Mediation effects of lean mass and fat mass on the relationship between body mass index and handgrip strength

Objective This study aimed to assess the mediation effects of lean mass and fat mass on the relationship between body mass index (BMI) and handgrip strength (HGS) in adolescents. Method The sample included 118 adolescents (60 girls) aged 10–14 years. Body composition, determined from lean mass (LM)...

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Bibliographic Details
Published in:American journal of human biology 2024-04, Vol.36 (4), p.e24004-n/a
Main Authors: Bim, Mateus Augusto, Pinto, André de Araújo, Claumann, Gaia Salvador, Pelegrini, Andreia
Format: Article
Language:English
Subjects:
Accelerometers
Adolescents
Body composition
Body fat
Body mass index
Body size
Muscle strength
Physical activity
Statistical analysis
Strength testing
Teenagers
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Summary:Objective This study aimed to assess the mediation effects of lean mass and fat mass on the relationship between body mass index (BMI) and handgrip strength (HGS) in adolescents. Method The sample included 118 adolescents (60 girls) aged 10–14 years. Body composition, determined from lean mass (LM) and fat mass (FM), was measured by dual‐energy x‐ray absorptiometry. HGS was measured using a digital dynamometer. Moderate‐to‐vigorous physical activity and sexual maturation, treated as covariates, were evaluated by accelerometry and pubic hair development, respectively. Spearman correlation and simple mediation analysis were used for statistical analysis. Results A positive relationship was observed between BMI and HGS (rho = .364, p 
ISSN:1042-0533
1520-6300
1520-6300
DOI:10.1002/ajhb.24004