Pregnant women sometimes like a lazy exercise for fear of something happening to her pregnancy. And sports is required during pregnancy to prevent babies born with excess weight and get healthy babies.

Researchers from Norway shows that pregnant women who exercise regularly have less risk for having a baby with excess weight. This does not depend on how much exercise does the mother during pregnancy.

The woman who gave birth to babies with excess body weight in the sense that weigh more than 4 pounds or 8 pounds, regardless of how long, risk has a number of complications.

"The risks faced by these women are experiencing heavy bleeding after childbirth, and have a greater risk of obesity in the future," said Dr. Mari Katrine owe from the Norwegian School of Sport Sciences, was quoted as saying by Reuters.

The study involved 36,869 women with singleton pregnancies based on data from the Norwegian Mother and Child Cohort Study and the Medical Birth Registry of Norway. Among these pregnant women reported that women exercise at least 3 times a week after reaching the age of 17 weeks of pregnancy, reduce the risk of having a baby with excess body weight by 25 percent.

While women who exercise at least 3 times a week after 30 weeks of gestation, reducing the risk of having a baby with excess weight by 22 percent. The amount of exercise performed before pregnancy did not affect the baby's weight during pregnancy.

The researchers added that performed exercise during pregnancy can help prevent the fetus from growing too large, a way to help maintain the body's ability to keep blood sugar levels under control. Walking is the safest exercise for pregnant women.

If you have high blood sugar and diabetes during pregnancy is a risk factor that has most babies with excess body weight. Until now there is no definitive standard for determining what amount of exercise needed by pregnant women.

Given the adverse effects that can be incurred if the baby is born with excess weight, it should be recommended for pregnant women to exercise regularly. Thus avoiding complications during childbirth and children become obese later.