Department of Population Health Sciences

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Browsing Department of Population Health Sciences by Department "Human Nutrition, Foods, and Exercise"

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    Evaluation of a mindfulness-based stress management and nutrition education program for mothers
    Kennedy, Lauren E.; Hosig, Kathy L.; Ju, Young; Serrano, Elena L. (Cogent, 2019-10-31)
    Background: Maternal stress is implicated in obesity and obesity-related chronic disease. This can have consequences for their children’s weight status and disease development. Interventions are needed that target both psychological stress and diet using evidence-based approaches. Objective: The objective of this study was to evaluate the perceived impact of the Slow Down intervention on participants’ self-efficacy for practicing mindfulness and the barriers and perceived benefits to adopting intervention target behaviors. The ways that knowledge was brokered and transferred provided guidance on the translation of mindfulness within dietary interventions. Design: This was a qualitative evaluation of a mixed-methods quasi-experimental pilot intervention. A focus group was conducted post-intervention and a follow-up semi-structured individual interview took place 4–6 weeks post-intervention. Results: Self-efficacy for practicing mindfulness skills was generally high or described as mixed by participants. Reported benefits from participating in the intervention included increased social support, improved sleep, and improved reaction to stressors, among others. Participants reported barriers to making changes, including family or partner buy-in. Participants cited several ways that knowledge was gained and transferred throughout the intervention that could improve the translation of mindfulness research into practice. Conclusions: With increasing evidence supporting the use of mindfulness in public health nutrition interventions, there are gaps in describing the benefits of participation in mindfulness interventions and the barriers to making health behavior changes as a result of participation. This study demonstrates the potential for nutrition interventions that include psychological health and provides guidance on how to implement mindfulness practice into public health practice settings.
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    Implementation of the Department of Housing and Urban Development’s Smoke-Free Rule: A Socio-Ecological Qualitative Assessment of Administrator and Resident Perceptions
    Horn, Kimberly; Johnson, Sallie B.; Rincón-Gallardo Patiño, Sofía; Krost, Kevin; Gray, Tiffany; Dearfield, Craig; Du, Chenguang; Bernat, Debra (MDPI, 2021-08-24)
    In July 2018, the United States Department of Housing and Urban Development (HUD) implemented a mandatory smoke-free rule in public housing. This study assessed administrator and resident perceptions of rule implementation during its initial year in the District of Columbia Housing Authority (DCHA). Assessment included nine focus groups (n = 69) with residents and in-depth interviews with administrators (n = 7) and residents (n = 26) from 14 DCHA communities (family = 7 and senior/disabled = 7). Semi-structured discussion guides based on the multi-level socio-ecological framework captured dialogue that was recorded, transcribed verbatim, and coded inductively. Emerging major themes for each socio-ecological framework level included: (1) Individual: the rule was supported due to perceived health benefits, with stronger support among non-smokers; (2) Interpersonal: limiting secondhand smoke exposure was perceived as a positive for vulnerable residents; (3) Organizational: communication, signage, and cessation support was perceived as a need; (4) Community: residents perceived mobility, disability, weather, and safety-related issues as barriers; and (5) Public Policy: lease amendments were perceived as enablers of rule implementation but expressed confusion about violations and enforcement. A majority of administrators and residents reported favorable implications of the mandated HUD rule. The novel application of a socio-ecological framework, however, detected implementation nuances that required improvements on multiple levels, including more signage, cessation support, clarification of enforcement roles, and addressing safety concerns.
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    A Mathematical Model of Skeletal Muscle Disease and Immune Response in the mdx Mouse
    Jarrah, Abdul Salam; Castiglione, Filippo; Evans, Nicholas P.; Grange, Robert W.; Laubenbacher, Reinhard C. (Hindawi, 2014-06-11)
    Duchenne muscular dystrophy (DMD) is a genetic disease that results in the death of affected boys by early adulthood. The genetic defect responsible for DMD has been known for over 25 years, yet at present there is neither cure nor effective treatment for DMD. During early disease onset, the mdx mouse has been validated as an animal model for DMD and use of this model has led to valuable but incomplete insights into the disease process. For example, immune cells are thought to be responsible for a significant portion of muscle cell death in the mdx mouse; however, the role and time course of the immune response in the dystrophic process have not been well described. In this paper we constructed a simple mathematical model to investigate the role of the immune response in muscle degeneration and subsequent regeneration in the mdx mouse model of Duchenne muscular dystrophy. Our model suggests that the immune response contributes substantially to the muscle degeneration and regeneration processes. Furthermore, the analysis of the model predicts that the immune system response oscillates throughout the life of the mice, and the damaged fibers are never completely cleared.