ArticleInternational journal of obesity (2005)2026
Body composition references, sarcopenia cutoffs, and prevalence in youth using bioelectrical impedance analysis.
Article in International journal of obesity (2005), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Sarcopenia in pediatric gastroenterology and hepatology: an updated review.Clinical and experimental pediatrics · 2026Article
- Identifying Individuals at Risk of Functional Decline Despite Preserved Muscle Mass: Insights from Appendicular Skeletal Muscle Mass and Handgrip Strength Discordance.Journal of clinical medicine · 2026Article
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Authors and funding
7 authors.
Funding
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Abstract
BACKGROUND/
objectivesReference data for bioelectrical impedance analysis (BIA) parameters remain limited in youth, making sarcopenia assessment challenging. This study aimed to establish BIA reference values and determine sarcopenia cutoff points and prevalence in youth. SUBJECTS/
methodsThis cross-sectional study analyzed 1451 youth aged 10-25 years who underwent BIA using data from a nationwide survey. Reference values for body composition were established using the least mean squares method, which estimates age-specific percentiles. Sarcopenia was defined using skeletal muscle mass index (SMI), fat-free mass-to-fat ratio (FFM-MFR), and appendicular skeletal muscle mass-to-fat ratio (ASM-MFR) with age- and sex-specific cutoff values.
resultsMuscle-related parameters, including fat-free mass, fat-free mass index, ASM, and SMI, increased during puberty in both sexes, with a more pronounced increase in males, followed by a plateau or gradual increase after adolescence. Fat-related parameters, including fat mass, fat mass index, and percentage body fat, decreased until age 14 years in males before increasing, whereas in females, they increased until adolescence and declined after early adulthood. The prevalence of sarcopenia was 2.05% in males and 1.04% in females based on SMI, 5.21% in males and 6.38% in females based on FFM-MFR, and 5.06% in males and 5.79% in females based on ASM-MFR.
conclusionsThis study established BIA-based body composition reference values for youth using nationally representative data, identified age- and sex-specific sarcopenia cutoff points and prevalence estimates, and highlighted age- and sex-specific differences. These findings provide a valuable resource for the early identification and management of sarcopenia in youth.
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