Social and Behavioral Sciences Commons^™

Contextualizing The Neural Vulnerabilities Model Of Obesity, Timothy D. Nelson, Eric Stice

Department of Psychology: Faculty Publications

In recent years, investigators have focused on neural vulnerability factors that increase the risk of unhealthy weight gain, which has provided a useful organizing structure for obesity neuroscience research. However, this framework, and much of the research it has informed, has given limited attention to contextual factors that may interact with key vulnerabilities to impact eating behaviors and weight gain. To fill this gap, we propose a Contextualized Neural Vulnerabilities Model of Obesity, extending the existing theory to more intentionally incorporate contextual factors that are hypothesized to interact with neural vulnerabilities in shaping eating behaviors and weight trajectories. We …

Much Ado About Missingness: A Demonstration Of Full Information Maximum Likelihood Estimation To Address Missingness In Functional Magnetic Resonance Imaging Data, Timothy D. Nelson, Rebecca L. Brock, Sonja Yokum, Cara C. Tomaso, Cary R. Savage, Eric Stice

Department of Psychology: Faculty Publications

The current paper leveraged a large multi-study functional magnetic resonance imaging (fMRI) dataset (N = 363) and a generated missingness paradigm to demonstrate different approaches for handling missing fMRI data under a variety of conditions. The performance of full information maximum likelihood (FIML) estimation, both with and without auxiliary variables, and listwise deletion were compared under different conditions of generated missing data volumes (i.e., 20, 35, and 50%). FIML generally performed better than listwise deletion in replicating results from the full dataset, but differences were small in the absence of auxiliary variables that correlated strongly with fMRI task data. However, …

Sensitray: An Integrated Measuring Device For Monitoring Children’S Mealtime Dietary Intake, Hunter S. Guru, Anthony D. Weng, Santosh Pitla, Dipti Dev

Department of Child, Youth, and Family Studies: Faculty Publications

Childhood nutrition establishes consumption norms that affect an individual’s health over the course of their lives. However, early nutrition interventions to establish such norms are uncommon owing to the various inefficiencies associated with current methods of measuring childhood nutrition. Here, we present an IoT measuring device, called the SensiTray, which accurately tracks mealtime intake in a child-friendly and cost-effective fashion. Principal technologies underlying the SensiTray (including mass-sensing technologies, microcontrollers) are identified and analyzed, along with other design choices. Operation of the SensiTray is explained with special attention given to SensiTray software peripherals and algorithms. Preliminary testing consisted of static and …

Effects Of A Comprehensive Nutrition Education Programme To Change Grade 4 Primary-School Students’ Eating Behaviours In China, Lian Qian, Ian M. Newman, Lok-Wa Yuen, Weijing Du, Duane F. Shell

Department of Educational Psychology: Faculty Publications

Objective: As part of a national initiative to reduce child obesity, a comprehensive school-based nutrition education intervention to change eating behaviours among grade 4 primary-school students was developed, implemented and evaluated. Design: The intervention was developed by school staff, with technical assistance from outside health education specialists. The programme included school facility upgrades, school teacher/staff training, curriculum changes and activities for parents. Student scores on nine key eating behaviours were assessed prior to and after the programme. The quality of programme implementation in the schools was monitored by technical assistance teams. Setting: Shandong Province (high household income) and Qinghai Province …

Improving The Nutrition And Screen Time Environment Through Self-Assessment In Family Childcare Homes In Nebraska, Dipti A. Dev, Natalie A. Williams, Iheoma Iruka, Aileen S. Garcia, Yage Guo, Irina Patwardhan, Katrina Cummings, Zainab Rida, Emily Hulse, Ami Sedani

Department of Child, Youth, and Family Studies: Faculty Publications

Objective: To determine if family childcare homes (FCCH) in Nebraska meet best practices for nutrition and screen time, and if focusing on nutrition and screen time policies and practices improves the FCCH environment.

Design: A pre–post evaluation was conducted using the Go Nutrition and Physical Activity Self-Assessment for Childcare (Go NAP SACC).

