EFFECT OF SEDENTARY ACTIVITIES ON RESTING METABOLIC-RATE
EFFECT OF SEDENTARY ACTIVITIES ON RESTING METABOLIC-RATE
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DOI：
10.1093/ajcn/59.3.556
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发表时间：
1994-03-01
影响因子：
7.1
通讯作者：
CHING, PLYH
中科院分区：
文献类型：
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作者：
DIETZ, WH;BANDINI, LG;CHING, PLYH
我们在一组年龄为10.4±1.1岁的9名肥胖女孩和18名非肥胖女孩中研究了看电视对静息代谢率（RMR）的影响。在女孩们看电视、阅读或安静坐15分钟时测量RMR。通过使用活动监测器以及对录像带上观察到的动作进行人工计数来评估活动情况。肥胖女孩的绝对RMR较高，但在两组中的任何一组内，绝对RMR都没有显著的处理效应。尽管测量到的活动没有差异，但女孩安静坐着时观察到的动作更多。观察到的和测量到的总动作与每分钟RMR的变异系数显著相关。这些结果表明看电视不会改变RMR。尽管儿童在安静坐着时似乎比阅读或看电视时更爱动，但这种小动作似乎影响RMR的每分钟变化，而非静息能量消耗水平。
We examined the effect of television viewing on resting metabolic rate (RMR) in a cohort of 9 obese and 18 nonobese girls aged 10.4 +/- 1.1 y. RMR was measured while girls watched television, read, or sat quietly for 15 min. Movement was assessed by using activity monitors and a manual count of movements observed on a videotape. Absolute RMR was greater for the obese girls, but no significant treatment effect existed for absolute RMR within either group. Although measured activity did not differ, observed movements were greater when the girls were sitting quietly. Total observed and measured movements were significantly correlated with the CV of the minute-by-minute RMR. These results suggest that television viewing does not alter RMR. Although children appear to fidget more when sitting quietly than when they read or watch television, fidgeting appears to affect the minute-to-minute variation of RMR rather than the level of resting energy expenditure.