Trajectory of weight changes in the first 6 weeks postpartum

Factors Associated With Postpartum Weight Retention in African Women: A Systematic Review

Background and Objective:

The obesity epidemic among women in Africa is a health problem, and many studies attribute it to childbearing. However, most studies of postpartum weight retention (PPWR) occur in high-income countries. Therefore, this review sought to identify the potential factors affecting PPWR among African women.

Methods:

Four databases were searched from January 2000 to December 2020: Medline/PubMed, Google scholar, Ajol research, FreeFullPDF. The quality of included studies was assessed using the Newcastle Ottawa Scale.

Results:

Fifteen studies (5 from west, 4 from south, 3 from east, 2 from central, and 1 from north) were included: 8 cohort and 7 prospective cohort studies. Two studies examined the effect of obesity and weight gain during pregnancy on PPWR, 3 studies assessed the effect of childbirth, 4 examined the effect of breastfeeding, 4 assessed the impact of morbidities such as HIV, and 2 looked at food insecurity. Five studies demonstrated that postpartum weight is due to residual pregnancy weight gain and childbirth weight gain and is accentuated as parity increases (n = 2). Breastfeeding has a controversial effect, while morbidity (n = 4) and food insecurity (n = 4) contributed to weight loss. The variation in weight was also influenced by cultural practices (n = 1), prepregnancy weight (n = 1), and socioeconomic status (n = 1). On all domains, only 3 included studies were of good quality.

Conclusions:

Pregnancy weight gain, childbirth, breastfeeding, morbidity, and food insecurity were associated with PPWR. However, preexisting factors must be considered when developing PPWR modification strategies. In addition, due to the limited number of studies included, robust conclusions cannot be drawn.

Text messaging to help women with overweight or obesity lose weight after childbirth: the intervention adaptation and SMS feasibility RCT

Background

There is a need to develop weight management interventions that fit seamlessly into the busy lives of women during the postpartum period.

Objective

The objective was to develop and pilot-test an evidence- and theory-based intervention, delivered by short message service, which supported weight loss and weight loss maintenance in the postpartum period.

Design

Stage 1 involved the development of a library of short message service messages to support weight loss and weight loss maintenance, with personal and public involvement, focusing on diet and physical activity with embedded behaviour change techniques, and the programming of a short message service platform to allow fully automated intervention delivery. Stage 2 comprised a 12-month, single-centre, two-arm, pilot, randomised controlled trial with an active control.

Setting

This study was set in Northern Ireland; women were recruited via community-based approaches.

Participants

A total of 100 women with overweight or obesity who had given birth in the previous 24 months were recruited.

Interventions

The intervention group received an automated short message service intervention about weight loss and weight loss maintenance for 12 months. The active control group received automated short message service messages about child health and development for 12 months.

Main outcome measures

The main outcomes measured were the feasibility of recruitment and retention, acceptability of the intervention and trial procedures, and evidence of positive indicative effects on weight. Weight, waist circumference and blood pressure were measured by the researchers; participants completed a questionnaire booklet and wore a sealed pedometer for 7 days at baseline, 3, 6, 9 and 12 months. Outcome assessments were collected during home visits and women received a voucher on completion of each of the assessments. Qualitative interviews were conducted with women at 3 and 12 months, to gather feedback on the intervention and active control and the study procedures. Quantitative and qualitative data were used to inform the process evaluation and to assess fidelity, acceptability, dose, reach, recruitment, retention, contamination and context.

Results

The recruitment target of 100 participants was achieved (intervention, n = 51; control, n = 49); the mean age was 32.5 years (standard deviation 4.3 years); 28 (28%) participants had a household income of < £29,999 per annum. Fifteen women became pregnant during the follow-up (intervention, n = 9; control, n = 6) and withdrew from the study for this reason. At the end of the 12-month study, the majority of women remained in the study [85.7% (36/42) in the intervention group and 90.7% (39/43) in the active control group]. The research procedures were well accepted by women. Both groups indicated a high level of satisfaction with the short message service intervention that they were receiving. There was evidence to suggest that the intervention may have a positive effect on weight loss and prevention of weight gain during the postpartum period.