Setting: FCCH in Nebraska, USA.

Subjects: FCCH enrolled in the Child and Adult Care Food Program (CACFP; n 208) participated in a pre–post evaluation using Go NAP SACC.

Results: At baseline, all FCCH met the minimum childcare standards for fifty-four of fifty-six practices …

Assessment Of The Campus Food Environment Using Components Of The Healthy Campus Environmental Audit, Candace Sorden

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

The objective was to assess whether the food environment at the University of Nebraska-Lincoln (UNL) campuses supports healthy eating behaviors using components of the Healthy Campus Environmental Audit (vending, dining, and convenience store audits). Secondary aims were to compare the UNL food environment to other college campuses and explore whether there are existing health promotion and obesity prevention initiatives, programs, pledges and/or policies at UNL.

Research team members accessed a secure online website to review training materials prepared by Syracuse University. Evaluators did audit practice trials to meet inter-rater reliability score standards (>80%). audits were conducted at designated sites …

Providers Perspectives On Self-Regulation Impact Their Use Of Responsive Feeding Practices In Child Care, Dipti A. Dev, Katherine E. Speirs, Natalie A. Williams, Samantha Ramsay, Brent A. Mcbride, Holly Hatton-Bowers

Department of Child, Youth, and Family Studies: Faculty Publications

Supporting children's self-regulation in eating through caregivers' practice of responsive feeding is paramount to obesity prevention, and while much attention has been given to supporting children's selfregulation in eating through parents' responsive feeding practices in the home setting, little attention has been given to this issue in childcare settings. This qualitative study examines childcare providers' perspectives on using responsive feeding practices with young children (2–5 years). Individual semistructured interviews were conducted with providers until saturation was reached. Data was analyzed using thematic analysis. The final sample included 18 providers who were employed full-time in Head Start or state-licensed center-based childcare …

Engaging Parents To Promote Children’S Nutrition And Health: Providers’ Barriers And Strategies In Head Start And Child Care Centers, Dipti A. Dev, Courtney Byrd-Williams, Samantha Ramsay, Brent A. Mcbride, Deepa Srivastava, Ashleigh L. Murriel, Chrisa Arcan, Anna M. Adachi-Mejia

Department of Child, Youth, and Family Studies: Faculty Publications

Purpose: Using the Academy of Nutrition and Dietetics benchmarks as a framework, this study examined childcare providers’ (Head Start [HS], Child and Adult Care Food Program [CACFP] funded, and non-CACFP) perspectives regarding communicating with parents about nutrition to promote children’s health.

Design: Qualitative.

Setting: State-licensed center-based childcare programs.

Participants: Full-time childcare providers (n ¼ 18) caring for children 2 to 5 years old from varying childcare contexts (HS, CACFP funded, and non-CACFP), race, education, and years of experience.

Methods: In-person interviews using semi-structured interview protocol until saturation were achieved. Thematic analysis was conducted.

Results: Two overarching themes were barriers and …

He’S Just Content To Sit: A Qualitative Study Of Mothers’ Perceptions Of Infant Obesity And Physical Activity, Danae Dinkel, Kailey Snyder, Anastasia Kyvelidou, Victoria Molfese

Department of Child, Youth, and Family Studies: Faculty Publications

Background: Rates of obesity among children ages zero to five are rapidly increasing. Greater efforts are needed to promote healthy behaviors of young children. Mothers are especially important targets for promoting health as mothers’ views play a vital role in helping their children foster healthy habits from an early age. Research has found parents’ views of infants’ weight may influence their feeding practices; however, limited research has explored mothers’ view of infants’ weight in relation to the promotion of physical activity. Therefore, the purpose of this study was to explore the perceptions of mothers of normal weight infants and overweight …

Attention Deficit Hyperactivity Disorder Symptomatology And Pediatric Obesity: Psychopathology Or Sleep Deprivation?, Alyssa Lundahl, Timothy D. Nelson

Department of Psychology: Faculty Publications

The relationship between attention deficit hyperactivity disorder (ADHD) and obesity in children has received considerable attention in recent years. However, the literature currently overlooks the potential causal and maintaining role that sleep problems may play in this relationship. Using a biopsychosocial framework, this article highlights how sleep problems impact the biological, psychological, and social aspects of both ADHD symptomatology and obesity. An in-depth examination of this model illustrates the imperative need for future research and clinical practice to recognize and explore the role sleep has in the link between obesity and ADHD symptomatology.

