Epidemiological study on the effect of physical activity to physiological function and aging in elderly.

我们对老年人习惯性体育活动与身体健康水平的关系进行流行病学研究，以明确体育活动在老年人健康促进和慢性病预防中的作用。首先，我们从生活方式、体质水平和临床实验室水平三个方面对到访8个健康促进中心的3132人进行了调查。体质水平较高的人在目前和青年时期都有习惯性的体育活动。在健康促进中心，他们的血糖和血压水平较低，肺功能水平较高。其次，我们研究了身体健康水平与全因死亡风险、心血管疾病和癌症之间的关系。7 286人访问了7个健康促进中心。体能测试包括握力、侧步、垂直跳跃、躯干柔韧性和躯干动态屈曲。通过邮件确定了3117名男性和3142名女性。平均随访时间为7.1年，共观察44,318人年。男性死亡119人，女性死亡45人。侧步、垂直跳跃、动态躯干弯曲和握力水平较低的男性全因死亡风险较高。垂直跳高水平较低的男性死于心血管疾病的风险较高。在女性中，身体健康水平和死亡率之间没有关系。提示身体素质水平在健康促进中起着重要作用。第三，研究食物摄取量与体质水平的关系。食物摄入量与身体健康水平、习惯性体育活动和心血管疾病的危险因素有关。

We carried out the epidemiological study on the relationship between habitual physical activities and physical fitness level in elderly in order to clear the role of physical activities in health promotion and prevention of chronic diseases in elderly.First, we examine 3,132 persons who visited eight Health Promotion Centers into life-style, physical fitness level and clinical laboratory level. Persons with higher physical fitness level have the habitual physical activities at present and in their youth. They had also lower level of blood sugar and blood pressure, higher level of pulmonary function at visiting to the Health Promotion Centers.Second, We study the relationship between physical fitness level and risk of death from all-cause, cardiovascular diseases, and cancer. 7,286 persons who visited seven Health Promotion Centers. Physical fitness tests were measured by grip strength, side step, vertical jump, trunk flexibility, and dynamic trunk flexion. 3,117 men and 3,142 women were ascertained by mail. Average length of followed-up was 7.1 years, for a total of 44,318 person-years of observation. there were 119 deaths in men and 45 deaths in women. Males who had lower level of side step, vertical jump, dynamic trunk flexion and grip strength had an excess risk of all-cause death. Males with lower level of vertical jump had an excess risk of death from cardiovascular diseases. No relationship was seen between physical fitness level and an excess death in women. It is suggested that physical fitness level played an important role in health promotion.Third, we study the relationship between the food intake and physical fitness level. Food intake is related to the physical fitness level, habitual physical activities and risk factors for cardiovascular diseases.