Previous research shows that their dailyenergyexpenditure is about the same as most Americans, suggesting physical activity is not the reason for their relative good health.
此前的研究显示，他们的日常能量消耗与大多数美国人差不多，这表明体力活动并非他们身体相对健康的原因。
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The purpose of this study was to study energyexpenditure of different walking speed in order to get formulas which can calculate energyexpenditure of walking and daily physical activity.