Bone Abstracts

Objectives: The present study aims to evaluate the longitudinal association of fat mass (FM), fat free mass (FFM) with bone stiffness index (BSI) in European children and adolescents over 2 and 6 years follow-up. METHODS: We included children of the IDEFICS/I. Family cohort, who participated in repeated measurements of BSI using calcaneal quantitative ultrasound (QUS), body composition using skinfold thickness, sedentary behaviours (SB) and physical activity (PA) using self-ad...