Raymond R. Hyatt

A Community Intervention Reduces BMI z-score in Children: Shape Up Somerville First Year Results

Objective: The objective was to test the hypothesis that a community‐based environmental change intervention could prevent weight gain in young children (7.6 ± 1.0 years).

Parent behavior and child weight status among a diverse group of underserved rural families.

The purpose of this study was threefold: to investigate the association between three parenting behaviors (parenting style, feeding style, and feeding practices), to evaluate whether these behaviors were associated with child weight, and to determine whether style (parenting and feeding) moderated the relationship between feeding practice and child weight. Ninety-nine parent-child dyads were recruited for a cross-sectional study where parents self-reported their parenting style, feeding style, and feeding practices along with demographic characteristics. Height and weight were measured for each dyad. The relationship between parenting style and feeding style showed modest agreement. Feeding style, but not parenting style, was associated with child BMI z-score while controlling for known covariates. An indulgent feeding style was associated with a higher child weight status. Multiple regression analysis demonstrated that feeding style moderated the association between restrictive feeding practices and child BMI z-score. No moderating relationship was found between feeding style and the practices of pressure to eat or monitoring and child weight. This research suggests that an indulgent feeding style may be predictive of higher child weight and that future studies should examine the possible moderating role of feeding style in the parent feeding practice-child weight relationship.

Parent-child interactions and objectively measured child physical activity: a cross-sectional study.

BackgroundParents influence their childrens behaviors directly through specific parenting practices and indirectly through their parenting style. Some practices such as logistical and emotional support have been shown to be positively associated with child physical activity (PA) levels, while for others (e.g. monitoring) the relationship is not clear. The objectives of this study were to determine the relationship between parents PA-related practices, general parenting style, and childrens PA level.MethodsDuring the spring of 2007 a diverse group of 99 parent-child dyads (29% White, 49% Black, 22% Hispanic; 89% mothers) living in low-income rural areas of the US participated in a cross-sectional study. Using validated questionnaires, parents self-reported their parenting style (authoritative, authoritarian, permissive, and uninvolved) and activity-related parenting practices. Height and weight were measured for each dyad and parents reported demographic information. Child PA was measured objectively through accelerometers and expressed as absolute counts and minutes engaged in intensity-specific activity.ResultsSeventy-six children had valid accelerometer data. Children engaged in 113.4 ± 37.0 min. of moderate-vigorous physical activity (MVPA) per day. Children of permissive parents accumulated more minutes of MVPA than those of uninvolved parents (127.5 vs. 97.1, p < 0.05), while parents who provided above average levels of support had children who participated in more minutes of MVPA (114.2 vs. 98.3, p = 0.03). While controlling for known covariates, an uninvolved parenting style was the only parenting behavior associated with child physical activity. Parenting style moderated the association between two parenting practices - reinforcement and monitoring - and child physical activity. Specifically, post-hoc analyses revealed that for the permissive parenting style group, higher levels of parental reinforcement or monitoring were associated with higher levels of child physical activity.ConclusionsThis work extends the current literature by demonstrating the potential moderating role of parenting style on the relationship between activity-related parenting practices and childrens objectively measured physical activity, while controlling for known covariates. Future studies in this area are warranted and, if confirmed, may help to identify the mechanism by which parents influence their childs physical activity behavior.

Shape Up Somerville two-year results: a community-based environmental change intervention sustains weight reduction in children.

OBJECTIVE The objective of this study was to test the hypothesis that community-based environmental change intervention prevents undesirable weight gain in children. METHOD The method used in this study was a two-year, non-randomized, controlled trial (2003-2005) using community-based participatory methodology in three diverse cities in Massachusetts: one intervention and two socio-demographically-matched control communities (pooled for analysis). Children (n=1028), with a mean age=7.61+1.04years participated. Interventions were made to improve energy balance by increasing physical activity options and availability of healthful foods (Year 1). To firmly secure sustainability, the study team supported policies and shifted intervention work to community members (Year 2). RESULTS Change in body mass index z-score (BMIz) was assessed by multiple regression, accounting for clustering within communities and adjusting for baseline covariates. Sex-specific overweight/obesity prevalence, incidence and remission were assessed. Over the two-year period, BMIz of children in the intervention community decreased by -0.06 [p=0.005, 95% confidence interval: -0.08 to -0.04] compared to controls. Prevalence of overweight/obesity decreased in males (OR=0.61, p=0.01) and females (OR=0.78, p=0.01) and remission increased in males (OR 3.18, p=0.03) and females (OR 1.93, p=0.03) in intervention compared to controls. CONCLUSION Results demonstrate promise for preventing childhood obesity using a sustainable multi-level community-based model and reinforce the need for wide-reaching environmental and policy interventions.

