Association between handgrip strength and bone mineral density of Brazilian children and adolescents stratified by sex: a cross-sectional study

• Autor(a) principal: Saraiva, Bruna Thamyres Ciccotti [UNESP]
• Data de Publicação: 2021
• Outros Autores: Agostinete, Ricardo Ribeiro [UNESP], Freitas Júnior, Ismael Forte [UNESP], de Sousa, Daniel Eduardo Rodrigues [UNESP], Gobbo, Luis Alberto [UNESP], Tebar, William Rodrigues [UNESP], Christofaro, Diego Giulliano Destro [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1186/s12887-021-02669-1; http://hdl.handle.net/11449/208624
• topic: Adolescent; Bone density; Child; Health; Strength

Background: To examine the association of handgrip strength (HGS) and bone mineral density (BMD) of Brazilian children and adolescents. Methods: The sample included 243 children and adolescents aged from 4 to 15 years (9.3 ± 2.2 years), 171 males and 72 females. The following measurements were performed: weight, height, trunk length, and years to the peak height velocity (PHV). The percentage lean soft tissue (PLST), percentage fat mass (PFM), and BMD were obtained using Dual Energy X-ray Absorptiometry (DXA) and HGS using a dynamometer. Results: In girls, HGS was positively associated with higher BMD, even after the adjustments, by arms [β = 0.006; p < 0.001], legs [β = 0.014; p < 0.001], pelvis [β = 0.019; p < 0.001], trunk [β = 0.013; p < 0.001], spine [β = 0.013; p = 0.008], and total body [β = 0.009; p < 0.001]. The same occurred in the boys, even after the adjustments a positive relationship was observed, whereas higher HGS was related to greater BMD in arms [β = 0.006; p < 0.001], legs [β = 0.017; p < 0.001], pelvis [β = 0.014; p < 0.001], trunk [β = 0.009; p < 0.001], spine [β = 0.008; p < 0.001], and total body [β = 0.007; p < 0.001]. Conclusion: HGS was positively associated to BMD in boys and girls, regardless of age, PHV, PLST, and PFM.