RESUMO
Psychosocial stress in cancer survivors may contribute to compromised quality of life and negative cancer outcomes, which can be exacerbated by poor coping skills and emotional reactivity. Mindfulness based interventions (MBIs) have shown effectiveness in reducing stress, improving quality of life and coping skills in cancer survivors. We tested whether an MBI would also improve reactivity to an acute laboratory stress task. A total of 77 women with a cancer diagnosis were recruited for a waitlist-controlled trial of Mindfulness-Based Cancer Recovery (MBCR). Participants completed a laboratory-based psychosocial stress paradigm (the Trier Social Stress Test-TSST) pre- and post-intervention, throughout which cortisol and cardiovascular profiles were measured. Neither cortisol nor cardiovascular reactivity to the TSST was changed pre-to post intervention, either between or within groups. Blunted cortisol, but not cardiovascular, reactivity was observed across both groups, which may have contributed to the lack of intervention effect. Previous research suggests that diurnal cortisol is blunted following cancer treatment; the current findings suggest this blunting may also occur during exposure to acute stress.
Assuntos
Sobreviventes de Câncer , Atenção Plena , Neoplasias , Feminino , Humanos , Hidrocortisona , Qualidade de Vida , Estresse Psicológico/terapiaRESUMO
Despite growing evidence in support of mindfulness as an underlying mechanism of mindfulness-based interventions (MBIs), it has been suggested that nonspecific therapeutic factors, such as the experience of social support, may contribute to the positive effects of MBIs. In the present study, we examined whether change in mindfulness and/or social support mediated the effect of Mindfulness-Based Cancer Recovery (MBCR) compared to another active intervention (i.e. Supportive Expressive Group Therapy (SET)), on change in mood disturbance, stress symptoms and quality of life. A secondary analysis was conducted of a multi-site randomized clinical trial investigating the impacts of MBCR and SET on distressed breast cancer survivors (MINDSET). We applied the causal steps approach with bootstrapping to test mediation, using pre- and post-intervention questionnaire data of the participants who were randomised to MBCR (n = 69) or SET (n = 70). MBCR participants improved significantly more on mood disturbance, stress symptoms and social support, but not on quality of life or mindfulness, compared to SET participants. Increased social support partially mediated the impact of MBCR versus SET on mood disturbance and stress symptoms. Because no group differences on mindfulness and quality of life were observed, no mediation analyses were performed on these variables. Findings showed that increased social support was related to more improvement in mood and stress after MBCR compared to support groups, whereas changes in mindfulness were not. This suggests a more important role for social support in enhancing outcomes in MBCR than previously thought.
Assuntos
Sobreviventes de Câncer/psicologia , Atenção Plena , Apoio Social , Feminino , Humanos , Pessoa de Meia-Idade , Psicoterapia de Grupo , Qualidade de Vida , Estresse Psicológico/terapia , Inquéritos e QuestionáriosRESUMO
OBJECTIVES: This waitlist-controlled study examined the timing of changes during Mindfulness-Based Cancer Recovery (MBCR), and explored sequential mediated effects through enhanced mindfulness and emotion regulation (ER) in a cancer population. METHOD: Patients were recruited from the MBCR program waitlist and were either registered for immediate participation (n = 135) or waiting for the next program to begin (n = 76). Participants completed self-report measures of stress symptoms, mood disturbance, mindfulness, and ER (rumination, worry, and experiential avoidance) pre-, mid- and post-MBCR or waiting period. RESULTS: There was a relatively early effect of MBCR on observing, nonjudging, rumination, and worry. All other measures changed later. Early changes in present-focused nonjudgmental awareness, rumination, and worry mediated the effect of MBCR on mindfulness skills such as nonreactivity later on. CONCLUSION: The constructs of mindfulness and ER may overlap and changes may be mutually facilitative during MBCR. The study informs our understanding of mindfulness and ER as mechanisms of mindfulness-based interventions.
Assuntos
Meditação , Atenção Plena/métodos , Neoplasias/psicologia , Estresse Psicológico/terapia , Adulto , Idoso , Institutos de Câncer , Emoções , Feminino , Humanos , Modelos Lineares , Estudos Longitudinais , Masculino , Meditação/métodos , Meditação/psicologia , Pessoa de Meia-Idade , Autorrelato , Resultado do Tratamento , Listas de EsperaRESUMO
The present study is a waitlist-controlled investigation of the impact of a Mindfulness-Based Stress Reduction (MBSR) program on mindful attentiveness, rumination and blood pressure (BP) in women with cancer. Female post-treatment cancer patients were recruited from the MBSR program waitlist. Participants completed self-report measures of mindfulness and rumination and measured casual BP at home before and after the 8-week MBSR program or waiting period. MBSR group participants demonstrated higher levels of mindful attentiveness and decreased ruminative thinking following the intervention but no difference in BP, when compared to controls. In the MBSR group, decreases in rumination correlated with decreases in SBP and increases in mindful attention. When participants were assigned to "Higher BP" and "Lower BP" conditions based on mean BP values at week 1, "Higher BP" participants in the MBSR group (n=19) had lower SBP at week 8 relative to the control group (n=16). A MBSR program may be efficacious in increasing mindful attention and decreasing rumination in women with cancer. Randomized controlled trials are needed to evaluate an impact on clinically elevated BP.
Assuntos
Atenção/fisiologia , Terapia Comportamental/métodos , Pressão Sanguínea/fisiologia , Meditação/psicologia , Neoplasias/psicologia , Estresse Psicológico/terapia , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Qualidade de Vida , Autocuidado , Estresse Psicológico/psicologia , Inquéritos e Questionários , Pensamento , Resultado do Tratamento , Listas de Espera , MulheresRESUMO
Integrative Oncology (IO) programs are increasingly emerging at cancer centers and universities worldwide; often these include some combination of clinical service, research, and/or training. However, one gap that often occurs is in moving research results into practice, due to complexities and differences between research and service delivery models and priorities. We recently created the ACTION (Alberta Complementary Therapy and Integrative Oncology) Centre with the goal of partnering with the provincial public health service to promote and facilitate evidence-based integrative oncology care throughout Alberta. The Centre bridges the silos of academia and clinical care by embodying 3 core principles, to be (1) Patient-oriented, (2) Collaborative, and (3) Evidence-based. The ACTION Centre oversees the implementation of clinical research and academic training, and supports the development of clinical services, as well as patient and provider education. The ACTION Centre has five components which include: (1) Patient and healthcare provider education; (2) Individualized IO consultation and treatment planning; (3) Supporting access to complementary therapies; (4) Clinical trials of IO interventions, and; (5) Student training through the TRACTION (Training in Clinical Trials and Integrative Oncology) program. We offer this model of shareholder collaboration in the hopes that other IO programs may be able to use it as a template to further their own progress, working collaboratively toward the ultimate goal of advancing evidence-based, comprehensive, integrative healthcare to improve the lives of people affected by cancer.