墨西哥青少年体育活动与骨矿物质含量和瘦肉量之间的关系
Edgar Denova-Gutiérrez1, Desiree López-González2, Patricia Clark2
1Dirección de Nutrición, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
概括
身体活动对青少年的骨矿物质含量和瘦肉量产生积极影响. 较高的坦纳阶段显示出更强的关系,表明青春期以后对骨健康有好处.
科学领域:
- 儿科内分泌学 儿科内分泌学
- 运动科学 运动科学 运动科学
- 人体生理学 人体生理学
背景情况:
- 骨的机械环境和体力活动对于骨和肌肉质量至关重要.
- 高强度的体力活动可能会增强骨矿物质含量和瘦肉量关系.
- 青少年的发展,包括性别和青春期的成熟度,影响了这些关联.
研究的目的:
- 检查墨西哥儿童和青少年的骨矿物质含量和瘦肉量之间的关系.
- 调查休时间体育活动对这些身体组成指标的影响.
- 确定性别和青春期阶段 (坦纳阶段) 如何改变这些关系.
主要方法:
- 使用"墨西哥儿童和青少年身体组成参考值"的数据进行横截面研究.
- 月球iDXA用于全身和四肢骨矿物质含量和瘦肉量测量.
- 经过验证的调查问卷评估了休时间的体力活动水平;用于统计分析的ANOVA和ANCOVA.
主要成果:
- 在所有Tanner阶段和体力活动水平中发现了骨矿物质含量和瘦肉量之间显著的积极关系.
- 这些关系的截断在晚年青春期 (坦纳阶段3-5) 与早期阶段 (1-2) 相比,在两种性别中都显著高.
- 这些发现无论评估的具体类型的体育活动如何,都是如此.
结论:
- 休时间的体力活动和青春期 (坦纳阶段) 显著影响骨矿物质含量和瘦肉质量关系.
- 在青春期从事体育活动可能会对骨健康产生好处,特别是在晚年青春期发育过程中.
- 结果强调了考虑发展阶段和身体活动在优化青少年骨健康方面的重要性.
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