Association of resting energy expenditure with phase angle in hospitalized older patients: a cross-sectional analysis

Background/Objectives Resting energy expenditure (REE) constitutes the largest component of total energy expenditure and undergoes an age-related decline that is unexplained by decreased fat-free mass. Phase angle (PhA) is a cellular health indicator that is possibly associated with REE. We investig...

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Published in:European journal of clinical nutrition 2024-03, Vol.78 (3), p.187-192
Main Authors: Kawase, Fumiya, Masaki, Yoshiyuki, Ozawa, Hiroko, Imanaka, Manami, Sugiyama, Aoi, Wada, Hironari, Kobayashi, Shinya, Tsukahara, Takayoshi
Format: Article
Language:English
Subjects:
692/700/1518
692/700/2814
Adults
Age
Algorithms
Bioelectricity
Body composition
Calorimetry
Clinical Nutrition
Cross-sectional studies
Energy expenditure
Energy requirements
Epidemiology
Fat-free body mass
Internal Medicine
Longitudinal studies
Medicine
Medicine & Public Health
Metabolic Diseases
Multivariate analysis
Muscles
Musculoskeletal system
Older people
Phase shift
Public Health
Sex
Skeletal muscle
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Summary:Background/Objectives Resting energy expenditure (REE) constitutes the largest component of total energy expenditure and undergoes an age-related decline that is unexplained by decreased fat-free mass. Phase angle (PhA) is a cellular health indicator that is possibly associated with REE. We investigated the association of REE and PhA in hospitalized older adults. Subjects/Methods This single-center, cross-sectional analysis utilized the baseline data from a prospective longitudinal study and included 131 eligible patients aged ≥70 years. The REE was measured using indirect calorimetry, and PhA and body composition were assessed using bioelectrical impedance. The association between REE, PhA, and body composition was examined, and REE was compared using previously reported PhA cutoff values. Results In this cohort with a mean (±standard deviation) age of 87.4 (±7.0) years, 34.4% of the participants were men. REE and PhA correlated strongly ( r : 0.562, p  
ISSN:0954-3007
1476-5640
DOI:10.1038/s41430-023-01370-z