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Phase Angle As an Indicator of Nutritional Status: A Cross-Sectional Study on the Iranian Population Publisher



F Samadinian FATEMEH ; N Eshaghian NILOOFAR ; Mj Tarrahi Moahammad JAVAD ; R Amani REZA ; Me Akbari Mojtaba E ; F Shirani FATEMEH
Authors

Source: Journal of Health, Population and Nutrition Published:2025


Abstract

Background: Phase angle (PA), derived from bioelectrical impedance analysis, serves as an indicator of cellular health, membrane integrity, and hydration status. Despite its potential utility, the relationship between PA and nutritional and lifestyle factors has not been extensively studied in Iranian populations. This study aimed to investigate these associations in Iranian adults. Methods: This cross-sectional study included 239 university employees (85 men and 154 women) with a mean age of 43.32 years. Anthropometric indices and blood pressure were measured. PA was measured by the Body Composition Analyzer Mc780 MA device. Dietary intakes were assessed by using a validated 86-item food frequency questionnaire (FFQ). Physical activity was evaluated by the short form of the International Physical Activity Questionnaire (IPAQ). Associations between PA and study variables were analyzed using Pearson’s correlation and Linear Regression. Results: Significant positive correlations were observed between PA and several anthropometric and body composition indices, including weight, body mass index (BMI), waist circumference (WC), hip circumference (HC), fat-free mass (FFM), muscle mass, bone mass, and visceral fat. PA showed significant associations with dietary intake variables. Conclusions: This study highlights significant associations between PA and body composition and dietary factors in Iranian adults, with notable sex-based differences. These findings suggest that PA may be a valuable marker for assessing nutritional and cellular health. © 2025 Elsevier B.V., All rights reserved.
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