Effect of distinct impact loading sports on body composition in pre-menarcheal girls.

Introduction. - The aim of this preliminary work was to explore the effect of distinct impact loading sport and different amount (h/w) of impact activity on body composition of pre-menarcheal girls.Subjects and methods. - This study included 30 pre-menarcheal girls (aged 8.0-12.9 years) training for at least 1 year in volleyball (VOLLEY, n=10) or artistic gymnastics at high (HGYM, n=10) and low (LGYM, n=10) amount (h/w) of training. Body composition (bone mineral content [BMC], fat-free soft tissue mass [FFST], fat mass [FM], and %FM) was assessed by dual-energy X-ray absorptiometry (DXA) at the total body (TB) and regional (arms, legs, trunk) level as well as specific axial skeleton sites (thoracic and lumbar spine, pelvis).Results. - After adjusting for body mass and stature, TB composition measurements were all significantly (P