Feeding styles and child weight status among recent immigrant mother-child dyads

BackgroundResearch has shown that parental feeding styles may influence children’s food consumption, energy intake, and ultimately, weight status. We examine this relationship, among recent immigrants to the US. Given that immigrant parents and children are at greater risk for becoming overweight/obese with increased time in the US, identification of risk factors for weight gain is critical.MethodsBaseline data was collected on 383 mother-child dyads enrolled in Live Well, a community-based, participatory, randomized controlled lifestyle intervention to prevent weight gain in recent immigrant mothers. Socio-demographic information together with heights and weights were collected for both mother and child. Acculturation, behavioral data, and responses to the Caregiver’s Feeding Styles Questionnaire (CFSQ) were also obtained from the mother.ResultsThe children’s average age was 6.2 ± 2.7 years, 58% male. Mothers had been in the country for an average of 6.0 ± 3.3 years, and are Brazilian (36%), Haitian (34%) and Latino (30%). Seventy-two percent of the mothers were overweight/obese, while 43% of the children were overweight/obese. Fifteen percent of mothers reported their feeding style as being high demanding/high responsive; 32% as being high demanding/low responsive; 34% as being low demanding/high responsive and 18% as being low demanding/low responsive. In bivariate analyses, feeding styles significantly differed by child BMIz-score, ethnic group, and mother’s perceived stress. In multiple linear regression, a low demanding/high responsive feeding style was found to be positively associated (ß = 0.56) with a higher child weight as compared to high demanding/high responsive, controlling for known covariates (p = 0.01).ConclusionsMost mothers report having a low demanding/high responsive feeding style, which is associated with higher child weight status in this diverse immigrant population. This finding adds to the growing literature that suggests this type of feeding style may be a risk factor for childhood obesity. Further research is needed to help understand the larger socio-cultural context and its influence on feeding dynamics among immigrant families and families of lower incomes. How parents establish a certain feeding style in their home country compared to when they move to the US “obesogenic” environment, should also be explored.

Permissive Parental Feeding Behavior Is Associated with an Increase in Intake of Low-Nutrient-Dense Foods among American Children Living in Rural Communities

Parents play an important role in shaping childrens eating habits. Few studies have evaluated the influence of both parenting style and parenting practices on child outcomes such as dietary intake. During spring 2007, 99 parent-child dyads from four rural US areas participated in this cross-sectional study. Child food intake was reported during two interviewer-administered, parent-assisted 24-hour recalls. Diet quality was defined as the average number of low-nutrient-dense (LND) foods consumed. Validated questionnaires were used to assess parental feeding practices and feeding style. Pearson correlations identified relationships among child food intake, parental feeding style typologies, and covariates. Regression analyses were used to predict child diet quality. Sixty percent of children and 76% of parents were overweight or obese. A permissive feeding style, which is highly responsive to a childs requests and sets few demands on him or her, was the most common (n=37) parental feeding style. This feeding style was associated with child intake of LND foods (r=0.3; P<0.001) and moderated the relationship between parental feeding practices and child intake of LND foods. In the presence of a permissive feeding style, higher levels of monitoring were associated with child intake of LND foods (β=.69; P<0.05). Parental feeding style may alter the effectiveness of parental feeding practices on childrens food intake. More research is needed to understand the parent-child feeding relationship in the context of parental feeding styles and practices.

Knowledge, attitudes, and beliefs regarding weight gain during pregnancy among Hispanic women.

