Healthy Moms Program Helps Weight Management During Pregnancy

by Himabindu Venkatakrishnan on  August 29, 2014 at 9:21 PM Women Health News   - G J E 4
Obese women can manage their weight gain during pregnancy using conventional weight loss techniques like attending weekly group support meetings, advice on diet and nutrition, and keeping food and exercise journals, finds a new study.
 Healthy Moms Program Helps Weight Management During Pregnancy
Healthy Moms Program Helps Weight Management During Pregnancy

Results of the Healthy Moms study, published in Obesity, also show that obese women who limit their weight gain during pregnancy are less likely to have large-for-gestational age babies which can complicate delivery and increase the baby's risk of becoming obese later in life.

"Most interventions to limit weight gain among obese women during pregnancy have failed, but our study shows that with regular contact and support, these women can limit the amount of weight they gain, which will also reduce the risk of complications during and after pregnancy," said author Kim Vesco, MD, MPH, a practicing obstetrician/gynecologist and clinical investigator with the Kaiser Permanente Center for Health Research in Portland, Oregon.

Excessive weight gain during pregnancy has been linked to complications such as preeclampsia, gestational diabetes, an increased rate of C-sections, birthing injuries and weight retention after pregnancy.

Commonly used guidelines from experts at the Institute of Medicine suggest that women who are obese gain between 11 and 20 pounds during pregnancy. Based on observational studies that suggest weight maintenance or limited weight gain may result in better pregnancy outcomes, the Healthy Moms study advises obese women to maintain their weight during pregnancy.

"Most women in our intervention did gain some weight, but they gained and retained significantly less than women who did not participate in the intervention," said Dr. Vesco. "Even with support, it's difficult to limit weight gain during pregnancy, so women who are overweight or obese should aim for the lower end of the weight-gain range recommended by the Institute of Medicine, and they should seek support and nutritional advice to help meet their goals."

The Healthy Moms study included 114 obese women who are Kaiser Permanente Northwest members. Women who are obese have a body mass index of 30 and above—a woman who is 5 feet 5 inches tall would be considered obese at 180 pounds.

Half of the women participated in an intensive weight management program that included weekly group meetings, weigh-ins, personalized caloric goals, and food and exercise diaries. The other women were placed in a usual care group consisting of one meeting with a dietitian at which they received general information about diet and exercise for a healthy pregnancy.

By 34 weeks of pregnancy women who participated in the intensive, weekly group intervention had gained an average of 11 pounds, compared to 18 pounds for women who did not participate in the intervention. Two weeks after delivery, participants in the intervention weighed approximately 6 pounds less than they did when they were brought into the study, compared to an average weight gain of 3 pounds for women who did not participate in the intervention.

Women in both groups had about the same number of birthing and delivery complications, but only 9 percent of women in the intervention had large-for-gestational age babies, compared to 26 percent of women in the control group. These babies usually grow too fast in the womb, and at birth they weigh more than 90 percent of babies of the same sex and gestational age. For example, a baby boy born at 40 weeks would be considered large for his gestational age if he weighed more than 9 pounds, 3 ounces.

The intervention showed no adverse effects on pregnancy outcomes, but researchers say a larger study is needed to confirm this finding and to understand more about the impact of limited weight gain or weight loss on pregnancy outcomes.

Source: Eurekalert

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