Camões Miguel, Lopes Carla
Department of Hygiene and Epidemiology, University of Porto Medical School, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal.
Public Health Nutr. 2008 Aug;11(8):841-8. doi: 10.1017/S1368980007001309. Epub 2007 Dec 6.
To describe the relationship between dietary intake and different levels and types of physical activity (PA).
Cross-sectional evaluation of the EPIPorto study. Energy expenditure (metabolic energy equivalent tasks) and dietary intake during the past year were assessed using a PA questionnaire and a semi-quantitative food-frequency questionnaire, respectively.
Representative sample of adults in Porto, Portugal.
Data were analysed for 2404 Portuguese Caucasian adults, aged between 18 and 92 years.
For total PA, males who were active had significantly higher mean intake of energy (10.76 (2570.7) vs. 9.78 (2336.9) MJ/d (kcal/d), P < 0.001) and lower level of protein consumption (16.9 vs. 17.6 % of energy, P < 0.001) compared with sedentary males. In males, the association between total PA and energy intake remained after adjustment for age, education and body mass index. Similar results were observed when occupational activity was analysed. Concerning the energy expended in leisure time, in both genders, after adjustment for the previously described variables, a significant positive association was found between PA and intake of vitamin C (g/d): beta = 0.12, 99 % confidence interval (CI) 0.02, 0.21 for females and beta = 0.13, 99 % CI 0.03, 0.22 for males. Leisure-time activity in females was also positively associated with intakes of fibre, vitamin E, folate, calcium and magnesium, and negatively associated with saturated fat.
Higher levels of PA in leisure time were associated with higher intakes of micronutrients and lower intakes of saturated fat, particularly in females. For total and occupational PA, similar nutrient intake was observed between active and sedentary individuals.
描述饮食摄入与不同水平及类型的身体活动（PA）之间的关系。
对EPIPorto研究进行横断面评估。分别使用PA问卷和半定量食物频率问卷评估过去一年中的能量消耗（代谢能量当量任务）和饮食摄入。
葡萄牙波尔图成年人的代表性样本。
对2404名年龄在18至92岁之间的葡萄牙白种成年人的数据进行了分析。
对于总PA，与久坐不动的男性相比，活跃的男性平均能量摄入量显著更高（10.76（2570.7）对9.78（2336.9）兆焦/天（千卡/天），P<0.001），蛋白质消耗量水平更低（能量的16.9%对17.6%，P<0.001）。在男性中，调整年龄、教育程度和体重指数后，总PA与能量摄入之间的关联仍然存在。分析职业活动时也观察到类似结果。关于休闲时间消耗的能量，在调整上述变量后，在两性中均发现PA与维生素C摄入量（克/天）之间存在显著正相关：女性β=0.12，99%置信区间（CI）0.02，0.21；男性β=0.13，99%CI0.03，0.22。女性的休闲时间活动还与纤维、维生素E、叶酸、钙和镁的摄入量呈正相关，与饱和脂肪摄入量呈负相关。
休闲时间较高水平的PA与较高的微量营养素摄入量和较低的饱和脂肪摄入量相关，尤其是在女性中。对于总PA和职业PA，活跃个体和久坐个体的营养素摄入量相似。