Limitations

The interviews at 3 and 12 months were conducted by the same researchers who collected other outcome data.

Conclusions

An evidence- and theory-based intervention delivered by short message service was successfully developed in conjunction with postpartum women with overweight and obesity. The intervention was acceptable to women and was feasible to implement in the 12-month pilot randomised controlled trial. The progression criteria for a full randomised controlled trial to examine effectiveness and cost-effectiveness were met.

Future work

Some minor refinements need to be made to the intervention and trial procedures based on the findings of the pilot trial in preparation for conducting a full randomised controlled trial.

Trial registration

Current Controlled Trial ISRCTN90393571.

Funding

This project was funded by the National Institute for Health Research (NIHR) Public Health Research programme and will be published in full in Public Health Research; Vol. 8, No. 4. See the NIHR Journals Library website for further project information. The intervention costs were provided by the Public Health Agency, Northern Ireland.

Disseminating and implementing a lifestyle-based healthy weight program for mothers in a national organization: a study protocol for a cluster randomized trial

Background

Excessive weight gain among young adult women age 18–45 years is an alarming and overlooked trend that must be addressed to reverse the epidemics of obesity and chronic disease. During this vulnerable period, women tend to gain disproportionally large amounts of weight compared to men and to other life periods. Healthy Eating and Active Living Taught at Home (HEALTH) is a lifestyle modification intervention developed in partnership with Parents as Teachers (PAT), a national home visiting, community-based organization with significant reach in this population. HEALTH prevented weight gain, promoted sustained weight loss, and reduced waist circumference. PAT provides parent–child education and services free of charge to nearly 170,000 families through up to 25 free home visits per year until the child enters kindergarten.

Methods

This study extends effectiveness findings with a pragmatic cluster randomized controlled trial to evaluate dissemination and implementation (D&I) of HEALTH across three levels (mother, parent educator, PAT site). The trial will evaluate the effect of HEALTH and the HEALTH training curriculum (implementation strategy) on weight among mothers with overweight and obesity across the USA (N = 252 HEALTH; N = 252 usual care). Parent educators from 28 existing PAT sites (14 HEALTH, 14 usual care) will receive the HEALTH training curriculum through PAT National Center, using PAT’s existing training infrastructure, as a continuing education opportunity. An extensive evaluation, guided by RE-AIM (Reach, Effectiveness, Adoption, Implementation, Maintenance), will determine implementation outcomes (acceptability, adoption, appropriateness, feasibility, fidelity, and adaptation) at the parent educator level. The Conceptual Framework for Implementation Research will characterize determinants that influence HEALTH D&I at three levels: mother, parent educator, and PAT site to enhance external validity (reach and maintenance).

Discussion

Embedding intervention content within existing delivery channels can help expand the reach of evidence-based interventions. Interventions, which have been adapted, can still be effective even if the effect is reduced and can still achieve population impact by reaching a broader set of the population. The current study will build on this to test not only the effectiveness of HEALTH in real-world PAT implementation nationwide, but also elements critical to D&I, implementation outcomes, and the context for implementation.

Trial registration

https://ClinicalTrials.gov, NCT03758638. Registered 29 November 2018

Electronic supplementary material

The online version of this article (10.1186/s13012-019-0916-0) contains supplementary material, which is available to authorized users.

Weight loss after pregnancy: challenges and opportunities

It is important to pay attention to weight management before and between pregnancies, as women have an increased risk of weight gain during the reproductive years. Having a baby is a life-changing event for women and the challenge of weight management amidst this period of major physiological, psychological and social change should not be underestimated. However, the postpartum period offers an opportune time for lifestyle interventions, as women may have heightened awareness of their own and their wider families' health. Systematic reviews indicate that interventions including both diet and physical activity along with individualised support and self-monitoring are more likely to be successful in promoting postpartum weight loss. However, high levels of attrition and poor engagement have been an issue in previous trials in this area. Since postpartum women are difficult to reach and retain, future research must consider how to make weight-management interventions an attractive and attainable proposition for women who are juggling multiple, competing demands on their time. Ideally, intervention approaches need to be flexible and allow sustained contact with women, to facilitate a focus on maintenance of weight loss, as well as opportunities for re-engagement after life events that may disrupt weight-management progress. Using technology to deliver or support interventions holds promise but trials are needed to generate a range of appealing, effective and scalable options for postpartum women. What works at other life stages may not necessarily work here owing to specific barriers to weight management encountered in the postpartum period.