Birth Weight, Early Life Course Bmi, And Body Size Change: Chains Of Risk To Adult Inflammation?, Bridget J. Goosby, Jacob Cheadle, Thomas Mcdade

Department of Sociology: Faculty Publications

This paper examines how body size changes over the early life course predict high-sensitivity C-reactive protein in a U.S. based sample. Using three waves of the National Longitudinal Study of Adolescent Health (Add Health), we test the chronic disease epidemiological models of fetal origins, sensitive periods, and chains of risk from birth into adulthood. Few studies link birth weight and changes in obesity status over adolescence and early adulthood to adult obesity and inflammation. Consistent with fetal origins and sensitive periods hypotheses, body size and obesity status at each developmental period, along with increasing body size between periods, are highly …

Who’S To Blame? Blame Attributions And Obesity-Related Law And Policy, Lindsey E. Wylie

Department of Psychology: Dissertations, Theses, and Student Research

Obesity is a foremost public health concern that has received considerable attention. Because of this so-named “epidemic,” law-makers are challenged with implementing effective policies that the public supports. Little is known, however, about the antecedents and consequences of these policies—especially attributions of blameworthiness. Study 1 developed the Obesity Blame Attribution Scale (OBAS). Confirmatory factor analysis demonstrated that controllability, responsibility and dispositional blame were separate constructs and were part of a higher-order dispositional blame factor. Situational blame was a separate higher-order factor, not correlated with dispositional blame, consisting of blame toward the food industry and towards government policy. Using the OBAS, …

Exploring The Evolutionary Origins Of Obesity Through The Endocrine-Physical Activity-Bone Axis, Maria G. Lapera

Anthropology Department: Theses

As the global obesity epidemic spreads, scientists struggle to understand the biological, cultural, and evolutionary bases for modern fatness. Understanding the contributions of the interaction between physical activity and the endocrine system to regulating metabolism could potentially help people who are overweight or obese in losing weight and illustrate one of the evolutionary pathways that encourages modern obesity. This study used an innovative approach that integrated a lifestyle physical activity and diet questionnaire coupled with endocrine analysis (leptin, osteocalcin) and anthropometric measures in order to create baseline measurements of fit individuals. The mean osteocalcin level was 4201.46 pg/mL and the …

The Environmental And Health Costs Of Alternative Diets: A Comparative Study Of The U.S. Diet Relative To The French, Japanese, Mediterranean, And Nordic Diets, Sarah Rehkamp

Department of Agricultural Economics: Dissertations, Theses, and Student Research

This thesis contributes to the literature on sustainable consumption by using scenario analysis to evaluate the environmental and health costs of the U.S. diet relative to the French, Japanese, Mediterranean, and Nordic diets, identified in the literature as healthier diets. As a first step in estimating environmental costs, the energy efficiencies of each diet are calculated by decomposing each of the diets into their respective components. Then, the dietary efficiencies are translated into CO₂ emissions. As a first step in estimating health costs, a pooled cross-section time-series dataset is used to find the association between BMI and five countries, …

The Association Of Wellness Policy Quality And Percentage Of Obesity In Schools, Bryce M. Abbey

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Schools possess a unique opportunity to reach a large captive audience and are becoming one of the battlegrounds for childhood obesity. To address the school environment’s role on the influence of American children’s nutritional intake and participation in physical activity, the United States (US) Federal Government adopted the Healthy, Hunger-Free Kids Act of 2010, placing an emphasis on implementation of the local school wellness policy (LSW). The purpose of this study was to examine the association between LSW and percentage of obesity in school districts within Nebraska. Aggregate district-wide body mass index (BMI) percentile data were utilized from previously collected …

