ABSTRACT

Accurate body composition assessment, which includes fat mass (adipose tissue mass, FM), fat-free mass (FFM), and percent fat mass (%FM) is needed to evaluate health and treatment efficacy. The current study compared body composition estimates obtained from the Norland Elite® DXA, BodPod®, and iDXA® before and after a12-week exercise intervention in adults (n=30, BMI 25–35 kg/m²) . Bland-Altman methods determined mean bias and limits of agreement for FM, %FM, and FFM between methods. Compared to the iDXA® and BodPod®, Elite® overestimated BF% and FM (P < .01). FFM was similar between iDXA® and Elite® but lower in Elite® than BodPod® (P < .01). There were no differences between methods in changes in FM or FFM after the exercise intervention. Prior to this study, it was unknown how the Norland Elite®, a DXA model marketed to bariatric surgery patients, compared to other common body composition assessment methodologies..

摘要

需要准确的身体成分评估，包括脂肪质量（脂肪组织质量，FM），无脂肪质量（FFM）和脂肪质量百分比（％FM），以评估健康和治疗效果。当前的研究比较了成年人进行12周运动干预（n = 30，BMI 25-35 kg / m ²）前后从NorlandElite®DXA，BodPod®和iDXA®获得的身体成分估计值。Bland-Altman方法确定了方法之间的FM，％FM和FFM的平均偏差和一致性极限。与iDXA®和BodPod®相比，Elite®高估了BF％和FM（P  <.01）。iDXA®和Elite®之间的FFM相似，但Elite®中的FFM低于BodPod®（P <.01）。运动干预后，FM或FFM的改变方法之间没有差异。在进行这项研究之前，与其他常见的人体成分评估方法相比，尚不知道面向减肥手术患者销售的DXA模型NorlandElite®。