孕晚期妇女热能需要量的研究

ENERGY EXPENDITURE IN THE LATE STAGE OF PREGNANCY

本文以武汉市细纱值车、缝纫和幼儿教师妊娠6～9月妇女各10人及同工种、同年龄的非孕妇各10人为对象,用间接测热法测定各项劳动活动及生活活动能量代谢率,计算出24小时热能消耗量,同时,以膳食调查获得每人每日热能及各营养素摄入量。结果表明,值车,缝纫、幼儿教师每日热能消耗量孕妇为9.5474MJ(2281.89kcal/d)、10.1253MJ(2420.01 kcal/d)和8.7287MJ(2086.20kcal/d);非孕妇分别为9.4453MJ(2257.47kcal/d)、10.1281 MJ(2420.68kcal/d)和8.1567MJ(1949.50kcal/d)。值车、缝纫,幼儿教师每日热能摄入量孕妇为10.8909MJ(2603kcal/d)、11.2424MJ(2687kcal/d)和9.9830MJ(2386kcal/d),非孕妇为9.2215MJ(2204kcat/d)、10.4474 MJ(2497kcal/d)和8.6734MJ.(2073kcal/d)。同工种孕妇与非孕妇比较从事各项劳动活动、日常活动能量代谢率及24小时热能消耗量接近,经统计学处理差异无显著性意义,而每日热能摄入量孕妇明显高于非孕妇,差异有显著性意义。此外,同工种非孕妇热能消耗量与热能摄入量接近,而孕妇的热能摄入量高于其消耗量0.8363～1.2552 MJ(200～300kcal),差异有显著性意义。作者认为,晚期孕妇热能需要量似应在热能消耗量基础上增加0.8368MJ(200kcal/d)为宜。

The energy expenditure in the late stage of pregnancy was studied. The workers of three kinds including spinner, sewers and kindergartners were selected, and ten healthy pregnant women were matched to non-pregnant as subjects. Energy consumption was measured by indirect method and calculated from dietary survey. The results showed that the energy expenditure for spinner, sewer and kindergartner in pregnancy was 9.5474, 10.1253 and 8.7287 MJ/day, but for non-pregnant woman was 9.4453 10.1281 and 8.1567 MJ/day respectively. Calorie intake was 10.8910, 11.2424 and 9.9830 MJ/day for pregnant women, but 9.2215, 10.4474 and 8.6734 MJ/ day for the non-pregnant women respectively. The difference of energy consumptions between the pregnant and non-pregnant women was not significant, but the calorie intake for the pregnant women was signigicantly higher (0.8368 MJ/day) than the non-pregnant. According to the energy consumption, we recommend the calorie intakes in the late stage of pregnancy may increase 0.8368 MJ/day.