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压缩带对双能X射线吸收测量身体组成得分的压缩带的影响

Yamileth Chacón-Araya¹, Elizabeth Carpio-Rivera¹, Andrea Quirós-Quirós²

¹Human Movement Sciences Research Center (CIMOHU), University of Costa Rica, Costa Rica; School of Physical Education and Sports, University of Costa Rica, Costa Rica.

Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry

|December 22, 2023

概括

在双能X射线吸收度 (DXA) 扫描期间佩戴的压缩带 (CB) 不会显著改变身体成分 (BC) 测量. 结果显示微小的变化和微不足道的偏差,表明CBs适合DXA评估.

科学领域:

医疗成像医学成像
身体组成分析身体成分分析
生物物理学的生物物理.

背景情况:

双能X射线吸收计 (DXA) 是评估身体成分 (BC) 的常用方法.
外部因素,如服装对织品的压缩,可能会引入噪音并影响DXA测量的准确性.
压缩带 (CB) 对DXA衍生的BC的影响尚未得到广泛研究.

研究的目的:

研究使用压缩带 (CB) 对通过双能X射线吸收计 (DXA) 获得的身体成分 (BC) 测量的影响.
确定CB是否在基于DXA的BC评估中引入了重大改变或偏见.

主要方法:

60名志愿者 (平均年龄为21.4±4.7岁) 在两个条件下接受全身DXA扫描:对照 (没有CB) 和30mmHg的CB应用于干,腿和手臂.
差异分析 (ANOVA) 用于比较身体组成变量,包括身体脂肪百分比 (BF%),区域身体脂肪百分比 (RBF%),身体组织 (BT),脂肪质量 (FM),肌肉质量 (LM),骨矿物质含量 (BMC) 和总质量 (TM).
使用典型测量误差 (TEM),变化系数 (CV) 和布兰德-阿尔特曼图表来评估可靠性.

主要成果:

对组织总体BF% (p=0.049),RBF% (p=0.048),机器人瘦质 (p=0.004) 和机器人总质 (p=0.019) 观察到显著的ANOVA相互作用.
大多数人体组成变量的变化系数 (CV) 很小,通常低于5% (例如,组织BF%CV=2.61±0.93%).
布兰德-阿尔特曼图表显示BF%,LM和BMC的随机误差,在男性BF%测量中观察到0.5%的微不足道偏差.

结论:

在全身DXA扫描期间佩戴压缩带 (CB) 会产生与没有CB的扫描相似的身体组成 (BC) 评分.
对于大多数变量,BC分数与CB的变化率小于10%,这表明可靠性很好.
在男性身上检测到0.5%的身体脂肪百分比的最小偏差,表明CBs不会大大影响DXA的准确性.

关键词:

服装服装服装服装服装质量控制质量控制可靠性可靠性可靠性全身构成全身构成这是X射线.

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