| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
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| Outline of Final Research Achievements |
We measured Japanese children's daily energy expenditure by the doubly labeled water (DLW) method, in addition to the heart rate monitor and the triaxial accelerometer, in order to prove a simple and accurate method for an estimation of a child's daily physical activity level. The subjects were Japanese boys and girls from 3 to 6 years old.
The mean of energy expenditure measured by the DLW method was similar to the value showed in the Japanese dietary guideline. There was a low correlation between the heart rate and the measurement from the accelerometer in the subjects. The results suggested that the children's heart rates might be easily fluctuate and could be influenced by many other variables. It would be difficult to accurately estimate a child's physical activity level only by the heart rate monitor. Therefore, we should combine an triaxial accelerometer and a diary method for a better approximation of a child's daily physical activity level.
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