SEARCHOTHERgeriatrics, research methods

other·geriatrics, research methods, clinical trial, biomedical research·PMC10062543

Preliminary study on the application of bioimpedance analysis to measure the psoas major muscle in older adults

PLOS ONE · 9 authors, 9 centres

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TL;DR

Applied to the VG, the equation correlated with PMM_CT at r=0.846, with limits of agreement from -4.55 to 4.75 cm^2.

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Applied to the VG, the equation correlated with PMM_CT at r=0.846, with limits of agreement from -4.55 to 4.75 cm^2. Whole-body impedance index showed the strongest correlation with PMM_CT (r=0.77), whereas trunk impedance index did not (r=0.03). The authors note the study is preliminary, single-frequency, and limited in sample size, with multi-frequency BIA and external replication still needed. The findings suggest BIA-based estimation of psoas major area is feasible in older adults.

STUDY TYPE

other

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geriatrics

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AI pipeline

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ORIGINAL PAPER

PMC10062543

Preliminary study on the application of bioimpedance analysis to measure the psoas major muscle in older adults

PLOS ONE

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ABSTRACT

Abstract For the assessment of sarcopenia or other geriatric frailty syndromes, psoas major area may be one of the primary indicators. Aim to develop and cross-validate the psoas cross-sectional area estimation equation of L3-L4 of the elderly over 60 years old by bioelectrical impedance analysis (BIA). Ninety-two older adults with normal mobility were enrolled (47 females, 45 males), and were randomly divided into a modeling group (MG, n = 62) and validation group (VG, n = 30). Computed tomography (CT) was used to measure the psoas major area at the’ L3-L4 lumbar vertebrae height as a predictor. Estimated variables were height (h), whole body impedance (Z whole ), whole body impedance index (h 2 /Z whole , WBI), age, gender (female = 0, male = 1), and body weight (weight) by standing BIA. Relevant variables were estimated using stepwise regression analysis. Model performance was confirmed by cross-validation. BIA estimation equation for PMM obtained from the MG was: (PMM BIA = 0.183 h 2 /Z– 0.223 age + 4.443 gender + 5.727, r 2 = 0.702, n = 62, SEE = 2.432 cm 2 , p < 0.001). The correlation coefficient r obtained by incorporating the VG data into the PMM equation was 0.846, and the LOA ranged from -4.55 to 4.75 cm 2 . PMM BIA and PMM CT both correlate highly with MG or VG with small LOA. The fast and convenient standing BIA for measuring PMM may be a promising method that is worth developing.

CITATION EXPORT

Lee-Ping Chu, Kuen-Tsann Chen, Hsueh-Kuan Lu et al.. Preliminary study on the application of bioimpedance analysis to measure the psoas major muscle in older adults. PLOS ONE. (2023). https://doi.org/10.1371/journal.pone.0275884

AUTHORS

9 · 9 CENTRES

Lee-Ping Chu, Kuen-Tsann Chen, Hsueh-Kuan Lu, Chung-Liang Lai, Hsing-Ching Huang, Kuen-Chang Hsieh, Yosuke Yamada, Yosuke Yamada, Yosuke Yamada

1Department of Applied Math, National Chung Hsing University, Taichung, Taiwan
2Department of Orthopedics, China Medical University Hospital, Taichung, Taiwan
3General Education Center, National Taiwan University of Sport, Taichung, Taiwan
4Department of Physical Medicine and Rehabilitation, Puzi Hospital, Ministry of Health and Welfare, Chiayi, Taiwan
5Department of Occupational Therapy, Asia University, Taichung, Taiwan
6Department of Physical Medicine and Rehabilitation, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
7Department of Research and Development, Starbia Meditek Co., Ltd, Taichung, Taiwan
8Big Data Center, National Chung-Hsing University, Taichung, Taiwan
9National Institute of Biomedical Innovation Health and Nutrition, JAPAN