A5064409184- Obesity, Physical Activity, Diet
- Health and Lifestyle Studies
- Child Development and Digital Technology
- Sleep and related disorders
- Children's Physical and Motor Development
- Homelessness and Social Issues
- Physical Activity and Health
- Gender, Labor, and Family Dynamics
- Birth, Development, and Health
- Food Security and Health in Diverse Populations
- Health Policy Implementation Science
- COVID-19 and Mental Health
- Obstructive Sleep Apnea Research
- Sleep and Wakefulness Research
- Impact of Technology on Adolescents
- Early Childhood Education and Development
- Urban Transport and Accessibility
- Child and Adolescent Psychosocial and Emotional Development
- Disaster Management and Resilience
- Community Health and Development
- Non-Invasive Vital Sign Monitoring
- Financial Literacy, Pension, Retirement Analysis
- Green IT and Sustainability
- Technology Use by Older Adults
- Body Composition Measurement Techniques
University of South Carolina
2020-2025
University of California, San Francisco
2025
The COVID-19 pandemic may have negatively impacted children's weight status owing to the closure of schools, increased food insecurity and reliance on ultraprocessed foods, reduced opportunities for outdoor activity.In this interrupted time-series study, height were collected from children (n=1,770 children, mean age=8.7 years, 55.3% male, 64.6% Black) transformed into BMI z-score in each August/September 2017 2020. Mixed-effects linear regression estimated yearly change before year (i.e.,...
Abstract Background Children’s BMI gain accelerates during summer. The Structured Days Hypothesis posits that the lack of school day summer vacation negatively impacts children’s obesogenic behaviors (i.e., physical activity, screen time, diet, sleep). This natural experiment examined impact on and body mass index (BMI). Methods Elementary-aged children ( n = 285, 5-12 years, 48.7% male, 57.4% African American) attending a year-round 97) two match-paired traditional schools 188) in United...
Temporary expansion of the Child Tax Credit (CTC) during COVID-19 pandemic provided additional monthly income for US families, with no restrictions on use, from July through December 2021. This study examined food security and children’s dietary intake after three months expanded CTC payments. Parents completed online surveys before Among parents participating in expansion, beverage purchases were most common use funds (45.9 percent), particularly households very low (63.0 percent). From to...
To compare sleep parameters produced by the Fitbit Charge 3 (Fitbit) and Actigraph GT9X accelerometer (Actigraph) to polysomnography in children adolescents.Participants (n = 56, ages 9.2 ± 3.3 years) wore a an on their nondominant wrist concurrently with during overnight observation at children's laboratory. Total time, efficiency, wake after onset, offset were extracted from Fitabase Actilife software packages, respectively, Sadeh algorithm. Bland-Altman plots used assess agreement between...
Abstract Background Children from low-income families experience accelerated BMI gain and learning loss during summer. Healthy Summer Learners (HSL) addresses academic summer by providing academic- health-focused programming. This manuscript reports the effects of HSL on underlying obesogenic behaviors (i.e., physical activity, screen time, sleep, diet) that lead to gain, a necessary first step informing future randomized controlled trial HSL. Methods In 2018 2019 using quasi-experimental...
Abstract Background Despite the widespread endorsement of 24-h movement guidelines (physical activity, sleep, screentime) for youth, no standardized processes categorizing guideline achievement exists. The purpose this study was to illustrate impact different data handling strategies on proportion children meeting (24hrG) and associations with overweight obesity. Methods A subset 524 (ages 5–12 years) complete behavior measures at least 10 days used compare estimates 24hrG. Physical activity...
Abstract This study aims to evaluate the perceived impact of Child Tax Credit expansion on families’ physical, mental, and financial well-being utilizing rigorous qualitative methodology. Parents ( n = 40, ages: 20–49 years, median income: $36,000–48,000/year) in southeastern USA completed interviews October–November 2020 after they received 3–4 monthly payments. were classified into two groups (e.g., household income above [ 21] vs. below 19] 200% federal poverty line) for inductive...
Summary Background Structure may mitigate children's accelerated summer BMI gain and cardiorespiratory‐fitness (CRF) loss. Objectives Examine CRF change during school for year‐round traditional calendar children. Methods Three schools (N = 2279, 1 year‐round) participated in this natural experiment. Children's z‐score (zBMI) (PACER laps) were measured from 2017 to 2019 each May/August. Mixed effects regression estimated monthly zBMI school/summer. Secondary analyses examined differences by...
