Is segmental bioelectrical impedance analysis a valid tool to assess muscle mass in the elderly?

2013 ◽  
Vol 13 (4) ◽  
pp. 1085-1086 ◽  
Author(s):  
Umut Safer ◽  
Ilker Tasci ◽  
Vildan Binay Safer ◽  
Huseyin Doruk
Keyword(s):  
Muscle Mass ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
The Elderly ◽  
Segmental Bioelectrical Impedance

Estimation of thigh muscle cross-sectional area by single- and multifrequency segmental bioelectrical impedance analysis in the elderly

2014 ◽  
Vol 116 (2) ◽  
pp. 176-182 ◽  
Author(s):  
Yosuke Yamada ◽  
Masahiro Ikenaga ◽  
Noriko Takeda ◽  
Kazuhiro Morimura ◽  
Nobuyuki Miyoshi ◽  
...  
Keyword(s):  
Muscle Mass ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
The Elderly ◽  
Thigh Muscle ◽  
Sectional Area ◽  
Cross Sectional ◽  
Relative Expansion ◽  
Muscle Cross Sectional Area

Bioelectrical impedance analysis (BIA) has been used to estimate skeletal muscle mass, but its application in the elderly is not optimal. The accuracy of BIA may be influenced by the expansion of extracellular water (ECW) relative to muscle mass with aging. Multifrequency BIA (MFBIA) can evaluate the distribution between ECW and intracellular water (ICW), and thus may be superior to single-frequency BIA (SFBIA) to estimate muscle mass in the elderly. A total of 58 elderly participants aged 65–85 years were recruited. Muscle cross-sectional area (CSA) was obtained from computed tomography scans at the mid-thigh. Segmental SFBIA and MFBIA were measured for the upper legs. An index of the ratio of ECW and ICW was calculated using MFBIA. The correlation between muscle CSA and SFBIA was moderate ( r = 0.68), but strong between muscle CSA and MFBIA ( r = 0.85). ECW/ICW index was significantly and positively correlated with age ( P < 0.001). SFBIA tends to significantly overestimate muscle CSA in subjects who had relative expansion of ECW in the thigh segment ( P < 0.001). This trend was not observed for MFBIA ( P = 0.42). Relative expansion of ECW was observed in older participants. The relative expansion of ECW affects the validity of traditional SFBIA, which is lowered when estimating muscle CSA in the elderly. By contrast, MFBIA was not affected by water distribution in thigh segments, thus rendering the validity of MFBIA for estimating thigh muscle CSA higher than SFBIA in the elderly.

Relationship between trunk muscle strength and trunk muscle mass and thickness using bioelectrical impedance analysis and ultrasound imaging

2021 ◽  
pp. 1-10
Author(s):  
Ryo Miyachi ◽  
Nana Koike ◽  
Suzu Kodama ◽  
Junya Miyazaki
Keyword(s):  
Muscle Strength ◽  
Muscle Mass ◽  
Ultrasound Imaging ◽  
Bioelectrical Impedance Analysis ◽  
Muscle Thickness ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Trunk Muscle ◽  
Trunk Muscles ◽  
Trunk Muscle Strength

BACKGROUND: Although trunk muscles are involved in many important functions, evaluating trunk muscle strength is not an easy task. If trunk muscle mass and thickness could be used as indicators of trunk muscle strength, the burden of measurement would be reduced, but the relationship between trunk muscle strength and trunk muscle mass and thickness has not been clarified. OBJECTIVE: The purpose of this study was to clarify the relationship between trunk muscle strength and trunk muscle mass by bioelectrical impedance analysis and trunk muscle thickness by ultrasound imaging in healthy adults. METHODS: One hundred and twenty-one healthy university students were included in this study. Trunk flexion/extension muscle strength and trunk muscle mass by bioelectrical impedance analysis, and trunk muscle thickness by ultrasound imaging were measured. RESULTS: Both trunk flexion strength and trunk extension strength were significantly correlated with trunk muscle mass and oblique and rectus abdominis muscle thickness. Multiple regression analysis showed that trunk extension muscle strength had an independent relationship with trunk muscle mass. CONCLUSIONS: This study demonstrated that trunk muscle mass or trunk muscle thickness can be used as an alternative means for evaluating trunk muscle strength, making the evaluation of trunk muscles less burdensome.

scholarly journals Identifying critically ill patients with low muscle mass: Agreement between bioelectrical impedance analysis and computed tomography

2020 ◽  
Vol 39 (6) ◽  
pp. 1809-1817 ◽  
Author(s):  
Willem G.P.M. Looijaard ◽  
Sandra N. Stapel ◽  
Ingeborg M. Dekker ◽  
Hanna Rusticus ◽  
Sharon Remmelzwaal ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Critically Ill ◽  
Muscle Mass ◽  
Critically Ill Patients ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis

Detection of Hydration Status by Total Body Bioelectrical Impedance Analysis (BIA) in Patients on Hemodialysis

1997 ◽  
Vol 20 (7) ◽  
pp. 371-374 ◽  
Author(s):  
B. Oe ◽  
W.M. De Fijter ◽  
C.W.H. De Fijter ◽  
B. Straver ◽  
P.L. Oe ◽  
...  
Keyword(s):  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Dry Weight ◽  
Impedance Analysis ◽  
Hydration Status ◽  
Fluid Loss ◽  
Nutritional Analysis ◽  
Total Body ◽  
Segmental Bioelectrical Impedance ◽  
Simultaneous Assessment

The purpose of the present study was to investigate whether total body bioelectrical impedance analysis (BIA) could be appropriate to assess normohydration (i.e. dry weight) in hemodialysis patients. This study is warranted, because the simultaneous assessment of both hydration and nutritional status by BIA requires the presence of a situation of normohydration in order to guarantee valid conclusions about the nutritional analysis. Segmental bioelectrical impedance was performed to classify patients according to their hydration status. BIA measurements revealed significant differences in TBW, ECW and ICW/ECW between three hydration subgroups (under-, normo-, and overhydration), whereas ICW was similar. Therefore, TBW, ECW and ICW/ECW appear appropriate variables to assess hydration status in patients on hemodialysis. Hemodialysis diminished ECW significantly, whereas ICW did not change, suggesting that a decrease of ECW explains the fluid loss during hemodialysis.

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