Head Start And Child Care Providers’ Motivators, Barriers And Facilitators To Practicing Family-Style Meal Service, Dipti A. Dev, Katherine E. Speirs, Brent A. Mcbride, Sharon M. Donovan, Karen Chapman-Novakofski

Department of Child, Youth, and Family Studies: Faculty Publications

This paper presents a qualitative investigation of the motivators, barriers, and facilitators for practicing family-style meal service (FSMS) from the perspective of 18 child care providers serving preschool children in Head Start (HS), Child and Adult Care Food Program (CACFP) funded, and non-CACFP child-care centers. Providers were selected based on maximum variation purposive sampling and semi-structured interviews were conducted until saturation was reached. Provider responses were systematically coded using thematic analysis. HS and CACFP providers reported being motivated to practice FSMS because it created pleasant mealtimes, opportunities to role model healthy eating, and healthful child development. CACFP and non-CACFP providers …

Body Esteem, Peer Difficulties, And Perceptions Of Physical Health In Overweight And Obese Urban Children Ages 5 To 7 Years, Natalie A. Williams, Jennifer Fournier, Mace Coday, Phyllis A. Richey, Frances A. Tylavsky, Marion E. Hare

Department of Child, Youth, and Family Studies: Faculty Publications

Objective—To determine whether there is an association between body mass index (BMI) and body esteem in young overweight and obese urban children, and to test peer relationship difficulties and perceived physical health as mediators of this relationship.

Methods—Child self-reported body esteem, and parent-reported child peer relationship difficulties (being bullied by peers and peer rejection) and physical health perceptions were obtained from 218 overweight and obese children ages 5–7 years (81% racial/ethnic minority, M BMI = 25.3) and their primary caregivers.

Results—Higher BMI was associated with lower body esteem for both girls and boys. This relation was mediated …

Accounting For Product Substitution In The Analysis Of Food Taxes Targeting Obesity, Zhen Miao, John C. Beghin, Helen H. Jensen

Department of Agricultural Economics: Faculty Publications

We extend the existing literature on food taxes targeting obesity. We systematically incorporate the implicit substitution between added sugars and solid fats into a comprehensive food demand system and evaluate the effect of taxes on sugars and fats. The approach conditions how food and obesity taxes affect total calorie intake. The proposed methodology accounts for the ability of consumers to substitute leaner low-fat and low-sugar items for rich food items within the same food group. This substitution is integrated into a calibrated demand system in addition to the substitution among food groups, using recent food intake data and existing demand …

Reducing Overweight And Obesity Among Elementary Students In Wuhan, China, Ling Qian, Ian Newman, Duane F. Shell, Cheng Maojin Cheng

Department of Educational Psychology: Faculty Publications

Obesity and overweight among children in China is a growing concern. The curriculum and organization of Chinese schools focuses on academic achievement leaving little time for other programs. This pilot program illustrated that it is possible to involve schools and parents in a program to reduce obesity and overweight. Teachers, school staff, parents and elementary students were involved in an all-school educational initiative based on WHO’s Health Promoting School Model. The program was evaluated with a mixed modal ANOVA using a 3-level within subjects repeated factor (baseline, 1st follow-up, 2nd follow-up) and a 2-level between subjects factor (gender: boys and …

Parks And Obesity In Rural And Urban Nebraska, Michaela S. Wolf

Department of Environmental Studies: Undergraduate Student Theses

In order to better understand the role community design plays in obesity rates, this project studies a potential relationship between distance of parks from homes and obesity rates in four Nebraska counties. Park use may contribute to important health benefits, such as reducing risk of obesity by increasing physical activity levels. There are limitations to park use, such as crime rates and facility upkeep that are important to understand so that they might be managed and communities can reap greater benefits from their parks, including better fitness. This study examines park distance from homes as a potential limiting factor to …