Association of early pregnancy body mass index with post-partum weight change among African-American women

Post-partum weight retention is relatively common and increases the risk for future obesity. Women who are overweight or obese prior to pregnancy, or who gain excessively during pregnancy, are more likely to retain weight post-partum. Much of the existing research is limited by a single post-partum body-weight measure and therefore cannot distinguish post-partum weight retention from post-partum weight accrual. This study tested the hypothesis that early pregnancy body mass index (BMI) is positively associated with post-partum weight change, independent of gestational weight gain (GWG) and breastfeeding (BF) among African-American women, a demographic group with greater risk for obesity. Healthy African-American women (n = 32) were weighed at 2 weeks and 3 months post-partum to derive post-partum weight change. Data from prenatal care records were retrieved to calculate BMI at the first prenatal care visit and GWG. BF status at 2 weeks post-partum was self-reported. Early pregnancy BMI was positively associated with post-partum weight change (partial r = 0.53, P < 0.005), independent of GWG and BF status at 2 weeks post-partum. These results extend the literature by suggesting that the association between early pregnancy BMI and post-partum weight retention may be at least partially attributable to the accrual of new weight during the post-partum period. Future research in a larger and more diverse cohort is warranted and should explore potential mechanisms contributing to post-partum weight change.

Postpartum Weight Retention Risk Factors in a Taiwanese Cohort Study

OBJECTIVE

Excess postpartum weight retention (PPWR) is related to long-term weight gain. Therefore, this study was conducted to identify the risk factors for PPWR to provide guidance for preventive strategies.

METHODS

This cohort study surveyed 461 women who gave birth at a medical center between March 2014 and March 2016. The participants completed a questionnaire within 1 month of delivery, and their 6-month postpartum weight was tracked.

RESULTS

The results showed that the mean pre-pregnancy BMI was 21.4 ± 3.3 kg/m2, and the mean gestational weight gain (GWG) was 12.8 ± 4.1 kg. The mean PPWR was 4.6 ± 3.5 kg at 1 month and 2.1 ± 3.3 kg at 6 months. Multivariate analysis revealed that GWG (adjusted OR: 1.92 (1.70-2.17)), pre-pregnancy BMI (adjusted OR: 0.85 (0.77-0.94)), and exclusive breastfeeding (adjusted OR: 0.55 (0.32-0.94)) were significantly correlated with a 1-month PPWR higher than the median value. In addition, GWG (adjusted OR: 1.30 (1.22-1.39)) and exclusive breastfeeding (adjusted OR: 0.37 (0.24-0.58)) were significantly correlated with a 6-month PPWR higher than the median value.

CONCLUSION

Our findings indicate that the key to reducing PPWR is to control GWG and engage in exclusive breastfeeding.

Managing Gestational Weight Gain: Obstetricians' Perceived Barriers and Interventions

To support optimal health outcomes during pregnancy, understanding obstetricians' (OBs) recommendations for and barriers to managing gestational weight gain (GWG) can benefit childbirth educators. This mailed survey examined OBs' practices (n = 63) for managing GWG along with perceived barriers. The most frequent recommendations were (a) increase activity (76.2%), (b) aerobic activity (63.5%), (c) patient education about weight management (61.9%), (d) increase fiber intake (61.3%), and (e) use of guidelines for weight gain (58.7%). Self-tracking weight gain charts were the least used. Greatest barriers to GWG management were (a) patients not interested in changing behavior (77.8%), (b) high relapse rates (66.7%), (c) lack of community resources (60.3%), (d) patients cannot afford referrals (58.7%), and (e) lack of time (53.9%).

