Grounded in the field of obesity rehabilitation, the current PhD thesis is aimed at evaluating the effectiveness of an Acceptance and Commitment Therapy-oriented psychological intervention in promoting the adoption of a healthy lifestyle and improving the psychological conditions of patients with obesity, within a multidisciplinary rehabilitation program for weight loss. Chapter 1 of the current thesis provides an overview of obesity disease, discussing its prevalence, its main causes, and its consequences on general physical and psychological health, and presenting guidelines that inform the treatment of obesity. Chapter 2 introduced Acceptance and Commitment Therapy (ACT), one of the most promising third-wave CBTs in targeting self-awareness and self-regulation. In chapter 2 the theoretical framework underlying ACT as well as empirical evidence to support the application of ACT in the field of obesity treatment have been discussed. Chapter 3 and chapter 4 provided the first two empirical contributions of the current thesis. By assuming an ACT-oriented perspective, they have aimed to explore the impact of psychological inflexibility on emotional eating, both in adults (chapter 3) and adolescents (chapter 4). Such premise was the basis for the subsequent empirical contributions of the current thesis (presented in chapters 5 and 6) both aimed at evaluating the effect of an ACT-oriented psychological intervention for individuals with obesity, attending a multidisciplinary rehabilitation program for weight loss. The study presented in chapter 5 was specifically aimed at assessing the specific role of each subcomponent of the psychological flexibility model (Openness, Awareness, and Engagement), in promoting weight loss and weight loss maintenance over time as well as improving psychological conditions in a sample of Italian adult individuals with obesity. Finally, the study presented in chapter 6 was specifically aimed at assessing the effects of an ACT-based intervention added to a standard multidisciplinary rehabilitation program for weight loss in a group of adolescents with obesity to improve their psychological conditions
Inserita nel campo della riabilitazione dell'obesità, la presente tesi di dottorato si propone di valutare l'efficacia di un intervento psicologico orientato all'Acceptance and Commitment Therapy nel promuovere l'adozione di uno stile di vita sano e nel migliorare le condizioni psicologiche dei pazienti affetti da obesità, all'interno di un programma di riabilitazione multidisciplinare per la perdita di peso. Il Capitolo 1 della presente tesi fornisce una panoramica della malattia dell'obesità, discutendo la sua prevalenza, le sue principali cause e le sue conseguenze sulla salute fisica e psicologica generale, e presentando le linee guida che informano il trattamento dell'obesità. Il capitolo 2 introduce l'Acceptance and Commitment Therapy (ACT), una delle CBT di terza ondata più promettenti per quanto riguarda l'autoconsapevolezza e l'autoregolazione. Nel capitolo 2 sono stati discussi il quadro teorico alla base dell'ACT e le prove empiriche a sostegno dell'applicazione dell'ACT nel campo del trattamento dell'obesità. Il capitolo 3 e il capitolo 4 hanno fornito i primi due contributi empirici della presente tesi. Assumendo una prospettiva orientata all'ACT, si è cercato di esplorare l'impatto dell'inflessibilità psicologica sull'alimentazione emotiva, sia negli adulti (capitolo 3) sia negli adolescenti (capitolo 4). Tale premessa è stata alla base dei successivi contributi empirici della presente tesi (presentati nei capitoli 5 e 6), entrambi volti a valutare l'effetto di un intervento psicologico orientato all'ACT per soggetti affetti da obesità, frequentanti un programma riabilitativo multidisciplinare per la perdita di peso. Lo studio presentato nel capitolo 5 è stato specificamente finalizzato a valutare il ruolo specifico di ogni sottocomponente del modello di flessibilità psicologica (Openness, Awareness e Engagement), nel promuovere la perdita di peso e il suo mantenimento nel tempo e nel migliorare le condizioni psicologiche in un campione di individui adulti italiani con obesità. Infine, lo studio presentato nel capitolo 6 era specificamente rivolto a valutare gli effetti di un intervento basato sull'ACT aggiunto a un programma multidisciplinare standard di riabilitazione per la perdita di peso in un gruppo di adolescenti con obesità per migliorare le loro condizioni psicologiche.
GUERRINI USUBINI, ANNA, THE "ACTYOURCHANGE STUDY": PROMOTING A HEALTHY LIFESTYLE IN PATIENTS WITH OBESITY WITH ACCEPTANCE AND COMMITMENT THERAPY, CASTELNUOVO, GIANLUCA, Università Cattolica del Sacro Cuore Milano:Ciclo XXXV [https://hdl.handle.net/10807/286003]
THE "ACTYOURCHANGE STUDY": PROMOTING A HEALTHY LIFESTYLE IN PATIENTS WITH OBESITY WITH ACCEPTANCE AND COMMITMENT THERAPY
Guerrini Usubini, Anna
2023
Abstract
Grounded in the field of obesity rehabilitation, the current PhD thesis is aimed at evaluating the effectiveness of an Acceptance and Commitment Therapy-oriented psychological intervention in promoting the adoption of a healthy lifestyle and improving the psychological conditions of patients with obesity, within a multidisciplinary rehabilitation program for weight loss. Chapter 1 of the current thesis provides an overview of obesity disease, discussing its prevalence, its main causes, and its consequences on general physical and psychological health, and presenting guidelines that inform the treatment of obesity. Chapter 2 introduced Acceptance and Commitment Therapy (ACT), one of the most promising third-wave CBTs in targeting self-awareness and self-regulation. In chapter 2 the theoretical framework underlying ACT as well as empirical evidence to support the application of ACT in the field of obesity treatment have been discussed. Chapter 3 and chapter 4 provided the first two empirical contributions of the current thesis. By assuming an ACT-oriented perspective, they have aimed to explore the impact of psychological inflexibility on emotional eating, both in adults (chapter 3) and adolescents (chapter 4). Such premise was the basis for the subsequent empirical contributions of the current thesis (presented in chapters 5 and 6) both aimed at evaluating the effect of an ACT-oriented psychological intervention for individuals with obesity, attending a multidisciplinary rehabilitation program for weight loss. The study presented in chapter 5 was specifically aimed at assessing the specific role of each subcomponent of the psychological flexibility model (Openness, Awareness, and Engagement), in promoting weight loss and weight loss maintenance over time as well as improving psychological conditions in a sample of Italian adult individuals with obesity. Finally, the study presented in chapter 6 was specifically aimed at assessing the effects of an ACT-based intervention added to a standard multidisciplinary rehabilitation program for weight loss in a group of adolescents with obesity to improve their psychological conditionsFile | Dimensione | Formato | |
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