Maffeis C, Pinelli L, Zaffanello M, Schena F, Iacumin P, Schutz Y
Regional Center for Juvenile Diabetes, University of Verona, Italy.
Int J Obes Relat Metab Disord. 1995 Sep;19(9):671-7.
To compare the heart-rate monitoring with the doubly labelled water (2H2(18)O) method to estimate total daily energy expenditure in obese and non-obese children.
Cross sectional study of obese and normal weight children.
13 prepubertal children: six obese (4M, 2F, 9.1 +/- 1.5 years, 47.3 +/- 9.7 kg) and seven non-obese (3M, 4F, 9.3 +/- 0.6 years, 31.8 +/- 3.2 kg).
Total daily energy expenditure was assessed by means of the doubly labelled water method (TEEDLW) and of heart-rate monitoring (TEEHR).
TEEHR was significantly (P < 0.05) higher than TEEDLW in obese children (9.47 +/- 0.84 MJ/d vs 8.99 +/- 0.63 MJ/d) whereas it was not different in non-obese children (8.43 +/- 2.02 MJ/d vs 8.42 +/- 2.30 MJ/d, P = NS). The difference of TEE assessed by HR monitoring in the obese group averaged 6.2 +/- 4.7%. At the individual level, the degree of agreement (difference between TEEHR and TEEDLW +/- 2s.d.) was low both in obese (-0.36, 1.32 MJ/d) and in non-obese children (-1.30, 1.34 MJ/d). At the group level, the agreement between the two methods was good in nonobese children (95% c.i. for the bias:-0.59, 0.63 MJ/d) but not in obese children (0.04, 0.92 MJ/d). Duration of sleep and energy expenditure during resting and physical activity were not significantly different in the two groups. Patterns of heart-rate (or derived energy expenditure) during the day-time were similar in obese and non-obese children.
The HR monitoring technique provides an estimation of TEE close to that assessed by the DLW method in non-obese prepubertal children. In comparison with DLW, the HR monitoring method yields a greater TEE value in obese children.
比较心率监测与双标记水（2H2(18)O）法在评估肥胖和非肥胖儿童每日总能量消耗方面的差异。
对肥胖和正常体重儿童进行横断面研究。
13名青春期前儿童，其中6名肥胖儿童（4名男性，2名女性，9.1±1.5岁，47.3±9.7千克）和7名非肥胖儿童（3名男性，4名女性，9.3±0.6岁，31.8±3.2千克）。
通过双标记水法（TEEDLW）和心率监测（TEEHR）评估每日总能量消耗。
肥胖儿童中，TEEHR显著高于TEEDLW（P<0.05）（9.47±0.84兆焦/天对8.99±0.63兆焦/天），而非肥胖儿童中两者无差异（8.43±2.02兆焦/天对8.42±2.30兆焦/天，P=无显著性差异）。肥胖组中通过心率监测评估的TEE差异平均为6.2±4.7%。在个体水平上，肥胖儿童（-0.36，1.32兆焦/天）和非肥胖儿童（-1.30，1.34兆焦/天）中，TEEHR与TEEDLW之间的一致性程度（差异±2标准差）都较低。在组水平上，两种方法在非肥胖儿童中一致性良好（偏差的95%置信区间：-0.59，0.63兆焦/天），但在肥胖儿童中不一致（0.04，0.92兆焦/天）。两组儿童的睡眠时间以及静息和身体活动期间的能量消耗无显著差异。肥胖和非肥胖儿童白天的心率（或由此得出的能量消耗）模式相似。
在非肥胖青春期前儿童中，心率监测技术对TEE的估计与双标记水法相近。与双标记水法相比，心率监测法在肥胖儿童中得出的TEE值更高。
