 为了确定学生在典型的学校日和周末进行的体育活动的强度和持续时间.
主要方法:
- 在111名女孩和85名男孩中使用跑步机或自行车人体力学来评估峰值V̇O2.
- 习惯性体力活动被监测使用分钟对分钟的心率数据在学校期间的三个12小时期间.
- 分析的重点是保持特定升高水平 (≥140 bpm和≥160 bpm) 的心率持续时间.
主要成果:
- 很大一部分女孩 (50%以上) 和男孩 (三分之一) 都没有维持10分钟的时间,心率≥140次/小时.
- 周末的体力活动明显较低,超过90%的女孩和75%的男孩无法保持心率≥140次/分钟10分钟.
- 在峰值V̇O2和习惯性身体活动的心率指标之间没有发现显著的关系.
结论:
- 这些发现表明,这个年龄段的大多数青少年不从事足够强度和持续时间的体育活动,以显著挑战他们的心肺系统.
- 这种缺乏强烈的体力活动可能会对关键成长年期间心肺健康的发展和维持产生影响.
- 为了改善心血管健康结果,可能需要在年轻人中促进更有活力的体育活动.
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