لینک دانلود و خرید پایین توضیحات دسته بندی : وورد نوع فایل : .doc ( قابل ویرایش و آماده پرینت ) تعداد صفحه : 15 صفحه قسمتی از متن .doc : Physical Activity and Bone Measures in Young Children Received Aug 14, 2000; accepted Nov 20, 2000. Objectives. Physical activity has a beneficial effect on bone development in circumpubertal children, although its effect on younger children is uncertain. In this cross-sectional study, we examined associ ...