Introduction Women attain numerous benefits from physical activity during pregnancy. However, due to physical changes that occur during pregnancy, special precautions are also needed. This review summarizes current guidelines for physical activity among pregnant women worldwide. Methods We searched PubMed (MedLINE) for country-specific governmental and clinical guidelines on physical activity during pregnancy through the year 2012. We cross-referenced with articles referring to guidelines, with only the most recent included. An abstraction form was used to extract key details and summarize. Results In total, 11 guidelines were identified from nine countries (Australia, Canada, Denmark, France, Japan, Norway, Spain, United Kingdom, United States). Most guidelines supported moderate intensity physical activity during pregnancy (10/11) and indicated specific frequency (9/11) and duration/time (9/11) recommendations. Most guidelines provided advice on initiating an exercise program during pregnancy (10/11). Six guidelines included absolute and relative contraindications to exercise. All guidelines generally ruled-out sports with risks of falls, trauma, or collisions. Six guidelines included indications for stopping exercise during pregnancy. Conclusion This review contrasted pregnancy-related physical activity guidelines from around the world, and can help to inform new guidelines as they are created or updated, and facilitate the development of a worldwide guideline.
Introduction: The necessity of culturally competent Internet Cancer Support Groups (ICSGs) for ethnic minorities has recently been highlighted in order to increase its attractivity, and usage. The purpose of this study was to determine the preliminary efficacy of a culturally tailored registered nurse (RN) moderated ICSG for Asian American breast cancer survivors (ICSG-AA) in enhancing the women’s breast cancer survivorship experience. Methods: The study included two phases: (a) a usability test and an expert review; and (b) a randomized controlled pilot intervention study. The usability test was conducted among five Asian American breast cancer survivors using a 1-month online forum, and the expert review was conducted among five experts using the Cognitive Walkthrough method. The randomized controlled pilot intervention study (a pre-test and post-test design) was conducted among 65 Asian American breast cancer survivors. The data were analyzed using content analysis and descriptive and inferential statistics including the repeated ANOVA. Results: All users and experts positively evaluated the program, and provided their suggestions for the display, educational contents, and user-friendly structure. There were significant positive changes in support care needs and physical and psychological symptoms (p < 0.05) of the control group. There were significant negative changes in the uncertainty level of the intervention group (p < 0.10). Controlling for background and disease factors, the intervention group showed significantly greater improvements than the control group in physical and psychological symptoms and quality of life (p < 0.10). Discussion: The findings supported the positive effects of ICSGs on support care needs, psychological and physical symptoms, and quality of life.
BackgroundDiet- and physical activity-based interventions in pregnancy have the potential to alter maternal and child outcomes.ObjectivesTo assess whether or not the effects of diet and lifestyle interventions vary in subgroups of women, based on maternal body mass index (BMI), age, parity, Caucasian ethnicity and underlying medical condition(s), by undertaking an individual patient data (IPD) meta-analysis. We also evaluated the association of gestational weight gain (GWG) with adverse pregnancy outcomes and assessed the cost-effectiveness of the interventions.Data sourcesMEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Database of Abstracts of Reviews of Effects and Health Technology Assessment database were searched from October 2013 to March 2015 (to update a previous search).Review methodsResearchers from the International Weight Management in Pregnancy Collaborative Network shared the primary data. For each intervention type and outcome, we performed a two-step IPD random-effects meta-analysis, for all women (except underweight) combined and for each subgroup of interest, to obtain summary estimates of effects and 95% confidence intervals (CIs), and synthesised the differences in effects between subgroups. In the first stage, we fitted a linear regression adjusted for baseline (for continuous outcomes) or a logistic regression model (for binary outcomes) in each study separately; estimates were combined across studies using random-effects meta-analysis models. We quantified the relationship between weight gain and complications, and undertook a decision-analytic model-based economic evaluation to assess the cost-effectiveness of the