Practical Considerations for Body Composition Assessment of Adults with Class II/III Obesity Using Bioelectrical Impedance Analysis or Dual-Energy X-Ray Absorptiometry
Practical Considerations for Body Composition Assessment of Adults with Class II/III Obesity Using Bioelectrical Impedance Analysis or Dual-Energy X-Ray Absorptiometry
复制标题
使用生物电阻抗分析或双能X射线吸收测定法对II/III类肥胖成年人进行身体成分评估的实际考虑
DOI：
10.1007/s13679-016-0228-5
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发表时间：
2016-12-01
影响因子：
8.8
通讯作者：
Prado, Carla M.
中科院分区：
文献类型：
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作者：
Stoklossa, Carlene A. Johnson;Forhan, Mary;Prado, Carla M.
综述的目的本综述的目的是探讨成人II/III级肥胖的身体成分评估的实际考虑因素。采用生物电阻抗分析(BIA)和/或双能X射线吸收法(DXA)对体重指数(BMI)=35 kg/m(2)的成年人(18-)进行评估。确定了五个考虑因素：设备和技术的差异、设备重量能力、受试者位置、组织渗透和全身水分。在BMI和Gt；=35 kg/m(2)的受试者中，BIA高估了脱脂体重，随着BMI的增加，标度误差也随之增加。DXA提供了准确和可靠的身体成分测量，但设备相关的障碍阻碍了对一些更高、更宽和更重的受试者的评估。摘要BIA是一种不可靠的方法来评估II/III级肥胖的身体成分。DXA技术(例如，iDXA)、方法(例如，受试者定位、更长的扫描时间)和更全面的测试标准(例如，使用设备限制而不仅仅是BMI)的进步可能会改善对这一队列中身体成分的获取和了解。
Purpose of Review The purpose of this review is to explore the practical considerations for body composition assessment of adults with class II/III obesity. Studies assessing adults (18-64 years) with a body mass index (BMI) >= 35 kg/m(2) with bioelectrical impedance analysis (BIA) and/or dual-energy X-ray absorptiometry (DXA) were included.Recent Findings Twelve studies met inclusion criteria. Five considerations were identified: variances in equipment and technology, equipment weight capacity, subject positioning, tissue penetration, and total body hydration. In subjects with BMI >= 35 kg/m(2), BIA overestimated fat-free mass with scaling errors as BMI increased. DXA provided accurate and reliable body composition measures, but equipment-related barriers prevented assessment of some taller, wider, and heavier subjects.Summary BIA is an unreliable method to assess body composition in class II/III obesity. Advancements in DXA tech-nology (e.g., iDXA), methodology (e.g., subject positioning, longer scan times), and more inclusive testing criteria (e.g., use equipment limits not just BMI) may improve access and understanding of body composition in this cohort.