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视频简介：
本课程的目标是，向公众提供最新的有关营养方面的信息和话题，内容涵盖饮食因素对于癌症的影响作用，健康的饮食习惯，学校能提供的营养有哪些，咖啡因与癌症的联系，水果蔬菜与癌症预防等。通过本课程的学习，人们可以学习到健康的生活饮食习惯，在每天的饮食中防癌症于未然。
n. 计算
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- The educational materials presented here
- 今天展示的教育材料
- were developed by students and faculty
- 是由爱荷华州立大学营养学
- of the department of food science and human nutrition
- 和人体营养学系的
- at Iowa State University.
- 学生和老师提供的
- Funding for this project was provided by grants
- 该项目的资金由
- from the American Cancer Society Mid West
- 美国中西部地区癌症协会
- and the Lance Armstrong Foundation.
- 及兰斯，阿姆斯斯壮基金会提供
- The materials are intended for educational use
- 这些材料仅用于教学
- and are not meant to provide medical advice.
- 并非用以提供医疗指导
- We welcome your feedback about these materials.
- 欢迎大家对这些材料做出反馈
- Please use the evaluation survey link on the homepage
- 请用主页上提供的调查评价链接
- to provide your comments and suggestions.
- 提交你们的评价和建议
- Nutrition and exercise during pregnancy.
- 孕期营养及锻炼
- Many of you are wondering
- 在场的大多数人都在想
- how this presentation will affect your lives.
- 今天的演讲和自己的生活有什么关系呢
- First, typically everyone knows someone
- 首先，每个人肯定都认识一些孕妇
- who is pregnant or is going to become pregnant.
- 或者即将怀孕的女性
- With this knowledge, I hope to inform you
- 藉此，我希望告诉大家
- of health conscious choices that you can share
- 一些从健康角度出发的选择
- with people you know.
- 大家可以和认识的准妈妈们分享
- Second, not only is a proper diet and exercise
- 第二，正确的饮食和锻炼不仅对
- important for women during pregnancy,
- 孕妇非常重要
- but also everyone else.
- 对其他人也是如此
- These recommendations presented
- 今天讲到的建议
- will not only benefit someone who is pregnant,
- 不仅可以使孕妇受益
- but will also promote a good health of individuals.
- 也有助于每个人的健康
- Because health problems are on the rise,
- 由于健康问题越来越多
- it is important to understand how an improper diet
- 我们必须知道饮食不当
- can affect your health
- 会影响健康
- and create a wealth of diseases.
- 而且会引发一系列疾病
- By informing women who are pregnant
- 告诉孕妇
- or seeking to become pregnant about healthy choices,
- 或打算怀孕的女性一些健康的选择
- we can prevent diseases from occurring.
- 可以预防疾病
- It is a good way to start healthy nutrition habits
- 一个好方法是尽早养成健康的营养习惯
- early on so the mother can continue it
- 这样准妈妈们才能坚持
- throughout the child's life.
- 至宝宝出生
- There has been much debate
- 人们莫衷一是
- on the proper weight gain during pregnancy.
- 无法决断孕期到底该增加多少体重
- Weight gain depends on many factors
- 体重的增加基于很多因素
- including the pre-pregnancy BMI.
- 包括孕前身体质量指数BMI
- If BMI before pregnancy is low, a greater weight gain
- 如果怀孕前BMI很低，那么建议
- during the pregnancy is recommended.
- 在孕期体重多增加些
- For example, if BMI is less than 19.8,
- 例如，如果BMI低于19.8
- the recommended weight gain
- 建议增重
- is between 28 to 40 pounds.
- 28至40磅
- On the other hand, if BMI is above 29,
- 但如果BMI大于29
- the recommended weight gain
- 那么建议增重
- is a minimum of 15 pounds.
- 至少15磅
- The minimum of 15 pounds is based on the need
- 这一15磅的最小值基于
- to gain support tissues for the baby.
- 为婴儿获取支持组织的需要
- An estimate of where the weight gains occurs
- 预计了一些体重增加的部位
- in an average women includes the baby
- 对一般女性而言
- at seven and a half pounds, breast tissue 2 pounds,
- 婴儿重7.5磅，乳房组织2磅
- maternal stores, mainly protein and fat,
- 母亲的储蓄主要是蛋白质和脂肪
- which is seven pounds, placenta one and a half pounds,
- 达7磅，胎盘1.5磅
- uterus growth 2 pounds, amniotic fluid,
- 子宫增重2磅，羊水
- which is the water around the baby, 2 pounds,
- 也就是婴儿周围的水，重2磅
- additional maternal blood 4 pounds,
- 额外的母血重4磅
- and other body fluids 4 pounds.
- 其他体液重4磅
- To fully understand weight gain recommendations,
- 为了大家能够充分理解增重建议
- it is important to define terms.
- 定义一些词是非常重要的
- BMI is the abbreviation for Body Mass Index.
- BMI是身体质量指数的简写
- This is a measure of body fat
- 这一数值体现了
- based on height and weight.
- 基于身高和体重的脂肪含量
- To calculate, divide weight in pounds by height
- 计算方法是，体重磅数除以身高英寸平方
- in inches squared and multiply by 703.
- 然后再乘以703
- BMI calculation is the same for males and females.
- 男性和女性的BMI计算的方法一致
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