Bone Accrual in Children: Adding Substance to Surfaces

Bone accrual in children: adding substance to surfaces.

The mass of growing bones increases through changes in outer dimensions and through the net addition of tissue on inner bone surfaces. In this overview I examine bone accrual as it occurs on trabecular (inner) and periosteal (outer) surfaces. In the axial skeleton, the amount of trabecular bone increases during development, because trabeculae grow thicker as a result of bone remodeling with a p...

Physical Activity Interactions with Bone Accrual in Children and Adolescents

Exercise and bone mineral accrual in children and adolescents.

Osteoporosis is a serious skeletal disease causing an increase in morbidity and mortality through its association with age-related fractures. Although most effort in fracture prevention has been directed at retarding the rate of age-related bone loss and reducing the frequency and severity of trauma among elderly people, evidence is growing that peak bone mass is an important contributor to bon...

Adding Vibrotactile Feedback to Large Interactive Surfaces

Interactive surfaces and multi-touch tables are increasingly available outside academic contexts, and are entering, for instance, work or educational contexts. A large variety of applications exists for a multitude of tasks. For interacting with these applications, existing interaction concepts are often directly mapped to the multi-touch surface, which is often limited by physical constraints....

Increment in vitamin D level and bone mineral accrual in children with vitamin D deficiency

PURPOSE To compare different regimens of vitamin D with respect to its serum increment levels and bone mineral accrual in vitamin D-deficient children. METHODS Children identified as being vitamin D deficient (serum levels<20 ng/mL) were divided into 3 treatment groups by stratified block randomization (group 1, 4,000 IU/day of vitamin D3 plus 50 mg/kg/day calcium for 12 weeks; group 2, 30,00...