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  • The Application of Self-Determination Theory to Understand the Dietary Adherence Phenomenon in a Weight Loss Trial

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    Markwell_2012_02Thesis.pdf (2.753Mb)
    Author(s)
    Markwell, Katherine E.
    Primary Supervisor
    Somerset, Shawn
    Other Supervisors
    Rowe, Fiona
    Borbasi, Sally
    Year published
    2012
    Metadata
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    Abstract
    Obesity prevalence has reached epidemic levels in Western countries including Australia. It is associated with increased health risks, in particular increased risk of chronic disease, which create a considerable economic burden. Weight loss treatments that result in long-term weight loss and maintenance can reduce health risks and reduce illness and complications associated with the management of some obesity associated chronic diseases. Dietary treatment is an efficacious, low risk and low cost treatment for weight loss. However, low dietary adherence reduces its weight loss effectiveness and the reduction of health risk ...
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    Obesity prevalence has reached epidemic levels in Western countries including Australia. It is associated with increased health risks, in particular increased risk of chronic disease, which create a considerable economic burden. Weight loss treatments that result in long-term weight loss and maintenance can reduce health risks and reduce illness and complications associated with the management of some obesity associated chronic diseases. Dietary treatment is an efficacious, low risk and low cost treatment for weight loss. However, low dietary adherence reduces its weight loss effectiveness and the reduction of health risk in both the shorter and longer term. In weight loss trials low dietary adherence, as well as high attrition, also impact upon the ability to compare the effectiveness of differing dietary prescriptions. Dietary adherence reflects the change in a complex set of behaviours. Due to this complexity, dietary adherence is difficult to measure and indirect or surrogate measures are often used. Additionally, this complexity has hindered the ability to predict adherence using a variety of different factors (e.g. anthropometric, demographic, psychological). In weight loss trials, being able to predict who will adhere would enhance cost-effectiveness. Qualitative investigation and mixed methods investigation are both suited to studying complex behaviours and generating new information to inform adherence prediction. Self-determination theory (SDT) is a theoretical framework that has been used to explore health behaviour change, including dietary change, with promising results.
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    Thesis Type
    Thesis (PhD Doctorate)
    Degree Program
    Doctor of Philosophy (PhD)
    School
    School of Public Health
    DOI
    https://doi.org/10.25904/1912/24
    Copyright Statement
    The author owns the copyright in this thesis, unless stated otherwise.
    Item Access Status
    Public
    Subject
    Obesity
    Dietary adherence
    Self-determination theory
    Weight loss treatments
    Weight loss trials
    Publication URI
    http://hdl.handle.net/10072/367679
    Collection
    • Theses - Higher Degree by Research

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