The Relationship Among Breastfeeding, Postpartum Depression, and Postpartum Weight in Mexican American Women

OBJECTIVE

To determine if symptoms of postpartum depression and postpartum weight varied according to the level of breastfeeding among women of Mexican origin at 1 month and 6 months postpartum.

DESIGN

Secondary quantitative analysis to study the differences in postpartum weight and depression among the mothers in the study who breastfed and those who did not.

SETTING

A heavily Hispanic community located in a major Southwestern U.S. city.

PARTICIPANTS

Women of Mexican origin (N = 150) who enrolled during their third trimesters in a local Special Supplemental Nutrition Program for Women, Infants, and Children clinic and were followed for 6 months.

METHODS

Weight was measured at 1 month and at 6 months postpartum at home visits with validated digital scales. Breastfeeding was measured according to World Health Organization criteria and recorded after monthly phone calls. Depression was measured at home visits at 1 month and 6 months with the Edinburgh Postnatal Depression Scale.

RESULTS

At 6 months postpartum, participants who did not breastfeed had the highest scores on the Edinburgh Postnatal Depression Scale; participants who breastfed nonexclusively had the lowest scores (p = .067). At both time points, there was a significant difference in weight (p = .017) between women who were doing any breastfeeding and women who were not breastfeeding.

CONCLUSION

Breastfeeding, even if not exclusive, contributed to lower depression scores and significantly lower postpartum weight among this sample of Mexican American women.

Obesity and mental disorders during pregnancy and postpartum: a systematic review and meta-analysis

OBJECTIVE

To evaluate the prevalence and risk of antenatal and postpartum mental disorders among obese and overweight women.

DATA SOURCES

Seven databases (including MEDLINE and ClinicalTrials.gov) were searched from inception to January 7, 2013, in addition to citation tracking, hand searches, and expert recommendations.

METHODS OF STUDY SELECTION

Studies were eligible if antenatal or postpartum mental disorders were assessed with diagnostic or screening tools among women who were obese or overweight at the start of pregnancy. Of the 4,687 screened articles, 62 met the inclusion criteria for the review. The selected studies included a total of 540,373 women.

TABULATION, INTEGRATION, AND RESULTS

Unadjusted odds ratios were pooled using random-effects meta-analysis for antenatal depression (n=29), postpartum depression (n=16), and antenatal anxiety (n=10). Obese and overweight women had significantly higher odds of elevated depression symptoms than normal-weight women and higher median prevalence estimates. This was found both during pregnancy (obese odds ratio [OR] 1.43, 95% confidence interval [CI] 1.27-1.61, overweight OR 1.19, 95% CI 1.09-1.31, median prevalence: obese 33.0%, overweight 28.6%, normal-weight 22.6%) and postpartum (obese OR 1.30, 95% CI 1.20-1.42, overweight OR 1.09, 95% CI 1.05-1.13, median prevalence: obese 13.0%, overweight 11.8%, normal-weight 9.9%). Obese women also had higher odds of antenatal anxiety (OR 1.41, 95% CI 1.10-1.80). The few studies identified for postpartum anxiety (n=3), eating disorders (n=2), or serious mental illness (n=2) also suggested increased risk among obese women.

CONCLUSION

Health care providers should be aware that women who are obese when they become pregnant are more likely to experience elevated antenatal and postpartum depression symptoms than normal-weight women, with intermediate risks for overweight women.

A community based prevention of weight gain intervention (Mothers In Motion) among young low-income overweight and obese mothers: design and rationale

BACKGROUND

Over 45% of American women 20-39 years old are at risk for type 2 diabetes, cardiovascular disease, and other health conditions because they are overweight or obese. The prevalence of overweight and obesity is disproportionately high among low-income women. This paper describes the study design and rationale of a community based intervention (Mothers In Motion, MIM) aimed to prevent weight gain among low-income overweight and obese mothers 18-39 years old by promoting stress management, healthy eating, and physical activity.

