A randomized controlled trial to evaluate self-determination theory for exercise adherence and weight control: rationale and intervention description

Silva, Marlene N; Markland, David; Minderico, Cláudia S; Vieira, Paulo N; Castro, Margarida M; Coutinho, Sílvia R; Santos, Teresa C; Matos, Margarida G; Sardinha, Luís B; Teixeira, Pedro J
January 2008
BMC Public Health;2008, Vol. 8 Issue 1, p234
Academic Journal
Background: Research on the motivational model proposed by Self-Determination Theory (SDT) provides theoretically sound insights into reasons why people adopt and maintain exercise and other health behaviors, and allows for a meaningful analysis of the motivational processes involved in behavioral self-regulation. Although obesity is notoriously difficult to reverse and its recidivism is high, adopting and maintaining a physically active lifestyle is arguably the most effective strategy to counteract it in the long-term. The purposes of this study are twofold: i) to describe a 3-year randomized controlled trial (RCT) aimed at testing a novel obesity treatment program based on SDT, and ii) to present the rationale behind SDT's utility in facilitating and explaining health behavior change, especially physical activity/exercise, during obesity treatment. Methods: Study design, recruitment, inclusion criteria, measurements, and a detailed description of the intervention (general format, goals for the participants, intervention curriculum, and main SDT strategies) are presented. The intervention consists of a 1-year group behavioral program for overweight and moderately obese women, aged 25 to 50 (and pre-menopausal), recruited from the community at large through media advertisement. Participants in the intervention group meet weekly or bi-weekly with a multidisciplinary intervention team (30 2 h sessions in total), and go through a program covering most topics considered critical for successful weight control. These topics and especially their delivery were adapted to comply with SDT and Motivational Interviewing guidelines. Comparison group receive a general health education curriculum. After the program, all subjects are follow-up for a period of 2 years. Discussion: Results from this RCT will contribute to a better understanding of how motivational characteristics, particularly those related to physical activity/exercise behavioral self-regulation, influence treatment success, while exploring the utility of Self-Determination Theory for promoting health behavior change in the context of obesity. Trial Registration: Clinical Trials Gov. Identifier NCT00513084


Related Articles

  • Over long term, lifestyle intervention supports weight loss. Ryan, Patricia // Research Review (International Council on Active Aging);7/3/2013, Vol. 13 Issue 24, p1 

    The article discusses the Look Action for Health in Diabetes (AHEAD) multicenter clinical trial concerning weight loss supported by long-term, lifestyle intervention, which was published in the June 24, 2013 issue of the "New England Journal of Medicine."

  • A review of Latin American studies on binge eating disorder. Palavras, Marly Amorim; Kaio, Glauber Higa; de Jesus Marí, Jair; Claudino, Angélica Medeiros // Revista Brasileira de Psiquiatria;mai2011 Supplemento 1, Vol. 33, pS95 

    Objective: To review the state of the art of the scientific literature on binge eating disorder in Latin America. Method: A literature search of studies conducted in Latin American countries using the term "binge eating" was performed in the following electronic databases: PubMed, LILACS,...

  • defeating diabetes. Lofshult, Diane // IDEA Fitness Journal;Jun2010, Vol. 7 Issue 6, p50 

    The article highlights the results of a 10-year randomized clinical trial on the link between diabetes incidence and weight loss.

  • Intervention succeeds in helping people lose weight. Ryan, Patricia // Research Review (International Council on Active Aging);Mar2012, Vol. 12 Issue 10, p4 

    The article discusses research on the effect of intervention as an aid to weight loss, referencing a study published in the March 12, 2012 online issue of "Archives of Internal Medicine."

  • A natural fiber complex reduces body weight in the overweight and obese: A double-blind, randomized, placebo-controlled study. Grube, Barbara; Chong, Pee‐Win; Lau, Kai‐Zhia; Orzechowski, Hans‐Dieter // Obesity (19307381);Jan2013, Vol. 21 Issue 1, p58 

    Objective: A proprietary natural fiber complex (Litramine IQP G-002AS) derived from Opuntia ficus-indica, and standardized on lipophilic activity, was previously shown in preclinical and human studies to reduce dietary fat absorption through gastrointestinal (GI) fat binding. Here, we...

  • Autodeterminación y adherencia al ejercicio: estado de la cuestión. González, Olga Molinero; del Valle, Alfonso Salguero; Márquez, Sara // RICYDE. Revista Internacional de Ciencias del Deporte;2011, Vol. 7 Issue 25, p287 

    Self-determination Theory (SDT), conceptualized by Deci and Ryan, provides a framework to understand how individuals can be encouraged to make decisions that will have a positive effect on their long-term health. SDT postulates that intentional human behavior can be described through two...

  • 2. Recommendations on obesity and weight loss. Leiter, Lawrence A.; Abbott, Darlene; Campbell, Norman R.C.; Mendelson, Rena; Ogilvie, Richard I.; Chockalingam, Arun // CMAJ: Canadian Medical Association Journal Supplement;5/4/1999 Hypertension, Vol. 160 Issue 9, pS7 

    Presents a study to provide updated, evidence-based recommendations concerning the effects of weight-loss and maintenance of healthy weight on the prevention and control of hypertension in otherwise healthy adults (except pregnant women). Options; Outcomes; Evidence; Values; Benefits, harms and...

  • A randomized clinical trial of a standard versus vegetarian diet for weight loss: the impact of treatment preference. Burke, L E; Warziski, M; Styn, M A; Music, E; Hudson, A G; Sereika, S M // International Journal of Obesity;Jan2008, Vol. 32 Issue 1, p166 

    Background:With obesity rampant, methods to achieve sustained weight loss remain elusive.Objective:To compare the long-term weight-loss efficacy of 2 cal and fat-restricted diets, standard (omnivorous) versus lacto–ovo–vegetarian, and to determine the effect of a chosen diet versus...

  • Preventive effect of pre-dive hydration on bubble formation in divers. E Gempp // British Journal of Sports Medicine;Mar2009, Vol. 43 Issue 3, p224 

    OBJECTIVE: To investigate whether prehydration 90 min before a dive could decrease bubble formation, and to evaluate the consequent adjustments in plasma volume (PV), water balance and plasma surface tension (ST). METHODS: Eight military divers participated in a crossover trial of pre-dive...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics