Richard R Rosenkranz

University of Nevada, Las Vegas | UNLV · Department of Kinesiology and Nutrition Sciences

Objective: To investigate the frequency of various weight loss strategies among adults in the United States and to explore which weight-loss strategies are associated with several demographic factors. Methods: The study utilized 2017-2020 data from the National Health and Nutrition Examination Survey. Adult participants (N = 3,130) who had tried to...

Background Teachers are recognized as ‘key agents’ for the delivery of physical activity programs and policies in schools. The aim of our study was to develop and evaluate a tool to assess teachers’ capability, opportunity, and motivation to deliver school-based physical activity interventions. Methods The development and evaluation of the Capabil...

Background Children’s physical activity and screen time behaviours impact their physical health and well-being. In Australia, less than half of children meet daily physical activity recommendations and only one-third meet daily screen time recommendations. Nearly half a million Australian school children aged 5-12 attend Outside School Hours Care (...

Introduction Formula feeding is the only viable nutrition alternative for infants 0–6mos who cannot breastfeed. Among the drawbacks of formula feeding, however, is potential dilution or concentration errors in the formula during preparation that may lead to infant health issues. The present study aimed to investigate the accuracy of caregiver measu...

Formula feeding, as an alternative to breastfeeding, offers benefits such as convenience and consistent nutrition. Among the drawbacks of formula feeding, however, is potential dilution or concentration errors in the of formula during preparation that may lead to infant health issues. The present study aimed to investigate the accuracy of caregiver...

Excellent self-rated health has been associated with decreased mortality and positive health outcomes in adults. However, less is known about youth populations. To evaluate lifestyle behaviors and their relationship with excellent self-rated health in an adolescent population in the United States. The FLASHE study, conducted by the National Cancer...

Purpose: There is scant published research regarding nutrition and insulin strategies for athletic performance in collegiate distance runners with type 1 diabetes mellitus (CDRT1). Acute carbohydrate supplementation (CHOsup) and insulin reduction used to minimize hypoglycemia during exercise may result in deteriorated glycemic control post exercis...

Objective: Rural and emerging adult women report low physical activity (PA) levels. This study identified differences in current self-reported PA levels and perceived resources among US university women from metropolitan, micropolitan, and rural areas. Participants: Women were ages 18-24 y, full-time students who attended in-person university class...

Background: Communities are wellness landscapes of geospatially and temporally bound settings where children spend their time. Improving population physical activity (PA) requires investigating available community settings for children, such as classrooms and sport teams, and the dynamic social interactions producing PA. This protocol describes a...

Numerous dietary quality indices exist to help quantify overall dietary intake and behaviors associated with positive health outcomes. Most indices focus solely on biomedical factors and nutrient or food intake, and exclude the influence of important social and environmental factors associated with dietary intake. Using the Diet Quality Index- Inte...

Objectives: To examine differences in rural community children's moderate-to-vigorous physical activity (MVPA) and participation in out-of-school activities from fall 2019 to fall 2020 and explore enacted PA opportunity modifications post initial COVID-19 disruption. Design: Mixed methods study using the validated Youth Activity Profile (YAP), a...

Background Out-of-school time (OST) organized group youth activities (e.g., afterschool programs, clubs) can reduce health inequalities by increasing physical activity (PA). However, unlike youth sport, PA is not the primary focus of many organized activities. This study examined the association between rural children’s demographic factors and OST...

To investigate the potential for a definitive home-based trial, this study tested the feasibility of participant recruitment, delivery, and rigorous evaluation for an innovative girls-only health coaching intervention model. Results indicated the intervention model was feasible and can progress to a potentially effective fully powered trial.

Abstract Sedentary behavior negatively impacts mental health, which can decrease employee productivity. Employee mental well-being and work performance may improve with sedentary reduction interventions, especially strategies that include environmental workplace modifications and behavior-changing strategies. However, such interventions have not be...

Background Numerous studies have tested school-based interventions promoting healthy behaviors in youth, but few have integrated dissemination and implementation (D&I) frameworks. Using D&I frameworks can inform if and how an evidence-based intervention is implemented and maintained and provide strategies to address contextual barriers. Such applic...

Introduction: Childhood obesity is a principal concern worldwide. Guatemalan households have the highest prevalence of double burden of malnutrition in the world. These households are self-identified as indigenous and live with lower incomes in rural communities. However, there are limited data on risk factors for childhood obesity and limited info...

Cardiovascular disease (CVD, i.e., disease of the heart and blood vessels) is a major cause of death globally. Current assessment tools use either clinical or non-clinical factors alone or in combination to assess CVD risk. The aim of this review was to critically appraise, compare, and summarize existing non-clinically based tools for assessing CV...

Background The School Wellness Integration Targeting Child Health (SWITCH) intervention has demonstrated feasibility as an implementation approach to help schools facilitate changes in students’ physical activity (PA), sedentary screen time (SST), and dietary intake (DI). This study evaluated the comparative effectiveness of enhanced (individualize...

