New aspects of bone and muscle diagnostics. New aspects of biochemical markers of bone turnover in paediatrics (P.M. Crofton). New aspects of bone densitometry (C.-C. Gluer et al .). The analysis of muscle strength (G.-P. Bruggemann). New insights about the relationship between bone strength and muscle strength (H. Schieszl, J. Willnecker). Prevention of osteoporosis . Osteoporosis - epidemiology, clinical relevance and prevention in adulthood (J.D. Ringe). Skeletal growth in a nutrition perspective: genetic and endocrine interaction (V. Matkovic et al .). Puberty and bone development. Influence of sex steroids on bone (J. Agbenu, E.M. Nitsche, K. Kruse). Bone markers and the increase of bone density in pubertal girls (C.M. de Ridder et al .). Timing of puberty and skeletal development (F. Rauch, E. Schonau). Bone mass in anorexia nervosa patients (M. Carrascosa et al ). Influence of physical activity and nutrition on bone development . Mineral intake and urinary excretion in healthy German children and adolescents (F. Manz et al .). Milk abstinence since early childhood, intestinal lactase activity and lumbar spine bone mineral density (P. Kann, R. Piepenburg, J. Beyer). Computer kids: lack of movement and physical fitness in childhood (W. Krause, H. Richter). Influence of physical activity in childhood on bone status in late adulthood (B. Piepkorn et al .). Development of the muscle and bone system in chronic diseases . Skeletal problems in children with malignancies (P. Arikoski et al .). Bone mineral density in young adult survivors of childhood lymphoblastic leukaemia (J.J.G. Hoorweg-Nijman et al .). Bone development in inherited metabolic disorders (B. Schwahn et al .). Bone mineralization in childhood diabetes: a review of densitometric studies (J. De Schepper, O. Louis). Bone mineral density in children with asthma treated with inhaled corticosteroids (K. Nowacka et al .). Bone development in juvenile rheumatoid arthritis (M.L. Bianchi et al .). Thyroid hormones and bone mineralization in children and adolescents (F. Peter, A. Muzsnai, I. Kantor). The functional muscle-bone-unit in health and disease (E. Schonau et al .). Broadband ultrasound attenuation at the calcaneum in children with cerebral palsy-relationship to mobility status and dietary calcium intake (M.Z. Mughal et al .). Effects of growth hormone therapy on bone metabolism in patients with cystic fibrosis (CF)(D. Schnabel et al .). Prevention of renal osteopathy in children and adolescents with chronic renal failure (B. Lettgen). The effect of recombinant human growth hormone on body composition (bone mass and bone metabolism) in adults with childhood-onset growth hormone deficiency (M. Ruiz-Echarri et al .). Osteoporosis in primary bone disorders. Determination of bone mass in idiopathic juvenile osteoporosis ( M. Olszaniecka et al .). Idiopathic juvenile osteoporosis (N.J. Shaw, R.M. Francis, A.M. Sutcliffe).