随机试验改善南非儿童的身体组成和微量营养素状况
Kurt Z Long1, Johanna Beckmann2, Christin Lang2
1Swiss Tropical and Public Health Institute, University of Basel, Basel, Switzerland.
American journal of preventive medicine
|February 3, 2024
概括
身体活动和多微量营养素补充剂改善了南非儿童的身体组成. 这些干预措施减少了脂肪质量和增加了肌肉质量,等微量营养素发挥了调解作用.
科学领域:
- 儿童营养学 儿童营养学
- 公共卫生干预措施 公共卫生干预措施
- 儿童肥胖症 儿童肥胖症
背景情况:
- 儿童肥胖是一个日益关注的问题,身体成分受到生活方式因素的负面影响.
- 身体活动 (PA) 和微量营养素补充是改善儿童健康的潜在策略.
- 结合的干预措施可以为学龄儿童的身体组成提供协同效益.
研究的目的:
- 确定联合促进体力活动和多微量营养素补充剂 (MMNS) 对南非学童体质组成的疗效.
- 调查微量营养素状况是否介导这些干预措施对身体组成的影响.
主要方法:
- 一个纵向集群随机对照试验,涉及1,304名6-12岁儿童在南非Gqeberha.
- 参与者被随机分为四组:PA,MMNS,PA + MMNS和安慰剂对照.
- 身体成分 (脂肪质量和无脂肪质量) 和微量营养素度在基线,9个月和21个月使用潜伏生长曲线模型进行评估.
主要成果:
- 在9个月后,MMNS组显示出增加的无脂肪质量轨迹.
- 无论是PA还是MMNS的干预都显示出对无脂肪质量的积极间接影响,通过9个月和21个月的度变化来调解.
- 9个月后,PA组表现出减少脂肪质量的轨迹,同时也观察到的介导作用.
结论:
- 基于学校的体育活动促进和多微量营养素补充直接改善儿童的身体组成.
- 这些干预措施还通过微量营养素状况的积极变化来间接提高身体成分.
- 联合PA和MMNS干预措施代表了管理学龄人群体质组成的有希望的策略.
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