Children and adolescents often have poor dietary habits, including consumption of excess energy-dense foods and beverages (e.g., cheese pizza, sugar-sweetened beverages) and insufficient consumption of nutrient-dense foods and beverages (e.g., whole grains, fruits, vegetables, fish, dairy). Such dietary habits may interfere with academic learning a...

Objective: This study examined the individual and combined effects of a height-adjustable desk and an online behavioral intervention on sedentary behavior and health among university employees working from home. Methods: Participants (N = 95) were randomly assigned to one of four conditions: Desk Only, Program Only, Desk + Program, or Control. D...

Accurate and effective local data collection systems are needed to inform community change on youth health behaviors such as physical activity (PA). Systematic methods are particularly important for understanding PA behaviors that may be influenced by individual, interpersonal, organizational, and regional factors. The purpose of this study was to...

Whole-of-community interventions delivered across entire geospatial areas show promise for improving population health for youth cancer prevention. The aims of this scoping review were to synthesize the whole-of-community intervention literature on six modifiable risk factors in youth for cancer prevention (alcohol use, diet, obesity, physical acti...

A common way to address rural population health issues is through community stakeholders working together. Youth physical activity (PA) happens in adult-led in-school and out-of-school group opportunities that vary across communities and generally occur in isolated settings. This study explores similarities and differences in rural community system...

Background The need for sustainable and scalable comprehensive school wellness interventions is evident, and the lack of attention toward capacity-building models warrants investigation. Furthermore, there is a dearth of understanding regarding implementation determinants grounded in dissemination and implementation (D&I) frameworks. This study sou...

Background Although comprehensive approaches to student health promotion through wellness policy implementation show potential for scale-up, scant empirical research has been conducted to meaningfully integrate dissemination and implementation (D&I) in evaluation procedures. Such application is necessary to understand how and why interventions are...

Despite clear evidence of the potential benefits gained by being physically active, children and adolescents (collectively youth) often fail to achieve the recommended daily 60 min of moderate-to-vigorous physical activity (MVPA). Focusing on youth physical activity in context provides the starting point for intervention design, but the design and...

Background Physical activity, a high-frequency health behavior, varies by where children live, learn, and play. Children accumulate physical activity in adult-led in-school and out-of-school settings. Youth sport is a potential setting for physical activity, but there are differences in youth sport participation based on age, sex, and socioeconomic...

This two-part study aimed to first evaluate the preliminary effectiveness of a brief staff training intervention to promote physical activity among children attending an after-school program, and then to determine the feasibility of delivering the training to a larger number of sites. Two Boys and Girls Club after-school sites (intervention, contro...

Background: Schools provide an ideal setting for promoting healthy lifestyles in youth, but it has proven difficult to promote the adoption and implementation of evidence-based programming by school leaders. The SWITCH® (School Wellness Integration Targeting Child Health) intervention is a capacity-building process designed to help school leaders l...

Background Physical activity, a high-frequency health behavior, varies by where youth live, learn, and play. Youth accumulate physical activity in adult-led in-school and out-of-school settings. Youth sport is a potential setting for physical activity, but there are differences in youth sport participation based on age, gender, and socioeconomic st...

Background School wellness programming is important for promoting healthy lifestyles and academic achievement in youth; however, research is needed on methods that can help schools implement and sustain such programs on their own. The purpose of this study was to investigate factors within and outside the school environment that influenced school c...

Research suggests that the dietary quality (DQ) of school lunches meeting the National School Lunch Program (NSLP) requirements may vary significantly. Possible drivers of variation include factors, such as socioeconomic status (SES) and rurality. The purpose of this cross-sectional study was to determine whether there was variation in nutrient con...

Reducing sedentary behavior in the workplace has become an important public health priority; however, some employers have expressed concerns regarding the potential for reduced productivity if employees are not seated while at work. Therefore, the aim of this study was to determine the relationship between workplace sedentary behavior (sitting time...

Background: National School Lunch Program (NSLP) standards have improved school lunch dietary quality (DQ), however, further improvements could be made. Acceptability and feasibility of higher DQ are potential barriers. Thus, the purpose is to compare acceptability and feasibility of best practice (BPSL, optimizing DQ) with typical school lunches...

Background: The purpose of this study was to evaluate the implementation and effectiveness of an ecological, multi-component adolescent obesity prevention intervention called School Wellness Integration Targeting Child Health-Middle School (SWITCH-MS). Methods: Following the effectiveness-implementation hybrid type 3 quasi-experimental design, seve...

Our multi-level model is offered as a proposed approach for youth physical activity intervention efforts to focus heavily on setting leaders, by addressing capability, opportunity, motivation, and behavior (COM-B) model components to improve physical activity leadership behaviors. Leadership behavior can then foster the provision of high-quality op...

