An assessment of obese and non obese girls' metabolic rate during television viewing, reading, and resting.
An assessment of obese and non obese girls' metabolic rate during television viewing, reading, and resting.
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DOI：
10.1016/j.eatbeh.2005.08.007
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发表时间：
2006-05-01
期刊：
影响因子：
2.8
通讯作者：
Shelton, Mary Lee
中科院分区：
文献类型：
--
作者：
Cooper, Theodore V;Klesges, Lisa M;Shelton, Mary Lee
虽然儿童肥胖与看电视有关，但具体机制尚不清楚。与看电视有关的肥胖可能与身体活动减少、食物摄入增加、代谢率降低或这些因素的组合有关。目前的研究试图确定安静休息、听故事、看被动电视节目和看主动电视节目对代谢的影响。研究对象为90名青春期前女孩，体重指数从体重不足到肥胖不等。此外，静息能量消耗（REE）和种族，身体质量指数，皮褶厚度的措施，体力活动，青春期阶段和平均看电视的时间之间的影响进行了探讨。结果表明，体重组之间的代谢率没有显着差异，也没有活动条件（听故事和看电视）和休息条件。一个显着的剂量-反应关系，发现REE减少平均每周看电视的时间增加，调整后的体重指数和青春期阶段。此外，青春期发育的后期阶段相比，早期阶段与更高水平的稀土元素。这项研究的结果表明，代谢率本身并不能解释一直观察到的看电视和肥胖之间的关系。未来的研究应该集中在能量摄入，身体活动，或这些与代谢率的组合，以寻求特定的机制负责与肥胖有关的电视观看。
While childhood obesity has been linked to television (TV) viewing, specific mechanisms are not well understood. Obesity related to TV viewing might plausibly be related to decreased physical activity, increased food intake, reductions in metabolic rate, or combinations of these. The current investigation sought to ascertain the metabolic effects of quiet rest, listening to a story, watching a passive TV program, and watching an active TV show. Counter-balanced conditions were presented to 90 pre-pubertal girls ranging in body mass index from underweight to obese. In addition, effects between resting energy expenditure (REE) and race, body mass index, skinfold measures, physical activity, pubertal stage and average hours spent viewing TV were explored. Results indicated no significant differences in metabolic rate between weight groups nor between activity conditions (story listening and TV viewing) and rest conditions. A significant dose-response relationship was found in which REE decreased as average weekly hours of TV viewing increased, after adjusting for body mass index and puberty stage. Additionally, later stages of pubertal development compared to earlier stages were related to higher levels of REE. Results of this study suggest that metabolic rate alone cannot account for the consistently observed relationship between television viewing and obesity. Future studies should focus on energy intake, physical inactivity, or combinations of these with metabolic rate in seeking specific mechanisms responsible for television viewing related to obesity.