Dr. med. Anna K. Stuck, Department of Geriatrics, Inselspital, Bern University Hospital, and University of Bern, Freiburgstrasse 46, CH-3010 Bern, Switzerland e-Mail:
J Frailty Aging. 2022;11(2):156-162. doi: 10.14283/jfa.2021.40.
To investigate practicality and repeatability of a handheld compared to a state-of-the-art multisegmental bioelectrical impedance analysis (BIA) device to facilitate screening of sarcopenia in older inpatients.
Cross-sectional study in a geriatric rehabilitation hospital.
207 inpatients aged 70+.
In a first phase, appendicular skeletal muscle mass index (ASMI) was measured using the handheld Biody xpertZm II BIA device (n=100). In a second phase, ASMI was obtained using the multisegmental Biacorpus RX 4004M device (n=107). Repeatability of BIA devices was compared in subgroups of patients (handheld BIA device: n=36, multisegmental BIA device: n=46) by intra-class correlation (ICC) and Bland-Altman plots.
Overall, measurement failure was seen in 31 patients (31%) tested with the handheld BIA device compared to one patient (0.9%) using the multisegmental BIA device (p<0.001). Main reasons for measurement failure were inability of patients to adopt the position necessary to use the handheld BIA device and device failure. The mean difference of two ASMI measurements in the same patient was 0.32 (sd 0.85) using the handheld BIA device compared to 0.02 kg/m2 (sd 0.07) using the multisegmental device (adjusted mean difference between both groups -0.35, 95% confidence interval (CI) -0.61 to -0.09 kg/m2). Congruently, Bland-Altman plots showed poor agreement with the handheld compared to the multisegmental BIA device.
The handheld BIA device is neither a practical nor reliable device for assessing muscle mass in older rehabilitation inpatients.
研究手持式与最先进的多节段生物电阻抗分析（BIA）设备相比，在方便筛查老年住院患者肌少症方面的实用性和可重复性。
老年康复医院的横断面研究。
207 名年龄在 70 岁以上的住院患者。
在第一阶段，使用手持式 Biody xpertZm II BIA 设备测量四肢骨骼肌质量指数（ASMI）（n=100）。在第二阶段，使用多节段 Biacorpus RX 4004M 设备获得 ASMI（n=107）。通过组内相关系数（ICC）和 Bland-Altman 图比较了 BIA 设备在亚组患者中的重复性（手持式 BIA 设备：n=36，多节段 BIA 设备：n=46）。
总体而言，与使用多节段 BIA 设备的 1 名患者（0.9%）相比，使用手持式 BIA 设备的 31 名患者（31%）出现测量失败（p<0.001）。测量失败的主要原因是患者无法采用使用手持式 BIA 设备所需的姿势和设备故障。同一患者两次 ASMI 测量的平均差值使用手持式 BIA 设备为 0.32（sd 0.85），而使用多节段设备为 0.02 kg/m2（sd 0.07）（两组间的调整平均差值为-0.35，95%置信区间（CI）为-0.61 至-0.09 kg/m2）。Bland-Altman 图显示，与多节段 BIA 设备相比，手持式 BIA 设备的一致性较差。
手持式 BIA 设备既不实用也不可靠，无法评估老年康复住院患者的肌肉量。