In many applications of zero-inflated models, score tests are often used to evaluate whether the population heterogeneity as implied by these models is consistent with the data. The most frequently cited justification for using score tests is that they only require estimation under the null hypothesis. Because this estimation involves specifying a...

Background: School wellness programming is important for promoting academic achievement and healthy lifestyles in youth; however, research is needed on methods that can help schools implement and sustain programs on their own. The purpose of this study was to investigate factors within and outside the school environment that impacted school capacit...

Background: School wellness programming is important for promoting healthy lifestyles and academic achievement in youth; however, research is needed on methods that can help schools implement and sustain such programs on their own. The purpose of this study was to investigate factors within and outside the school environment that influenced school...

Background: School wellness programming is important for promoting healthy lifestyles and academic achievement in youth; however, research is needed on methods that can help schools implement and sustain such programs on their own. The purpose of this study was to investigate factors within and outside the school environment that influenced school...

Background: School wellness programming is important for promoting academic achievement and healthy lifestyles in youth; however, research is needed on methods that can help schools implement and sustain programs on their own. The purpose of this study was to investigate factors within and outside the school environment that impacted school capacit...

As technological innovations continue to be developed and introduced within healthcare, public health, and our daily lives, human beings now have access to sophisticated and powerful tools that could be used in a variety of ways to change health behaviours. Information and communications technology (ICT) features prominently among 21st century inno...

Health behaviour change programs that utilise IT-based delivery have great potential to improve health. Whilst more static Web 1.0 technologies have been somewhat effective, they often failed to promote longer-term user engagement required for greater health promotion impact. With Web 2.0 technologies, however, there is potential for greater engage...

Background Early childhood education programs provide a setting to reach children and parents to modify home environments to prevent obesity. The Healthy Opportunities for Physical Activity and Nutrition Home (HOP’N) Home project was a novel approach that linked Family Child Care Homes (FCCH) to home environments by developing children’s asking ski...

As technology advances and offers enjoyable sedentary alternatives to sport, active recreation, and transportation, there is a growing need to understand and harness the drivers of physical activity and exercise among children and adolescents. Determining how youth perceive their physical capabilities and their opportunities and what motivates them...

School Wellness Integration Targeting Child Health (SWITCH ®) is a school wellness implementation initiative focused on building capacity for schools to plan and coordinate wellness programming. Grounded in Social Cognitive Theory (SCT), the purpose of this study was to evaluate the utility of the web-based, self-regulation system on physical activ...

(1) Background: The double burden of malnutrition (DBM) is a complex problem involving the coexistence of under- and over-nutrition within the same individual, household or population. This review aimed to discuss the correlates of the double burden of malnutrition through the socio-ecological model (SEM); (2) Methods: The PubMed database was syste...

Objective: To explore whether basketball player’s self-determined motivation interacts with environmental contexts and coach training to influence percentage time in moderate-to-vigorous physical activity (%MVPA). Methods: A secondary analysis of data from 76 girls (mean ± SD, 10.5 ± 1.0 years) was conducted. Players were classified as high self-de...

Objectives: Recent research suggests the possibility for significant variability in nutrient content and dietary quality (DQ) of school lunches, even when meeting National School Lunch Program (NSLP) nutrition standards. The purpose of this study was to determine whether there were differences in nutrient content and DQ by socioeconomic status (SE...

Background/Purpose: Schools often need support and assistance to set up and manage ‘whole-of-school’ programs focused on promoting healthy lifestyles in students. The School Wellness Integration Targeting Child Health (SWITCH) initiative is designed to build capacity for schools to plan, implement and sustain effective school wellness programming....

Background This study aimed to investigate the validity of the Active Australia Survey across different subgroups and its responsiveness to change, as few previous studies have examined this. Methods The Active Australia Survey was validated against the ActiGraph as an objective measure of physical activity. Participants (n = 465) wore the ActiGra...

Introduction: Double burden of malnutrition in the form of stunted child and overweight/obese mother has been increasing in countries experiencing nutrition transition. This study aimed to compare maternal nutrition, literacy, dietary diversity, and food security of households categorised by nutritional status of mother-child pairs. Methods: This c...

1) Background: In households experiencing the double burden of malnutrition, stunted children are in a better position for growth improvement when parents are able to direct their resources to support nutrition requirements. This study assesses the effectiveness of maternal nutrition education to reduce child stunting. (2) Methods: This was a Rando...

Girl Scouts (GS) is a setting with large reach to target increased moderate-to-vigorous physical activity (MVPA) in girls. The Scouting Nutrition and Activity Program (SNAP) increased MVPA during intervention troop meetings; therefore, further examination of implementation of SNAP components is warranted to determine the processes contributing to i...

The purpose of this study was to identify the extent to which sedentary behavior interventions are being implemented in Kansas worksites. The WorkWell KS Physical Activity Assessment was administered online to 111 worksites across Kansas from October 2016 through April 2018. Each worksite identified a point of contact to complete the worksite-level...