Centre for Epidemiological Studies and Clinical Trials, The Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
J Strength Cond Res. 2013 Jan;27(1):236-43. doi: 10.1519/JSC.0b013e31824f2040.
We compared a 4-limb bioelectrical impedance analysis (BIA) system, HBF 359 (Omron), and a 2-limb foot-to-foot device, BC 532 (Tanita), with the standard dual energy X-ray absorptiometry (DXA) and magnetic resonance imaging (MRI) methods for the measurement of body fat percentage (BF), skeletal muscle mass percentage (SMM, or fat-free mass [FFM] for BC 532), and visceral fat level (VF). Body composition was measured in 200 healthy volunteers (100 men and 100 women, mean age 48 years) by HBF 359 and BC 532 and by DXA and MRI. The agreement was assessed by correlation analysis and paired t-test. The correlation coefficients between BIA and DXA or MRI ranged from 0.71 to 0.89 for BF, SMM, and VF by HBF 359 and from 0.77 to 0.90 for BF, FFM, and VF by BC 532 in all subjects and in men and women separately (p < 0.001 for all). Compared with DXA, HBF 359 significantly (p < 0.001) underestimated BF by -5.8% in men and -9.6% in women. Compared with MRI, the corresponding underestimatons (negative) or overestimations (positive) by HBF 359 in men and women were, respectively, +1.9% (p = 0.02) and +1.7% (p = 0.10) for SMM, and +13.3% (p < 0.001) and -8.5% (p = 0.006), for VF. The corresponding values by BC 532 in men and women were -10.7 and -6.2% for BF, -1.4 and -2.5% for FFM, and +20.4 and -18.0% for VF. The BIA devices are accurate in the estimation of body composition, especially skeletal muscle mass or FFM.
我们将 4 肢生物电阻抗分析（BIA）系统 HBF 359（欧姆龙）和 2 肢足对足设备 BC 532（百利达）与标准双能 X 射线吸收法（DXA）和磁共振成像（MRI）方法进行比较，用于测量体脂肪百分比（BF）、骨骼肌质量百分比（SMM，或 BC 532 的无脂肪质量[FFM]）和内脏脂肪水平（VF）。在 200 名健康志愿者（100 名男性和 100 名女性，平均年龄 48 岁）中，使用 HBF 359 和 BC 532 以及 DXA 和 MRI 进行身体成分测量。通过相关性分析和配对 t 检验评估一致性。HBF 359 对 BF、SMM 和 VF 的 BIA 与 DXA 或 MRI 的相关系数范围为 0.71 至 0.89，BC 532 对 BF、FFM 和 VF 的相关系数范围为 0.77 至 0.90，所有受试者、男性和女性均如此（p < 0.001 ）。与 DXA 相比，HBF 359 在男性中显著（p < 0.001）低估 BF 为-5.8%，在女性中低估 BF 为-9.6%。与 MRI 相比，HBF 359 在男性和女性中的相应低估（负）或高估（正）分别为 SMM 的+1.9%（p = 0.02）和+1.7%（p = 0.10），VF 的+13.3%（p < 0.001）和-8.5%（p = 0.006）。BC 532 在男性和女性中的相应值分别为 BF 的-10.7%和-6.2%，FFM 的-1.4%和-2.5%，VF 的+20.4%和-18.0%。BIA 设备在身体成分的估计中是准确的，特别是骨骼肌质量或 FFM。
