Women are always eager to observe the canons of beauty. Equally important in this case has a beautiful figure and ideal weight. But no less important is the weight gain during pregnancy. How many pregnant women will add kilos during childbearing depends on its development and future health and condition of the woman. Excessive weight gain during pregnancy, as well as the lack of it, is equally harmful to the fetus and the expectant mother. The claim that the pregnant woman should "eat for two" is now considered unreasonable and leads to abnormal weight gain with all the ensuing negative consequences.
Normal weight gain during pregnancy
During pregnancy, the female body is constantly increasing body weight. But weight gain is not uniform and depends on many factors. In the first half of pregnancy, a woman gains weight slowly, but after twenty weeks of body weight increases more rapidly. First of all, weight gain due to the volume of amniotic fluid, which rapidly increases with the tenth week of pregnancy. For example, the amount of amniotic fluid at ten weeks was 30 mL, twenty weeks - 300 ml of thirty weeks - 600 ml, and the end of pregnancy 1000-1500 ml.
Also, to increase body mass plays a role of increasing the uterus. In the first half of pregnancy, uterine weight increases due to the growth of muscle fibers, and the second half by stretching the fibers. In addition, the weight of the pregnant increases due to the growing placenta (its mass is proportional to the weight of the child) and fat. The amount of fat tissue increases in the anterior abdominal wall, thighs and buttocks. The mammary gland during pregnancy and increase in size (in part due to proliferation of glandular tissue, partly because of the increase of adipose tissue).
The most favorable weight gain during pregnancy is eight to twelve kgilogramm. But these figures are relative and depend on body mass index (BMI), which is calculated before pregnancy, and many other factors.
Influence of body mass index on weight gain during pregnancy
To determine body mass index values needed growth and initial weight. Calculating BMI is as follows: weight (in kg) must be divided by height in meters squared. For example, the weight is 60 kg, height 170 cm (1 to 7 m), the calculation formula: 60: 1, 7 (2) = 20. Number 20, and 0 is the body mass index. BMI less than 19, 8 indicates a low weight, 19, 8-26, 0 corresponds to a normal weight, while increasing BMI over 26, 0 means overweight.
Women with high body mass during pregnancy is recommended low-calorie diet as overweight not only creates difficulties in determining the duration of pregnancy and fetal growth control, but also threatens to increase blood pressure
Blood pressure - dangerous if his swing?
and the birth of the largest fruit.
Women who are underweight during pregnancy should eat hard, and it is desirable to defer pregnancy until the corresponding weight gain. Interesting fact: weight gain during pregnancy is greater, the smaller the weight of the woman.
Thus, forty weeks of pregnancy, a woman with a BMI of 19 yen, 8 should add 15, 2 kg, a woman with a BMI of 19, 8-26, 0-13, 6 kg, and overweight women, respectively, not more than 9, 1 kg.
Factors influencing weight gain
The increase in body weight during pregnancy is affected by the following reasons:
- age (the older the woman, the greater the tendency to gain weight);
- weight loss due to early toxicity (in the later stages of the body tends to compensate for the lack of weight);
- large fruit (weight accordingly increases the placenta);
- multiple pregnancy;
- gestosis (edema occur as a result of fluid retention in the body).
The principles of a balanced diet during pregnancy
As noted above, overeating or malnutrition during pregnancy are equally harmful for women and children. The diet should limit salt, spicy foods, meats, bystrousvaivaemye carbohydrates (white bread, cakes, creams). The daily amount of food must be divided into small portions, and increase the frequency of food intake (six to seven times). Limit fluid is not necessary, the daily volume it should be 1, 5 liters. When abnormal weight gain doctor prescribes fasting days (no more than twice a week). The diet of pregnant women should contain all the necessary proteins, fats, carbohydrates, vitamins and minerals.