3至6岁儿童的运动氧气摄入量
Kathleen M Shuleva1, Gary R Hunter1, Donna J Hester1
1Dept. of HEPE at the University of Alabama at Birmingham, Birmingham, AL 35294, USA.
Pediatric exercise science
|August 17, 2024
概括
这项研究发现,3-4岁和5-6岁的儿童最大氧气摄入量 (V·O2max) 没有显著差异. 然而,年长的孩子在亚最大水平上表现出更好的行走经济,表明效率有所提高.
科学领域:
- 儿科运动生理学
- 评估儿童的心肺健康状况.
背景情况:
- 在幼儿中评估最大氧气摄入量 (V·O2max) 提出了独特的方法挑战.
- 在儿童早期了解心肺健康对于长期健康和运动潜力至关重要.
研究的目的:
- 为了比较幼儿 (3-4岁和5-6岁) 的两个年龄组之间的亚最大和最大氧气摄入量.
- 验证适合年龄的方法,以在学龄前儿童中获得最大的运动性能.
- 为了评估运动强度低于最大的步行经济.
主要方法:
- 22名儿童 (3-6岁) 参与了渐进式跑步机行走测试.
- 对于V̇O2max的确定标准包括氧气吸收高原,心率>195bpm和呼吸交换比率 (R) >1.00.
- 评估了测试重复测试的可靠性.
主要成果:
- 在3-4岁 (44.5毫升·公斤-1分) 和5-6岁 (44.1毫升·公斤-1分) 的孩子之间没有观察到VO2max的显著差异.
- 年龄在5-6岁的儿童在亚最大水平时表现出明显较低的相对氧气吸收,这表明增强的步行经济.
- 很高的百分比的参与者满足了建立的V̇O2max标准,表明测试是有效的.
结论:
- 开发的跑步机协议是可靠和有效的,用于评估V·O2max在3岁以下的儿童.
- 虽然最大的有氧能力是相似的,但随着年龄的增长,步行经济在幼儿时期会有所改善.
- 这些发现为儿科运动科学提供了有价值的规范性数据.
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