Pilot/feasibility studies play an important role in the development and refinement of behavioral interventions by providing information about feasibility, acceptability, potential efficacy. Despite their importance wide-spread use, approaches taken scientists to scale-up early-stage larger-scale trials has received little attention. The aim our study was understand that pilot execution trials. We conducted interviews with childhood obesity researchers who had published same or similar...
Digital media has made screen time more available across multiple contexts, but our understanding of the ways children and families use digital lagged behind rapid adoption this technology.
Background: It is essential to quantify the accuracy and precision of bioelectrical impedance (BIA)-estimated percent body fat (%BF) better interpret community-based research findings that utilize opportunistic measures. Methods: Study 1 measured a new dual-frequency foot-to-foot BIA device (Tanita DC-430U) compared with dual-energy X-ray absorptiometry (DXA) among healthy elementary school-aged children (N = 50). 2 examined %BF estimates within between days adults 38). Results: Regarding...
Movement integration (MI) products are designed to provide children with physical activity during general education classroom time. The purpose of this study was examine elementary teachers’ self-reported use MI and subsequent perceptions the facilitators barriers product use. This utilized a mixed-methods design. Elementary teachers (n = 40) at four schools each tested six common in their for one week. Teachers completed daily diary, documenting duration frequency Following test, focus...
Drivers of summer body mass index (BMI) gain in children remain unclear. The Circadian and Circannual Rhythm Model (CCRM) posits BMI is biologically driven, while the Structured Days Hypothesis (SDH) proposes it driven by reduced structure.
Abstract Movement integration (MI) products are one of many MI strategies that aim to reduce students’ sedentary behavior (SB) and increase physical activity (PA) during classroom time. This study examined elementary teachers’ off-the-shelf (i.e., no researcher support) use (GoNoodle Plus [GN], ABC for Fitness [ABC], Take10) their impact on SB PA. Teachers (N = 57) at five schools received product reported strategy uses/day while student (n 1,098, 52% female, 66% Black)...
Preventing Chronic Disease (PCD) is a peer-reviewed electronic journal established by the National Center for Prevention and Health Promotion. PCD provides an open exchange of information knowledge among researchers, practitioners, policy makers, others who strive to improve health public through chronic disease prevention.
Abstract Background: Children’s BMI gain accelerates during summer. The Structured Days Hypothesis posits that the lack of school day summer vacation negatively impacts children’s obesogenic behaviors (i.e., physical activity, screen time, diet, sleep). This natural experiment examined impact on and body mass index (BMI). Methods: Elementary-aged children (n=285, 5-12years, 48.7% male, 57.4% African American) attending a year-round (n=97) two match-paired traditional schools (n=188) in...
Despite the widespread endorsement of 24-hour movement guidelines (physical activity, sleep, screentime) for youth, no standardized processes categorizing guideline achievement exists. The purpose this study was to illustrate impact different data handling strategies on proportion children meeting (24hrG) and associations with overweight obesity.
The 2021 Expanded Child Tax Credit (ECTC) lifted millions of children out poverty and drastically improved well-being. These impacts were particularly salient for families with lower income among those who received the full ECTC benefit. This study gathered lived experiences on cessation explored differential across levels to inform discussions around policy restoration. Semi-structured interviews conducted parents had a child (2-12 years) ECTC. Interviews occurred in May 2022 after ended....
Excessive screen time is associated with poor health and behavioral outcomes in children. However, research on use has been hindered by methodological limitations, including retrospective reports of usual lack momentary etiologic processes occurring within each day.This study designed to assess the feasibility utility a comprehensive multibehavior protocol measure digital media context among racially economically diverse sample preschoolers their families. This paper describes recruitment,...
Abstract Background: Children’s BMI gain accelerates during summer. The Structured Days Hypothesis posits that the lack of school day summer vacation negatively impacts children’s obesogenic behaviors (i.e., physical activity, screen time, diet, sleep). This natural experiment examined impact on and body mass index (BMI). Methods: Elementary-aged children (n=285, 5-12years, 48.7% male, 57.4% African American) attending a year-round (n=97) two match-paired traditional schools (n=188) in...
Abstract Background: Pilot/feasibility studies play an important role in the development and refinement of behavioral interventions by providing information about feasibility, acceptability, potential efficacy. Despite their importance wide-spread use, approaches taken scientists to scale-up early-stage larger-scale trials has received little attention. The aim our study was understand that pilot execution trials. Methods: We conducted interviews with interventionists identified a systematic...