Pregnancy weight gain may be a risk factor for the development of obesity highlighting the importance of identifying psychosocial risk factors for pregnancy weight gain. The goal of this qualitative pilot study was to evaluate knowledge, attitudes and beliefs regarding weight gain during pregnancy among predominantly Puerto Rican women, a group with higher rates of obesity as compared to non-Hispanic white women. We conducted four focus groups stratified by level of acculturation and BMI. Women reported receiving advice about pregnancy weight gain predominantly from nutritionists and family members rather than from their physicians. The majority of overweight/obese women reported that they had not received any recommendations for weight gain during pregnancy from physicians. Pregnancy weight gain advice was not consistent with the 1990 Institute of Medicine Guidelines. Overall, attitudes towards weight gain recommendations differed by weight status, whereas feelings and dietary beliefs about weight gain differed according to level of acculturation. Our findings inform behavior change strategies for meeting pregnancy weight gain recommendations.

Development of the rural active living assessment tools: Measuring rural environments

OBJECTIVE Develop rural-specific assessment tools to be used by researchers and practitioners to measure the activity-friendliness of rural communities. METHOD The tools were created through a mixed-methods investigation into the determinants of physical activity among rural populations. This informed the development of a conceptual framework defining activity-friendly rural environments. Questions were generated to reflect applicable existing urban-based variables and rural conceptual model elements. Pilot testing was conducted in seven rural US communities during the fall of 2008. Inter-rater reliability was assessed. RESULTS The Rural Active Living Assessment (RALA) Tools include three components: Town-Wide (18 town characteristic questions, and inventory of 15 recreational amenities), Program and Policy (20 questions), and Street Segment (28 questions). We found that the Town-wide and Program and Policy tools were feasible for community members to implement. The observed agreement and kappa statistic across all items for the Street Segment Assessment were substantial (91.9% and 0.78, respectively). CONCLUSIONS The RALA Tools were shown to be feasible and reliability was supported. They assess features believed to be supportive of active living in rural environments, offer users a resource to assess rural environments for activity-friendliness, and may also inform the design of interventions to help rural communities become more active and healthy.

Active living for rural children: community perspectives using PhotoVOICE.

BACKGROUND Active living integrates physical activity into ones daily routine. Current understanding of active living among children and their families living in rural communities is limited. A community perspective is critical to understand the contextual factors that influence childrens physical activity in rural areas. PURPOSE The purpose of this study was to identify the perceived environmental factors that support or hinder physical activity among rural children to develop testable hypotheses to inform future interventions for reducing unhealthy weight gain and preventing chronic diseases associated with physical inactivity. METHODS PhotoVOICE was used to explore active living opportunities and barriers for children living in four low-income, rural U.S. communities. In 2007, parents (n=99) and elementary school staff (n=17) received disposable cameras to document their perspective. Using their photographs and narratives, participants developed emergent themes during a facilitated group discussion. In 2008, study authors used the Analysis Grid for Environments Linked to Obesity (ANGELO) framework to categorize the themes. RESULTS Microenvironment themes include physical (e.g., natural features, topography); sociocultural (e.g., isolation); policy (e.g., time for school recess); and economic (e.g., funding for physical activity programs). Macroenvironmental themes related to the built and natural environments and transportation infrastructure. CONCLUSIONS This study identified rural environment elements that community members perceived as influencing childrens physical activity patterns. Certain aspects were unique to rural areas, whereas other urban and suburban factors may be generalizable to rural settings. PhotoVOICE was a useful participatory research method to gain insight into perceived factors affecting rural childrens physical activity behaviors.

Long-term effects of provided low and high glycemic load low energy diets on mood and cognition.

Energy-restricted low glycemic load diets are being used increasingly for weight loss. However, the long-term effects of such regimens on mood and cognitive performance are not known. We assessed the effects of low glycemic load (LG) and high glycemic load (HG) energy-restricted diets on mood and cognitive performance during 6 months of a randomized controlled trial when all food was provided. Subjects were 42 healthy overweight adults (age 35+/-5 years; BMI 27.8+/-1.6 kg/m(2)) with a mean weight loss of 8.7+/-5.0% that did not differ significantly by diet randomization. Mood was assessed by using the Profile of Mood States (POMS) questionnaire. Cognitive performance was assessed by using computerized tests of simple reaction time, vigilance, learning, short-term memory and attention, and language-based logical reasoning. Worsening mood outcome over time was observed in the HG diet group compared to the LG for the depression subscale of POMS (p=0.009 after including hunger as a covariate). There was no significant change over time in any cognitive performance values. These findings suggest a negative effect of an HG weight loss diet on sub-clinical depression but, in contrast to a previous suggestion, provide no support for differential effects of LG versus HD diets on cognitive performance.