interventions.ResultsDiet and lifestyle interventions reduced GWG by an average of 0.70 kg (95% CI –0.92 to –0.48 kg; 33 studies, 9320 women). The effects on composite maternal outcome [summary odds ratio (OR) 0.90, 95% CI 0.79 to 1.03; 24 studies, 8852 women] and composite fetal/neonatal outcome (summary OR 0.94, 95% CI 0.83 to 1.08; 18 studies, 7981 women) were not significant. The effect did not vary with baseline BMI, age, ethnicity, parity or underlying medical conditions for GWG, and composite maternal and fetal outcomes. Lifestyle interventions reduce Caesarean sections (OR 0.91, 95% CI 0.83 to 0.99), but not other individual maternal outcomes such as gestational diabetes mellitus (OR 0.89, 95% CI 0.72 to 1.10), pre-eclampsia or pregnancy-induced hypertension (OR 0.95, 95% CI 0.78 to 1.16) and preterm birth (OR 0.94, 95% CI 0.78 to 1.13). There was no significant effect on fetal outcomes. The interventions were not cost-effective. GWG, including adherence to the Institute of Medicine-recommended targets, was not associated with a reduction in complications. Predictors of GWG were maternal age (summary estimate –0.10 kg, 95% CI –0.14 to –0.06 kg) and multiparity (summary estimate –0.73 kg, 95% CI –1.24 to –0.23 kg).LimitationsThe findings were limited by the lack of standardisation in the components of intervention, residual heterogeneity in effects across studies for most analyses and the unavailability of IPD in some studies.ConclusionDiet and lifestyle interventions in pregnancy are clinically effective in reducing GWG irrespective of risk factors, with no effects on composite maternal and fetal outcomes.Future workThe differential effects of lifestyle interventions on individual pregnancy outcomes need evaluation.Study registrationThis study is registered as PROSPERO CRD42013003804.FundingThe National Institute for Health Research Health Technology Assessment programme.
Pregnant women at risk for preeclampsia may benefit from the positive effects of exercise, but they may be unlikely to adhere to an exercise program. A randomized trial was conducted with 124 sedentary pregnant women to compare the effects of walking exercise to a stretching exercise on adherence and on the preeclampsia risk factors of heart rate (HR), blood pressure, and weight gain. Walkers exercised less than stretchers both overall and as pregnancy advanced. HR and blood pressure were lower among stretchers than walkers, but weight gain did not differ between the groups. For sedentary pregnant women, a stretching exercise may be more effective than walking in mitigating the risk of preeclampsia due to higher adherence and possible cardiacphysiologic effects. KeywordsClinical trial; physical activity; preeclampsia; pregnancy; resting heart rate; sedentary; stretching; walking; weight gainThe findings of several studies show the protective effects of physical activity for risk of preeclampsia in pregnancy. For example, Marcoux, Brisson, and Fabia (1989) reported that women who regularly performed leisure physical activity during pregnancy had a 37% lower risk of preeclampsia, including a 25% lower risk of gestational hypertension. Similarly, Sorensen et al. (2003) reported that women who engaged in any regular leisure physical activity during pregnancy experienced a 35% reduction in the risk of preeclampsia. If they engaged in vigorous activities, such as running or brisk walking, the reduction was 54%. Even light or moderate activities, such as walking, reduced the risk of preeclampsia by 24%. Yet only 15.8% of pregnant women regularly engage in any leisure physical activity, according to a study analyzing a large population data base from the 2000 Behavioral Risk Factor Surveillance System (Evenson, Savitz, & Huston, 2004). The great majority of pregnant women are sedentary (Rousham, Clarke, & Gross, 2006), and even women who were physically active before pregnancy tend to reduce their activity when they become pregnant (King, 1994;Rousham, Clarke, & Gross, 2006). Thus an important question is whether pregnant women who do not regularly engage in leisure physical activity could be persuaded to do so.Pregnant women who are not physically active often have other risks for preeclampsia, including obesity (Ros, Cnattingius, & Lipworth, 1998), excessive gestational weight gain (Gavard & Artal, 2008), low income, and low educational attainment (Haelterman, Qvist, Barlow, & Alexander, 2003). Indeed, women with these risk factors are significantly less NIH Public Access Author ManuscriptRes Nurs Health. Author manuscript; available in PMC 2010 August 1. NIH-PA Author ManuscriptNIH-PA Author Manuscript NIH-PA Author Manuscriptlikely than other women to exercise during pregnancy (Evenson et al., 2004;Hinton & Olson, 2001;Ning et al., 2003). For example, in one study, pregnant women with college degrees or above were 4.8 times (adjusted odds ratio: aOR) more likely to exercise at recommended levels than pregn...
