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目的分析体力活动与血脂的关系,为指导合理运动,防治血脂异常提供科学依据。方法招募40～65岁广州市民555例(男188例,女367例);用一周体力活动调查和三日体力活动记录2种方法调查体力活动情况;采空腹血样测定TC、TG、LDL和HDL。结果活动总能耗低、中、高分别为(748.2±185.5)、(1223.7±138.8)、(1843.5±314.3)kcal/d,运动能耗低、中、高分别为(164.9±96.9)、(504.6±101.7)、(989.2±262.5)kcal/d。按三分位法分3组,控制性别、年龄、BMI后协方差分析TC随活动总能耗的增高而降低,TC、LDL随运动能耗的增高而降低,组间比较差异有统计学意义(P<0.05)。将在职对象(n=201)的工作能耗分为低(691.2±117.1)kcal/d)、中(980.5±81.6)kcal/d)、高(1502.2±355.5)kcal/d)3组,控制性别、年龄、BMI后协方差分析,工作能耗中、高组的TC水平低于能耗低组(P<0.05)。结论适当增加活动总能耗有利于改善血脂,本研究涉及的工作能耗范围内,中度工作能耗比轻度工作能耗更有利于维持正常血脂。
Objective To analyze the relationship between physical activity and blood lipids and provide a scientific basis for guiding rational exercise and preventing and treating dyslipidemia. Methods A total of 555 males (188 males and 367 females) were recruited from 40 to 65 years old in Guangzhou. The physical activity was investigated by one-week physical activity survey and three-day physical activity recording. The levels of TC, TG, LDL and HDL . Results The total energy expenditure was low (748.2 ± 185.5), (1223.7 ± 138.8) and (1843.5 ± 314.3) kcal / d, respectively. The exercise energy expenditure was low, middle and high were (164.9 ± 96.9) and 504.6 ± 101.7), (989.2 ± 262.5) kcal / d. The patients were divided into three groups according to the tertile method. The control gender, age, covariance analysis after BMI TC decreased with the increase of the total energy consumption, TC and LDL decreased with the increase of exercise energy consumption, the difference was statistically significant (P <0.05). (N = 201) were divided into three groups: low (691.2 ± 117.1) kcal / d, middle (980.5 ± 81.6) kcal / d and high (1502.2 ± 355.5) kcal / d) Gender, age, BMI after covariance analysis, work energy consumption, high-level TC level was lower than the low-energy consumption group (P <0.05). Conclusions Appropriate increase of total energy expenditure is beneficial to the improvement of blood lipids. In the range of work energy consumption involved in this study, moderate work energy consumption is more conducive to maintaining normal blood lipid than mild work energy consumption.