METHODS/DESIGN

Peer recruiters approach participants from 5 Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) in Michigan. The MIM delivers theory-based, culturally-sensitive intervention messages via a combination of DVDs and peer support group teleconferences (PSGTs). The DVD features African American and white overweight and obese WIC mothers who participated in a healthy lifestyle intervention patterned after MIM. The PSGTs are led by paraprofessionals from Michigan State University Extension and WIC providers in Michigan who are trained in motivational interviewing and group facilitation skills. Participants are randomly assigned to an intervention (n=350) or comparison group (n=175). The intervention group receives a 16-week intervention on a weekly or bi-weekly basis. Participants are asked to watch 10 MIM DVD chapters at home and join 10 PSGT sessions by phone. The comparison group receives printed educational materials. The primary outcome is body weight. Secondary outcomes include dietary fat, fruit, and vegetable intake; physical activity; stress, and affect. Mediators are self-efficacy, emotional coping response, social support, and autonomous motivation. Telephone interviews and in-person data collection at WIC offices occur at 3 time points: baseline, immediately, and 3 months after the 16-week intervention.

DISCUSSION

If MIM shows effectiveness, it could have a favorable impact on public health and community programs. The DVDs and PSGTs will be disseminated in WIC, Extension, clinical practice that promote healthy lifestyles for similar target audiences to make a broad contribution to the prevention of weight gain in low-income mothers. Also, our methodology can be adapted by researchers and community stakeholders to help other low-income populations prevent weight gain.

TRIAL REGISTRATION

Clinical Trials Number: NCT01839708.

Postpartum Weight Self-Management: A Concept Analysis

Aim: The aim of this concept analysis is to create a clear definition and framework to guide weight self-management research and promotion of healthy weight self-management during the postpartum period. Background: A woman’s ability to manage her weight through the postpartum transition has lifelong implications for her weight status. Methods: This concept analysis was guided by Walker and Avant (2005). A broad search of sources was performed, yielding 56 articles in which postpartum weight self-management was the main focus. Results: From consideration of the attributes of postpartum weight self-management, a descriptive, situation-specific theory emerged: Postpartum weight self-management is a process by which the transition to motherhood is viewed by the woman as an opportunity to intentionally engage in healthy weight self-management behaviors by minimizing the salient inhibitors and maximizing the salient facilitators to action. Conclusion: This analysis provides a clarification of the process concept of postpartum weight self-management and its consequences, giving direction for measurement, clinical application, and further research. Future nursing interventions and research should be aimed at helping women to view the postpartum period as a normative transition in which they have the opportunity to take charge of their own health and the health of their family.

Postpartum weight loss: weight struggles, eating, exercise, and breast-feeding

Twenty-four women with children 5 years old or younger were interviewed regarding their experiences in losing weight during the postpartum period. Phenomenological interviews were conducted according to Husserl's perspective. Women who participated in the study revealed the issues related to postpartum weight loss: weight struggles, exercise, breast-feeding, eating, and pregnancy contributions to weight gain. The overall theme that resulted from these in-depth interviews was that women struggle to balance their successes and setbacks in losing weight during the postpartum period.

Maternal obesity support services: a qualitative study of the perspectives of women and midwives

BACKGROUND

Twenty percent of pregnant women in the UK are obese (BMI ≥ 30 kg/m2), reflecting the growing public health challenge of obesity in the 21st century. Obesity increases the risk of adverse outcomes during pregnancy and birth and has significant cost implications for maternity services. Gestational weight management strategies are a high priority; however the evidence for effective, feasible and acceptable weight control interventions is limited and inconclusive. This qualitative study explored the experiences and perceptions of pregnant women and midwives regarding existing support for weight management in pregnancy and their ideas for service development.

METHODS

A purposive sample of 6 women and 7 midwives from Doncaster, UK, participated in two separate focus groups. Transcripts were analysed thematically.

RESULTS

Two overarching themes were identified, 'Explanations for obesity and weight management' and 'Best care for pregnant women'. 'Explanations' included a lack of knowledge about weight, diet and exercise during pregnancy; self-talk messages which excused overeating; difficulties maintaining motivation for a healthy lifestyle; the importance of social support; stigmatisation; and sensitivity surrounding communication about obesity between midwives and their clients. 'Best care' suggested that weight management required care which was consistent and continuous, supportive and non-judgemental, and which created opportunities for interaction and mutual support between obese pregnant women.