When PCPs counsel nutrition and physical activity, obese and overweight pregnant women have greater success meeting GWG targets and may be more motivated to modify their behaviour than with other modes of intervention deliveries.
Purpose This review provides researchers and practitioners with an overview of the physical activity and pregnancy literature to promote prenatal physical activity, improve measurement, further elucidate the role of activity in reducing maternal health complications, and inform future research. Methods We examined past and present physical activity and pregnancy studies and highlight key papers with a particular focus on maternal health outcomes to best inform physical activity promotion efforts. Results This review discusses: (a) historical overview of prenatal physical activity with a specific focus on the physical activity guidelines, how they have changed over time, and how evidence of the effect of prenatal activity on maternal/fetal health outcomes has impacted clinical recommendations; (b) existing tools and challenges associated with measuring prenatal physical activity; (c) empirical evidence on the multi-level determinants of prenatal activity to help guide future intervention work; (d) empirical evidence of prenatal activity on adverse maternal outcomes (gestational diabetes mellitus, preeclampsia, excessive gestational weight gain) from observational and intervention studies; and (e) summary/recommendations for future research and practice. Conclusions The physical activity and pregnancy literature has evolved over the past 50 years and there is currently sufficient empirical evidence to support the promotion of moderate to vigorous prenatal physical activity for maternal health benefits. Future studies and interventions should be carefully-designed, theoretically driven, and include validated and reliable measures of activity. Researchers and practitioners should also consider the multifaceted determinants and outcomes of prenatal physical activity and intervening to promote physical activity before, during, and after pregnancy.
Regular stretching exercises may promote endogenous antioxidants among women at risk for preeclampsia.
Background: The goal of prenatal care is to maximize health outcomes for a woman and her fetus. We examined how prenatal care is associated with meeting the 2009 Institute of Medicine (IOM) guidelines for gestational weight gain. Sample: The study used deidentified birth certificate data supplied by the North Carolina State Center for Health Statistics. The sample included 197,354 women ( ‡18 years) who delivered singleton full-term infants in 2011 and 2012. Methods: A generalized multinomial model was used to identify how adequate prenatal care was associated with the odds of gaining excessive or insufficient weight during pregnancy according to the 2009 IOM guidelines. The model adjusted for prepregnancy body size, sociodemographic factors, and birth weight. Results: A total of 197,354 women ( ‡18 years) delivered singleton full-term infants. The odds ratio (OR) for excessive weight gain was 2.44 (95% CI 2.37-2.50) in overweight and 2.33 (95% CI 2.27-2.40) in obese women compared with normal weight women. The OR for insufficient weight gain was 1.15 (95% CI 1.09-1.22) for underweight and 1.34 (95% CI 1.30-1.39) for obese women compared with normal weight women. Prenatal care at the inadequate or intermediate levels was associated with insufficient weight gain (OR: 1.32, 95% CI 1.27-1.38; OR: 1.15, 95% CI 1.09-1.21, respectively) compared with adequate prenatal care. Women with inadequate care were less likely to gain excessive weight (OR: 0.88, 95% CI 0.86-0.91). Conclusions: Whereas prenatal care was effective for preventing insufficient weight gain regardless of prepregnancy body size, educational background, and racial/ethnic group, there were no indications that adequate prenatal care was associated with reduced risk for excessive gestational weight gain. Further research is needed to improve prenatal care programs for preventing excess weight gain.
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