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在超重和瘦的青少年中补偿快餐的能量摄入量
Cara B Ebbeling1, Kelly B Sinclair, Mark A Pereira
1Division of Endocrinology, Department of Medicine, Children's Hospital, Boston, Mass 02115, USA.
JAMA
|June 17, 2004
概括
超重的青少年消耗更多的快餐,与瘦身的青少年相比,他们不太可能弥补其高能量摄入量. 这种过度消费有助于敏感个体的体重增加.
科学领域:
- 儿童营养学 儿童营养学
- 肥胖问题研究研究
- 行为科学 行为科学
背景情况:
- 快餐消费量的增加与儿童肥胖流行病相关.
- 快餐消费可以促进积极的能量平衡,导致体重增加.
- 尽管经常食用快餐,但为什么有些孩子仍然保持瘦身的原因尚不清楚.
研究的目的:
- 调查是否超重的青少年比瘦的青少年更容易受到快餐消费的不良影响.
- 测试身体体重状况影响快餐能量摄入的假设.
主要方法:
- 研究1:青少年在食品院的环境中吃了一顿"超大"的快餐.
- 研究2:在自由生活条件下评估了4天的能量摄入量 (2有快餐,2没有快餐).
- 参与者包括13至17岁的超重 (n=26) 和瘦 (n=28) 青少年;超重的定义是BMI超过第85个百分点.
主要成果:
- 在研究1中,超重的青少年从快餐中消耗的能量明显高于瘦身的青少年 (1860比1458卡路里).
- 在第二项研究中,超重的青少年在快餐日消耗的总能量显著增加 (+409千卡/日),相比于非快餐日.
- 瘦身的青少年在快餐和非快餐日之间的能量摄入量没有显著差异.
结论:
- 青少年,特别是超重的青少年,倾向于过度消费快餐.
- 超重的青少年不太能够通过调整后来的食物消费来弥补快餐的高能量摄入量.
- 这些发现表明,超重的青少年更容易受到快餐增加体重的影响.
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