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Validity of resting energy expenditure estimated by an activity monitor compared to indirect calorimetry

机译:与间接量热法相比,活动监测仪估算的静息能量消耗的有效性

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The use of activity monitors (triaxial accelerometers) to estimate total energy expenditure in kilocalories is dependent on the estimation of resting energy expenditure (REE). However, the REE estimated by activity monitors has not been validated against more precise techniques, such as indirect calorimetry (IC). Therefore, the objective of the present study was to compare REE estimated by the Actical activity monitor (ActMon) to that measured by IC and standard prediction equations of REE. Fifty healthy adults between 18 and 43 years of age were measured for weight and percentage of body fat using a digital scale and bioelectrical impedance. The REE estimated by the ActMon was only 129 kJ/d higher, but not statistically different (P>0p"05), than the REE measured with IC. Using multiple linear regression, there was a positive relationship for men, but not for women, between fat mass (kg) and percentage of body fat and the difference in REE estimated by the ActMon compared to IC (P < 0p"001). Therefore, in the cohort studied, the use of an activity monitor to estimate REE is valid when compared to IC, but not to a standard prediction equation of REE.
机译:使用活动监视器(三轴加速度计)估算以千卡为单位的总能量消耗取决于静止能量消耗(REE)的估算。但是,活动监视器估计的REE尚未针对更精确的技术(例如间接量热法(IC))进行验证。因此,本研究的目的是将Actic活动监视器(ActMon)估算的REE与IC和REE的标准预测方程测得的REE进行比较。使用数字量表和生物电阻抗测量五十名18至43岁的健康成年人的体重和体脂百分比。 ActMon估算的REE仅比用IC测量的REE高129 kJ / d,但没有统计学差异(P> 0p“ 05)。使用多元线性回归,男性与女性之间存在正相关关系,在脂肪质量(kg)和身体脂肪百分比之间,以及ActMon与IC估算的REE差异(P <0p“ 001)。因此,在所研究的队列中,与IC相比,使用活动监视器估计REE是有效的,但与REE的标准预测方程式相比则无效。

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