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首页> 外文期刊>Journal of strength and conditioning research >Total energy expenditure assessment in elite junior basketball players: A validation study using doubly labeled water
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Total energy expenditure assessment in elite junior basketball players: A validation study using doubly labeled water

机译：初级青少年篮球运动员的总能量消耗评估：使用双标水的验证研究

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摘要

An accurate assessment of total energy expenditure (TEE) during a competitive season is required. We aimed to validate TEE estimated by self-reported energy intake (EI) and the dietary reference intake (DRI) method in 19 elite basketball players (aged 16-18 years) using doubly labeled water (DLW) as the reference method. The DRI models and EI from dietary records over a 7-day period were simultaneously assessed for TEE estimation. Resting energy expenditure was assessed by indirect calorimetry. Fat and fat-free mass (FFM) were determined by a 4-compartment model (body volume by air displacement plethysmography, bone mineral by DXA, and water by deuterium dilution). Fat and FFM ranged from 4 to 19 kg and from 47 to 81 kg, respectively. The physical activity level ranged from 2.2 to 3.7 with a mean value of 2.8 ± 0.4. Total energy expenditure from DLW (17,598 ± 3,298 kJ d21) was significantly underestimated by EI (11,274 ± 2,567 kJ d21), whereas no differences were found using DRI (17,008 ± 3,206 kJ d21). The EI and DRI methods explained TEE from DLW by 34% (p = 0.057) and 44% (p = 0.002), respectively, and wide limits of agreement were observed. Our findings suggested that EI is not a valid tool for TEE assessment. The DRI method may be valid at a group level but inaccurate for estimating individual TEE in young players during a demanding competitive season period.
机译：需要准确评估比赛季节的总能源消耗（TEE）。我们的目的是使用双标签水（DLW）作为参考方法，对19名18至18岁年龄段的优秀篮球运动员的自我报告能量摄入（EI）和膳食参考摄入量（DRI）方法估计的TEE进行验证。同时评估了7天的饮食记录中的DRI模型和EI，以进行TEE估算。静止能量消耗通过间接量热法评估。脂肪和无脂肪质量（FFM）通过4室模型确定（通过空气体积体积描记法测定人体体积，通过DXA测定骨矿物质，并通过氘稀释法测定水）。脂肪和FFM的范围分别为4到19千克和47到81千克。身体活动水平在2.2到3.7之间，平均值为2.8±0.4。 EI（11,274±2,567 kJ d21）大大低估了DLW的总能量消耗（17,598±3,298 kJ d21），而使用DRI（17,008±3,206 kJ d21）没有发现差异。 EI和DRI方法将DLW的TEE解释为分别为34％（p = 0.057）和44％（p = 0.002），并且观察到了广泛的一致性极限。我们的发现表明，EI不是TEE评估的有效工具。 DRI方法可能在团体级别上有效，但在竞争激烈的赛季期间无法准确估计年轻球员的个人TEE。

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