CONCLUSIONS

Women need unambiguous advice regarding healthy lifestyles, diet and exercise in pregnancy to address a lack of knowledge and a tendency towards unhelpful self-talk messages. Midwives expressed difficulties in communicating with their clients about their weight, given awareness that obesity is a sensitive and potentially stigmatising issue. This indicates more could be done to educate and support them in their work with obese pregnant women. Motivation and social support were strong explanatory themes for obesity and weight management, suggesting that interventions should focus on motivational strategies and social support facilitation.

Unmet social support for healthy behaviors among overweight and obese postpartum women: results from the Active Mothers Postpartum Study

BACKGROUND

In the United States, about two thirds of women of reproductive age are overweight or obese. Postpartum is a transitional period. Life changes during this time can put mothers under high levels of stress when interpersonal support is inadequate. This study sought to explore predictors of unmet social support (support inadequacy) for healthy behaviors among postpartum women who were overweight or obese before pregnancy.

METHODS

Potential predictors of unmet social support for healthy behaviors were derived from baseline and 6-month postpartum data from the Active Mothers Postpartum (AMP) study. The Postpartum Support Questionnaire queried three dimensions of social support: (1) informational support, (2) emotional support, and (3) instrumental support. The main outcome, the overall Unmet Social Support Score (USSS), was the sum of the differences between the perceived need of support and perceived receipt of support in all three dimensions. Subscores were defined for each of the three support dimensions.

RESULTS

One hundred ninety women completed the 6-month Postpartum Support Questionnaire. Depression (p=0.018), unmarried status (p=0.049), and postpartum weight gain (p=0.003) were crude predictors for the overall USSS. After controlling for covariates, depression (p=0.009) and living with a spouse (p=0.040) were significant predictors for overall USSS. In adjusted analysis, depression remained a significant predictor for unmet emotional (p=0.035) and instrumental (p=0.001) social support.

CONCLUSIONS

Certain psychosocial factors predict support inadequacy expectations among postpartum women. Targeting the factors related to unmet social support may be a helpful way to promote healthy behaviors among overweight postpartum women.

Post-partum weight change patterns in the WHO Multicentre Growth Reference Study

The interplay of factors that affect post-partum loss or retention of weight gained during pregnancy is not fully understood. The objective of this paper is to describe patterns of weight change in the six sites of the World Health Organization (WHO) Multicentre Growth Reference Study (MGRS) and explore variables that explain variation in weight change within and between sites. Mothers of 1743 breastfed children enrolled in the MGRS had weights measured at days 7, 14, 28 and 42 post-partum, monthly from 2 to 12 months and bimonthly thereafter until 24 months post-partum. Height, maternal age, parity and employment status were recorded and breastfeeding was monitored throughout the follow-up. Weight change patterns varied significantly among sites. Ghanaian and Omani mothers lost little or gained weight post-partum. In Brazil, India, Norway and USA, mothers on average lost weight during the first year followed by stabilization in the second year. Lactation intensity and duration explained little of the variation in weight change patterns. In most sites, obese mothers tended to lose less weight than normal-weight mothers. In Brazil and Oman, primiparous mothers lost about 1 kg more than multiparous mothers in the first 6 months. In India and Ghana, multiparous mothers lost about 0.6 kg more than primiparas in the second 6 months. Culturally defined mother-care practices probably play a role in weight change patterns among lactating women. This hypothesis should stimulate investigation into gestational weight gain and post-partum losses in different ethnocultural contexts.

