Matching Items (6)
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Description
Among its many roles in the body, ascorbic acid functions as a cofactor in carnitine and catecholamine synthesis, metabolites involved in fat oxidation and mood regulation, respectively. Given that fat oxidation and mood affect one's feelings of vigor, I hypothesized that those with lower levels of plasma ascorbic acid

Among its many roles in the body, ascorbic acid functions as a cofactor in carnitine and catecholamine synthesis, metabolites involved in fat oxidation and mood regulation, respectively. Given that fat oxidation and mood affect one's feelings of vigor, I hypothesized that those with lower levels of plasma ascorbic acid would be less likely to exercise at high levels than individuals with adequate or high levels of vitamin C. To test this, I conducted a double-blind, placebo-controlled intervention. A group of healthy, non-smoking males between the ages of 18 and 40 were put on a vitamin C-restricted diet for two weeks and then randomized to a control group that received placebo capsules for six weeks or an intervention group that received 500 mg of vitamin C daily for six weeks. The men were restricted from eating foods high in vitamin C, instructed to wear a pedometer daily and to record their step counts, and to take a pill daily (either the placebo or vitamin C supplement). Unexpectedly, the subjects receiving the intervention had lower step counts than the control group; the control group, rather than the vitamin C group, significantly (p=0.017) increased their steps at week 8 compared to week 2. However, I also estimated daily Metabolic Equivalent Tasks (METs), and subjects receiving the placebo had lower MET outputs than subjects receiving vitamin C at the end of the trial, in spite of having higher step counts. This means the intensity of their activity was higher, based on METs expenditure. Additionally, depression scores (POMS-D) as measured by the Profile of Mood States (POMS) questionnaire were significantly higher (p=0.041) among subjects receiving the placebo at the end of the study. These latter results are consistent with my expectations that subjects with higher levels of plasma vitamin C would have improved mood and higher energy output than subjects with low levels of vitamin C.
ContributorsNetland, Heidi (Author) / Johnston, Carol S (Thesis advisor) / Swan, Pamela D (Committee member) / Hampl, Jeffery S (Committee member) / Arizona State University (Publisher)
Created2011
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Description

Objective: Women, Infants, and Children (WIC) cash value vouchers (CVV) have been inconsistently redeemed in Arizona. The objective of this study was to explore perceived barriers to use of CVV as well as strategies participants use to overcome them.

Design: Eight focus groups were conducted to explore attitudes and

Objective: Women, Infants, and Children (WIC) cash value vouchers (CVV) have been inconsistently redeemed in Arizona. The objective of this study was to explore perceived barriers to use of CVV as well as strategies participants use to overcome them.

Design: Eight focus groups were conducted to explore attitudes and behaviors related to CVV use.

Setting: Focus groups were conducted at 2 WIC clinics in metro-Phoenix, AZ.

Participants: Participants in WIC who were at least 18 years of age and primarily responsible for buying and preparing food for their households.

Phenomenon of interest: Perceived barriers to CVV use and strategies used to maximize their purchasing value.

Analysis: Transcripts were analyzed using a general inductive approach to identify emergent themes.

Results: Among 41 participants, multiple perceived barriers emerged, such as negative interactions in stores or confusion over WIC rules. Among experienced shoppers, WIC strategies also emerged to deal with barriers and maximize CVV value, including strategic choice of times and locations at which to shop and use of price-matching, rewards points, and other ways to increase purchasing power.

Conclusions and implications: Arizona WIC participants perceived barriers that limit easy redemption of CVV. Useful strategies were also identified that could be important to explore further to improve WIC CVV purchasing experiences.

