运动锻炼是预防中年人骨质退化的一种主要因素。作者用测定磷吸收的方法,测定了144名35岁～65岁妇女骨矿物质含量,测定部位为两侧桡骨、尺骨和肱骨。随访3.5年～4年。144人中,62人为对照组,平均年龄51岁,82人为锻炼组,平均年龄50岁。锻炼 Exercise training is a major factor in preventing bone degeneration in middle-aged people. The authors measured the bone mineral content of 144 women aged 35 to 65 years using a method of measuring phosphorus uptake measured on both sides of the radius, ulna and humerus. Follow-up 3.5 years to 4 years. Of the 144 people, 62 were control subjects, with an average age of 51 years and 82 persons exercising group, with an average age of 50 years. work out