Comprehensive evaluation of body composition in a wide age range of Iranian adults using bioelectrical impedance analysis: Tehran Lipid and Glucose Study

Autor: Mahdieh Mohamadzadeh, Majid Valizadeh, Farhad Hosseinpanah, Amirabbas Momenan, Maryam Mahdavi, Maryam Barzin, Feridoun Azizi
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Public Health Nutrition, Vol 27 (2024)
Druh dokumentu: article
ISSN: 13689800
1368-9800
1475-2727
DOI: 10.1017/S1368980023002835
Popis: Abstract Objective: To evaluate sex- and age-stratified body composition (BC) parameters in subjects with wide age range of 20–79 years. Design: Cross-sectional. Setting: Participants of Tehran Lipid and Glucose Study (TLGS). Participants: Two thousand nine hundred seventy participants met our inclusion criteria. They were divided into five age groups, and BC parameters were analysed based on sex and age using a bioelectrical impedance analyser (BIA). Result: The mean age of the participants was 42·1 ± 12·5 years, and 54 % of them were males. The mean BMI was 26·7 ± 3·7 kg/m2. Obesity indices were significantly higher in females (P < 0·001); however, skeletal muscle mass (SMM) and fat-free mass (FFM) were significantly higher in males (P < 0·001). Both SMM and FFM decreased significantly after the age of 50 years. Obesity indices significantly increased from the age group of 20–29 to 30–39 years in males and the age groups of 30–39 to 40–49 years and 40–49 to 50–59 years in females. The fat mass ratio (fat mass/SMM) showed two peaks in both sexes (after the ages of 30 and 50 years in males and 40 and 50 years in females). A strong correlation was found between BMI and percentage of body fat (r = 0·823 in females v. r = 0·768 in males). Conclusion: This is the first community-based study in the MENA region identifying sex- and age-stratified BC values using BIA. Our findings can be used as a reference for comparison in appropriate settings.
Databáze: Directory of Open Access Journals
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