Pre-pregnancy and pregnancy predictors of obesity

Obesity has progressively become a global epidemic that constitutes one of the biggest current health problems worldwide. Pregnancy is a risk factor for excessive weight gain. Factors that may predict development of obesity in later life mainly include gestational weight gain, pre-pregnancy nutritional status, age, parity and race. Change in lifestyle factors, such as eating habits, enrollment in physical activity, smoking and duration of lactation, in addition to the above factors, may also contribute to the development of obesity but are still not fully understood. Women who retain more body weight after pregnancy have, in general, larger pregnancy body weight gain, higher pre-pregnancy body mass index, marked weight changes in previous pregnancies, lactate slightly less and stop smoking during pregnancy to a larger extent. In addition, irregular eating habits and decreased leisure time activity after delivery influence postpartum weight retention. Taking into consideration the epidemic of obesity, with all its adverse long-term consequences, there is an increasing need to promote counseling before, during and after pregnancy on the role of diet and physical activity in reproductive health.

Predictors of low-income, obese mothers' use of healthful weight management behaviors

OBJECTIVE

To examine the influence of personal and environmental factors on healthful weight management behaviors mediated through self-efficacy among low-income obese mothers.

DESIGN

Cross-sectional design.

SETTING

Special Supplemental Nutrition Program for Women, Infants, and Children in Wisconsin.

PARTICIPANTS

Two hundred eighty-four obese mothers aged 18-34 years.

MAIN OUTCOME MEASURES

Personal factors (eg, eating low-fat/low-calorie food for weight management), environmental factors, self-efficacy, and weight management behaviors. Data were collected via self-administered written questionnaires.

ANALYSIS

Latent class cluster analysis and structural logistic regression.

RESULTS

Women who perceived more importance of eating low-fat/low-calorie food for weight management were more likely to practice multiple behavioral strategies to manage their weight (odds ratio = 0.37) than women who perceived less importance of eating low-fat/low-calorie food for weight management. Women who reported higher positive mood self-efficacy were more likely (odds ratio = 1.63) to practice multiple strategies to manage their weight than women who reported lower positive mood self-efficacy. Environmental factors did not predict use of multiple healthful weight management behaviors. No mediation effect was found.

CONCLUSIONS AND IMPLICATIONS

Stressing the importance of food choices and reinforcing learners' self-confidence to make healthful choices at parties and celebrations may be helpful ways to address common barriers to healthful weight management.

Design and outcomes of a Mothers In Motion behavioral intervention pilot study

OBJECTIVE

This paper describes the design and findings of a pilot Mothers In Motion (P-MIM) program.

DESIGN

A randomized controlled trial that collected data via telephone interviews and finger stick at 3 time points: baseline and 2 and 8 months post-intervention.

SETTING

Three Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) sites in southern Michigan.

PARTICIPANTS

One hundred and twenty nine overweight and obese African-American and white mothers, 18-34 years old.

INTERVENTION

The 10-week, theory-based, culturally sensitive intervention messages were delivered via a series of 5 chapters on a DVD and complemented by 5 peer support group teleconferences.

MAIN OUTCOME MEASURES

Dietary fat, fruit, and vegetable intake; physical activity; stress; feelings; body weight; and blood glucose.

ANALYSIS

General linear mixed model was applied to assess treatment effects across 2 and 8 months post-intervention.

RESULTS

No significant effect sizes were found in primary and secondary outcome variables at 2 and 8 months post-intervention. However, changes in body weight and blood glucose showed apparent trends consistent with the study's hypotheses.

CONCLUSIONS AND IMPLICATIONS

The P-MIM showed promise for preventing weight gain in low-income overweight and obese women. However, a larger experimental trial is warranted to determine the effectiveness of this intervention.

Managing Excessive Weight Gain During Pregnancy and the Postpartum Period

Childbearing is a period in the life cycle during which some women may gain weight, become overweight, or become obese. Despite guidelines issued in 1990 for gestational weight gain, many women exceed them. Women who are overweight before pregnancy are most vulnerable to excessive gestational weight gain. Prenatal interventions to prevent excessive gain have had mixed results. During the postpartum period, 14% to 20% of women may retain weight from pregnancy, which elevates risk of later health problems. Although postpartum weight loss interventions have been shown to have efficacy, these have been tested primarily with White women. Continued efforts are needed in practice and research to develop effective approaches for managing weight during pregnancy and postpartum, especially for low-income and ethnic minority women.