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. 2023 Aug 25;13(1):13909.
doi: 10.1038/s41598-023-40629-0.

Phase angle is related to physical function and quality of life in preoperative patients with lumbar spinal stenosis

Ryota Otsubo  1 , Ryuki Hashida  2   3 , Kenta Murotani  4 , Sohei Iwanaga  1   5 , Keisuke Hirota  1 , Shunji Koya  1 , Yuya Tsukada  6 , Yuta Ogata  7 , Kimiaki Yokosuka  5 , Tatsuhiro Yoshida  5 , Ichiro Nakae  5 , Takuma Fudo  5 , Shinji Morito  5 , Takahiro Shimazaki  5 , Kei Yamada  5 , Kimiaki Sato  5 , Hiroo Matsuse  1   5 , Naoto Shiba  1   5 , Koji Hiraoka  5
Affiliations

Phase angle is related to physical function and quality of life in preoperative patients with lumbar spinal stenosis

Ryota Otsubo et al. Sci Rep. .

Abstract

Lumbar spinal stenosis (LSS) can interfere with daily life and quality of life (QOL). Evaluating physical function and QOL and helping patients to improve is the focus of rehabilitation. Phase angle (PhA) assessment is widely used to measure body composition and is considered an indicator of physical function and QOL. This study investigated the relationship between PhA and physical function, physical activity, and QOL in patients with LSS. PhA, handgrip strength, walking speed, Timed Up and Go test (TUG), Life Space Assessment (LSA), Prognostic Nutritional Index (PNI), Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ), and EQ-5D were assessed and statistically analyzed. The study included 133 patients with LSS. Multiple regression analysis of PhA adjusted for age, sex, and body mass index (Model 1) and for Model 1 + PNI (Model 2) showed significant correlations (P < 0.05) with handgrip strength, walking speed, TUG, and LSA. Regarding QOL, PhA was significantly correlated (P < 0.05) with lumbar function in JOABPEQ. PhA was associated with physical function and QOL in patients with LSS and might be a new clinical indicator in this population.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Flowchart of the patient inclusion process.
Figure 2
Figure 2
Summary of the study. The phase angle using bioelectrical impedance analysis was associated with quality of life, physical function, and physical activity in patients with lumbar spinal stenosis.
See this image and copyright information in PMC

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