ContributorsBertmann, Farryl M. W (Author) / Barroso, Cristina (Author) / Ohri-Vachaspati, Punam (Author) / Hampl, Jeffery S (Author) / Wharton, Christopher M (Author) / Sell, Karen (Author)
Created2014-05-01
Description

Frequent consumption of fruits and vegetables has been linked to better dietary quality and positive health outcomes. Unfortunately, fruit and vegetable consumption among elementary school children falls far short of the recommendations. Therefore, finding strategies to promote fruit and vegetable consumption in children is a public health priority. One such strategy

Frequent consumption of fruits and vegetables has been linked to better dietary quality and positive health outcomes. Unfortunately, fruit and vegetable consumption among elementary school children falls far short of the recommendations. Therefore, finding strategies to promote fruit and vegetable consumption in children is a public health priority. One such strategy is the United States Department of Agriculture’s (USDA) Fresh Fruit and Vegetable Program (FFVP), which provides fresh fruits and vegetables as snacks, at least twice per week, in elementary schools with high student enrollment from low-income households. The program aims to expand the variety of fruits and vegetables children experience, impacting their present and future health outcomes.  Another USDA initiative, the Supplemental Nutrition Assistance Program Education (SNAP-Ed), offered in community and school settings, aims to improve the likelihood that SNAP eligible individuals will make healthy food choices consistent with the Dietary Guidelines for Americans.  SNAP-Ed is a potential resource for FFVP schools, providing nutrition education, staff training, and promotional materials.

ContributorsGruner, Jessie (Contributor) / DeWeese, Robin (Contributor) / Ohri-Vachaspati, Punam (Contributor) / Mollner, Kristi (Contributor) / Lacagnina, Gina (Contributor) / Arizona Nutrition Network (Funder)
Created2016
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Description

Meatless Monday is an initiative that encourages actionable steps toward the reduction of meat consumption by asking participants to eat meat-free on Mondays. Many organizations, cities, schools, and correctional facilities have implemented Meatless Monday initiatives as a push to improve environmental sustainability, human health, and the welfare of animals. Such

Meatless Monday is an initiative that encourages actionable steps toward the reduction of meat consumption by asking participants to eat meat-free on Mondays. Many organizations, cities, schools, and correctional facilities have implemented Meatless Monday initiatives as a push to improve environmental sustainability, human health, and the welfare of animals. Such initiatives provide an opportunity to educate consumers on the health benefits of a plant-forward diet, the environmental impact of meat production, animal welfare issues, the innovation of non-meat proteins, and to engage stakeholders in gaining more control over their food choices. This report offers a summary of seven Meatless Monday initiatives throughout the U.S., highlighting best practices and notable challenges of implementing and maintaining such an initiative in three different contexts: local government, school systems, and non-profit or volunteer-led organizations. This report was conducted through an extensive look at previous research, news articles, and marketing materials, as well as interviews with stakeholders in six mid-sized U.S. cities.

ContributorsAlvarado, Francisca (Author) / Coghlan, Jane (Author) / Cooper, Dory (Author) / Petersen, Cam (Author) / Wyman, Carly (Contributor) / Giraud, Esteve Gaelle (Contributor) / Dart, Jesse (Contributor) / Benard, Nick (Contributor) / Johns Hopkins Center for a Livable Future (Client) / Meatless Monday (Client) / Swette Center for Sustainable Food Systems (Contributor)
Created2022-04-01
Food insecurity and food assistance program participation in the U.S.: One year into the COVID-19 pandemic
Description

Beginning in March 2020, the COVID-19 pandemic triggered a sudden and severe economic downturn and led to disruptions in domestic and international food systems and supply chains. Over the first few months of the pandemic, in the United States, many stores had empty shelves, bars and restaurants closed, and children

Beginning in March 2020, the COVID-19 pandemic triggered a sudden and severe economic downturn and led to disruptions in domestic and international food systems and supply chains. Over the first few months of the pandemic, in the United States, many stores had empty shelves, bars and restaurants closed, and children could no longer go to school. The unemployment rate increased from 3.5% in February 2020 to 14.8% in April 2020, leading to economic instability for many households. As a result, household food insecurity, defined as having limited or inconsistent access to nutritious and affordable food, increased rapidly.

During the first months of 2021, vaccinations began rolling out, more individuals returned to in-person work, children to schools, and restrictions were gradually phased out. Unemployment has decreased since the April 2020 peak to 5.4% in July 2021, but remains above pre-pandemic levels. This brief describes the prevalence of household food insecurity, job disruptions, and food-related behaviors as reported by a nationally representative sample of 1,643 U.S. adults, both in the year prior to the COVID-19 pandemic (March 2019 – March 2020) and during the first four months of 2021 (January – April 2021), a period representing approximately one year since the onset of the pandemic.

Created2021-08