骨质疏松症是以骨质不正常的丢失、骨组织破坏并伴有骨折危险增加为特征的一种疾病 ( Mosby,2 0 0 2 )。该病通常会影响到全身骨骼 ,但最常见的是引起腕、脊椎和髋部的骨折 (股骨颈骨折 )。病因学和发生率　在英国大约有 30 0万人患有骨质疏松症。英国人进入 50岁以后 ,有 1 /3 Osteoporosis is a disease characterized by an abnormal loss of bone, destruction of bone tissue with an increased risk of fracture (Mosby, 2002). The disease usually affects whole body bones, but the most common are those that cause the wrists, spine, and hip (femoral neck fractures). Etiology and Incidence About 30 million people in the UK have osteoporosis. The British enter the age of 50, 1/3