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目的:了解我国中年人群体育锻炼(Exercise)与血脂水平的关系。方法:利用中国心血管流行病学多中心协作研究数据,选择北京、广州城乡人群3 482人,年龄35~59岁。分性别将体育锻炼情况分为3组,即无锻炼组、体育锻炼日均耗能(EEexer)中位数以下组即锻炼较少组和中位数以上组即锻炼较多组。采用调查问卷法收集平时体育锻炼的种类及持续时间,计算平时每日体育锻炼能量消耗(EEexer)。利用协方差分析评估体育锻炼能耗与血脂水平的关系。结果:在男、女性人群中,分别有47.1%(807/1712)和41.1%(727/1770)有体育锻炼。在控制年龄、城乡、受教育水平、吸烟、饮酒、体重指数及除体育锻炼以外的体力活动水平(EEPA)后,女性总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、非高密度脂蛋白胆固醇(non-HDL-C)、甘油三酯(TG)随活动分组增高呈降低趋势,其中LDL-C及non-HDL-C水平组间差异有统计学意义(P<0.05);与无体育锻炼组比,女性体育锻炼日均耗能中位数(EEexer)>2.62(MET·h)/d以上组LDL-C及non-HDL-C水平降低约0.14 mmol/L(P=0.0063)、0.14 mmol/L(P=0.0155);男性中在调整上述因素后,TC、LDL-C、non-HDL-C、TG随着分组水平增高而呈降低的趋势,但差异无统计学意义。高密度脂蛋白胆固醇(HDL-C)在男/女性中,组间差别均无统计学意义。结论:研究显示社区女性中年人群中体育锻炼能耗较高组LDL-C、non-HDL-C水平显著低于无体育锻炼组,该作用独立于工作中及其他体力活动。
Objective: To understand the relationship between exercise and serum lipids in Chinese middle-aged population. Methods: By using the data of multicentre collaborative study of cardiovascular epidemiology in China, 3 482 urban and rural populations in Beijing and Guangzhou were selected, aged from 35 to 59 years. According to gender, physical activity was divided into three groups, namely no exercise group, the average daily exercise energy consumption (EEexer) the following groups that less exercise and median more than the group that exercise more groups. The questionnaire method was used to collect the types and durations of usual physical exercises and to calculate the daily energy expenditure (EEexer) of physical exercises. Using covariance analysis to evaluate the relationship between physical activity energy consumption and blood lipid level. RESULTS: Among the male and female population, 47.1% (807/1712) and 41.1% (727/1770) had physical activity respectively. After taking control of age, urban and rural areas, educational attainment, smoking, drinking, body mass index and physical activity levels (EEPA) except for physical activity, the levels of total cholesterol (TC), low density lipoprotein cholesterol (LDL- The levels of non-HDL-C and triglyceride tended to decrease with the increase of active group. The difference between LDL-C and non-HDL-C was statistically significant (P <0.05). Compared with no physical exercise group, the average daily energy expenditure (EEexer)> 2.62 (MET · h) / d in women’s physical exercise decreased LDL-C and non-HDL-C by about 0.14 mmol / L (P = 0.0063), 0.14 mmol / L (P = 0.0155). After adjustment for the above factors, the levels of TC, LDL-C and non-HDL-C and TG decreased with the increase of grouping in males significance. High-density lipoprotein cholesterol (HDL-C) in men / women, no significant difference between groups. CONCLUSIONS: The study showed that the LDL-C and non-HDL-C levels of middle-aged women with high exercise energy consumption were significantly lower than those of non-physical exercise group in middle-aged women. This effect was independent of work and other physical activities.