This paper explores the usage of digital behavior change applied to veganism by applying various concepts from different behavior change models. These models are used as a basis to create several intervention posts that are presented to participants over a period of 8 days via the medium of Instagram. The transtheoretical model is used as a tool of measurement of how participants progress by placing them in distinct stages of change, based on interviews conducted before and after being exposed to the intervention posts. For this purpose, several behavior change interventions are designed with the help of the Behavior Change Wheel model. By measuring the rate of recollection of each intervention post we get an overview of how well different types of posts stick in memory. Of the intervention functions in the Behavior Change Wheel, Education was found to be the most important in our study, meaning that most participants found a lack of knowledge to be a limiting factor. The economical aspect of vegan food was also found to be a major aspect in our sample group of university students. Additionally it was observed that participants were communicating and recommending recipes to each other, it was found that this had a major influence on the behavior of our participants. / Den här rapporten utforskar användningen av digitala beteendeförändrings-metoder applicerat på veganism genom att använda koncept från två beteendeförändrings-modeller. Dessa modeller används som bas för att skapa flera interventions-inlägg som presenteras för deltagarna via Instagram under en period av 8 dagar. Intervjuer utförs före och efter studieperioden för att placera varje deltagare i en utav den Transteoretiska modellens skeden som används för att mäta hur interventions-inläggen påverkar dem. Genom att mäta vilka inlägg som deltagarna kom ihåg får vi en överblick av hur väl olika typer av inlägg fastna på minnet. Modellen Behavior Change Wheel används för att designa själva interventionerna och av dess interventions-funktioner så verkade Utbildning vara den viktigaste i vår studie då de flesta deltagarna ansåg att avsaknaden av kunskap var en begränsande faktor. Den ekonomiska aspekten av vegansk mat ansågs också vara en stor faktor i vår provgrupp som bestod av universitetsstudenter. Ytterligare så observerades det att deltagarna kommunicerade och rekommenderade recept till varandra vilket visade sig ha ett stort inflytande be deras beteende.

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Adults with intellectual disability (ID) have a higher rate of falls than the general population, and changing health behaviors through exercise program could enhance health and reduce falls in this population. However, the feasibility study of fall prevention based on the theoretical framework for adults with ID has not been explored to date. This study examined the feasibility of a home-based exercise intervention for people with ID living in a residential setting. We provided an 8 week intervention consisting of a training workshop for support workers and sessions for adults with ID devoted to behavior reward, education about fall prevention and exercise, and exercise training. Adults with ID (n = 33) and support workers, including caregivers (n = 3), staff (n = 8), and one administrator, participated in this study. Adults with ID significantly improved physical performance, self-efficacy for activity, fall efficacy, and support from friends and support workers. There were no significant changes in free-living PA. There was no adverse event during the intervention, and the average adherence rate was sufficient. Adults with ID, support workers, and an administrator were satisfied with the program and had the intention to continue the program. The intervention was feasible and perhaps efficacious for adults with ID living in group-homes.

<p dir="ltr">Undernutrition affects millions of children in low- and middle- income countries, causing poor growth, poor development, and increased risk of mortality. Many nutrition-sensitive interventions for rural areas increase household access to nutritious foods through increasing home production, a strategy that has small positive effects on child diets. However, there is growing evidence that local markets are also important for dietary quality. Despite the importance of rural markets, the rural food environment and food purchasing practices among rural households are not well-characterized in the literature. It is possible that promoting improved household food purchase practices is an effective method for improving child nutrition in rural areas. Tanzania experiences a high prevalence of undernutrition among children under the age of 5 years, particularly among rural populations. This dissertation utilizes data from the Engaging Fathers for Effective Child Nutrition and Development in Tanzania (EFFECTS), a cluster randomized controlled trial that was conducted in rural Mara, Tanzania. The EFFECTS trial promoted improved diets through both home production and through food purchases through a social and behavior change strategy. We measured changes in dietary diversity (a proxy for diet quality), children’s nutrient intake adequacy, and diversity of foods purchased and produced. This dissertation presents evidence that food purchase diversity is positively associated with dimensions of the rural food environment, including high market food diversity (+0.37 food groups, p=0.01), living within 30 minutes of a market (+0.36 food groups, p=0.001) and household purchasing power (+0.14 food groups per additional million Tanzanian shillings spent by the household, p<0.001). In turn, purchase diversity is positively associated with dietary diversity (b=0.22, p<0.001), and intake adequacy of folate, vitamin B12, and calcium (all p<0.05) among children 9-23 months. Promoting food purchase diversity was effectively integrated into the EFFECTS interventions, resulting in purchasing +0.54 food groups at endline compared to changes in the control (p<0.01), which mediated 25% of the total improvement in child dietary diversity. In contrast, production diversity was associated with increased intake adequacy of vitamin A only (p<0.05), households produced +0.44 food groups at endline compared to control (p<0.05), and this mediated 15% of the total improvement in child dietary diversity. These findings suggest that promoting diverse food purchases, alongside diverse home production, is an effective way to improve children’s diets in similar settings.</p>

The societal problem of pediatric obesity is growing in Sweden with more patients receiving pediatric treatment while the treatment measures have not improved to match the increase. This exploratory study examines a mobile application aiming to improve treatment for pediatric obesity. The study will evaluate the current application through the lens of HCI with a focus on self-care and will be based on digital behavior change intervention (DBCI), persuasive systems, and playful user-centered design (UCD), with design recommendations stated based on the evaluation. User-centered design is a design process involving end-users in the design process, the users were involved through semi-structured interviews. User-centered design is a large part of the study with user input laying the foundation for new design recommendations. Users thought that the application would benefit from having more short-term goals to boost motivation. Furthermore, a heuristic analysis was done to get an expert view on the user interface. The results were promising and indicated some potential improvements for the application, one suggested improvement was to provide more positive feedback to boost motivation. The thesis discusses how more visualization of data might have the potential to both boost motivation and result in a more playful user experience. / Samhällsproblemet med barnfetma växer i Sverige med fler patienter som får pediatrisk behandling samtidigt som behandlings åtgärderna inte har förbättrats för att matcha ökningen. Denna explorativa studie undersöker en mobilapplikation som syftar till att förbättra behandlingen av barnfetma. Studien utvärderar den aktuella applikationen och är baserad på digital beteendeförändringsintervention (DBCI), persuasive systems och lekfull användarcentrerad design (UCD), med designrekommendationer angivna baserat på utvärdering samt semistrukturerade intervjuer. Användarcentrerad design är en stor del av studien med användarinput som lägger grunden för nya design rekommendationer. Intervjuerna lyfte fram att applikationen skulle tjäna på att ha fler kortsiktiga mål för att öka motivationen. Resultaten indikerade potentiella förbättringar för applikationen, exempelvis att ge mer positiv feedback. Slutligen diskuteras hur en mer genomarbetad visualisering av data kan leda dels till ökad motivation och dels till mer lekfull interaktion.