Abstract
Soft tissues, areal bone mineral density and hip geometry estimates in active young boys: the PRO-BONE study
Highlights
The pubertal years are recognised as a critical period for bone accrual and for the modification of areal bone mineral density and bone structure (Wang et al 2009)
The results of this study suggest that lean mass (LM), and not fat mass (FM), is the stronger predictor of areal bone mineral density (aBMD) and hip geometry estimates in physically active boys
Despite consensus regarding the positive association of LM with bone mass (Hrafnkelsson et al 2013; Jeddi et al 2015; Mosca et al 2014; Vlachopoulos et al 2017), the role of FM in bone development during childhood and adolescence has not been investigated in highly active adolescents
Summary
The pubertal years are recognised as a critical period for bone accrual and for the modification of areal bone mineral density (aBMD) and bone structure (Wang et al 2009). The role of LM in bone development and maintenance is well understood, with mounting evidence suggesting that LM is a major positive contributor to bone mineral content (BMC), aBMD and bone microstructure in non-active children and adolescents (Gracia-Marco et al 2012; Hoy et al 2013; El Hage et al 2009; Farr et al 2014; Pietrobelli et al 2002; Hrafnkelsson et al 2013). Despite consensus regarding the positive association of LM with bone mass (Hrafnkelsson et al 2013; Jeddi et al 2015; Mosca et al 2014; Vlachopoulos et al 2017), the role of FM in bone development during childhood and adolescence has not been investigated in highly active adolescents. According to the “Functional Muscle-Bone-Unit” the largest physiological loads are caused by muscle contractions, which might be increased in highly active adolescents due to greater muscle forces produced during participation in activities
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