Marcelo Demarzo

Prof. Marcelo Demarzo

Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2014 in Health and Quality of Life Outcomes
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Journal Article
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JGJavier García-Campayo
Javier García-Campayo
MNMayte Navarro-Gil
Mayte Navarro-Gil
EAEva Andrés
Eva Andrés
Jesús Montero-MarinJesús Montero-Marin
Jesús Montero-Marin
LLLorena López-Artal
Lorena López-Artal
Marcelo DemarzoMarcelo Demarzo
Marcelo Demarzo
Self-compassion is a key psychological construct for assessing clinical outcomes in mindfulness-based interventions. The aim of this study was to validate the Spanish versions of the long (26 item) and short (12 item) forms of the Self-Compassion Scale (SCS).

5 September 2017 in PLOS ONE
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Journal Article
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AMAusiàs Cebolla i Martí
Ausiàs Cebolla i Martí
Marcelo DemarzoMarcelo Demarzo
Marcelo Demarzo
PMPatricia Martins
Patricia Martins
JSJoaquim Soler
Joaquim Soler
JGJavier Garcia-Campayo
Javier Garcia-Campayo
Despite the long-term use and evidence-based efficacy of meditation and mindfulness-based interventions, there is still a lack of data about the possible unwanted effects (UEs) of these practices. The aim of this study was to evaluate the occurrence of UEs among meditation practitioners, considering moderating factors such as the type, frequency, and lifetime duration of the meditation practices. An online survey was developed and disseminated through several websites, such as Spanish-, English- and Portuguese-language scientific research portals related to mindfulness and meditation. After excluding people who did not answer the survey correctly or completely and those who had less than two months of meditation experience, a total of 342 people participated in the study. However, only 87 reported information about UEs. The majority of the practitioners were women from Spain who were married and had a University education level. Practices were more frequently informal, performed on a daily basis, and followed by focused attention (FA). Among the participants, 25.4% reported UEs, showing that severity varies considerably. The information requested indicated that most of the UEs were transitory and did not lead to discontinuing meditation practice or the need for medical assistance. They were more frequently reported in relation to individual practice, during focused attention meditation, and when practising for more than 20 minutes and alone. The practice of body awareness was associated with UEs to a lesser extent, whereas focused attention was associated more with UEs. This is the first large-scale, multi-cultural study on the UEs of meditation. Despite its limitations, this study suggests that UEs are prevalent and transitory and should be further studied. We recommend the use of standardized questionnaires to assess the UEs of meditation practices.

1 November 2013 in JMIR mHealth and uHealth
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Journal Article
Open access
IPInmaculada Plaza
Inmaculada Plaza
Marcelo DemarzoMarcelo Demarzo
Marcelo Demarzo
PHPaola Herrera-Mercadal
Paola Herrera-Mercadal
JGJavier García-Campayo
Javier García-Campayo
Mobile and tablet apps, ubiquitous and pervasive computing, wearable computing and domotics for health.

1 November 2015 in The Annals of Family Medicine
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Journal Article
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Marcelo DemarzoMarcelo Demarzo
Marcelo Demarzo
Jesús Montero-MarinJesús Montero-Marin
Jesús Montero-Marin
PCPim Cuijpers
Pim Cuijpers
EZEdurne Zabaleta-del-Olmo
Edurne Zabaleta-del-Olmo
KMKamal R. Mahtani
Kamal R. Mahtani
JGJavier García-Campayo
Javier García-Campayo
PURPOSE Positive effects have been reported after mindfulness-based interventions (MBIs) in diverse clinical and nonclinical populations. Primary care is a key health care setting for addressing common chronic conditions, and an effective MBI designed for this setting could benefit countless people worldwide. Meta-analyses of MBIs have become popular, but little is known about their efficacy in primary care. Our aim was to investigate the application and efficacy of MBIs that address primary care patients. METHODS We performed a meta-analytic review of randomized controlled trials addressing the effect of MBIs in adult patients recruited from primary care settings. The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and Cochrane guidelines were followed. Effect sizes were calculated with the Hedges g in random effects models. RESULTS The meta-analyses were based on 6 trials having a total of 553 patients. The overall effect size of MBI compared with a control condition for improving general health was moderate (g = 0.48; P = .002), with moderate heterogeneity (I2 = 59; P <.05). We found no indication of publication bias in the overall estimates. MBIs were efficacious for improving mental health (g = 0.56; P = .007), with a high heterogeneity (I2 = 78; P <.01), and for improving quality of life (g = 0.29; P = .002), with a low heterogeneity (I2 = 0; P >.05). CONCLUSIONS Although the number of randomized controlled trials applying MBIs in primary care is still limited, our results suggest that these interventions are promising for the mental health and quality of life of primary care patients. We discuss innovative approaches for implementing MBIs, such as complex intervention and stepped care.

13 February 2014 in PLOS ONE
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Jesús Montero-MarinJesús Montero-Marin
Jesús Montero-Marin
JPJavier Prado-Abril
Javier Prado-Abril
Marcelo DemarzoMarcelo Demarzo
Marcelo Demarzo
Santiago GascónSantiago Gascón
Santiago Gascón
JGJavier García-Campayo
Javier García-Campayo
Burnout occurs when professionals use ineffective coping strategies to try to protect themselves from work-related stress. The dimensions of ‘overload’, ‘lack of development’ and ‘neglect’, belonging to the ‘frenetic’, ‘under-challenged’ and ‘worn-out’ subtypes, respectively, comprise a brief typological definition of burnout. The aim of the present study was to estimate the explanatory power of the different coping strategies on the development of burnout subtypes. This was a cross-sectional survey with a random sample of university employees, stratified by occupation (n = 429). Multivariate linear regression models were constructed between the ‘Burnout Clinical Subtypes Questionnaire’, with its three dimensions –overload, lack of development and neglect– as dependent variables, and the ‘Coping Orientation for Problem Experiences’, with its fifteen dimensions, as independent variables. Adjusted multiple determination coefficients and beta coefficients were calculated to evaluate and compare the explanatory capacity of the different coping strategies. The ‘Coping Orientation for Problem Experiences’ subscales together explained 15% of the ‘overload’ (p<0.001), 9% of the ‘lack of development’ (p<0.001), and 21% of the ‘neglect’ (p<0.001). ‘Overload’ was mainly explained by ‘venting of emotions’ (Beta = 0.34; p<0.001); ‘lack of development’ by ‘cognitive avoidance’ (Beta = 0.21; p<0.001); and ‘neglect’ by ‘behavioural disengagement’ (Beta = 0.40; p<0.001). Other interesting associations were observed. These findings further our understanding of the way in which the effectiveness of interventions for burnout may be improved, by influencing new treatments and preventive programmes using features of the strategies for handling stress in the workplace.

22 January 2014 in PLOS ONE
Verified
Journal Article
Open access
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JSJoaquim Soler
Joaquim Soler
AMAusiàs Cebolla i Martí
Ausiàs Cebolla i Martí
AFAlbert Feliu-Soler
Albert Feliu-Soler
Marcelo DemarzoMarcelo Demarzo
Marcelo Demarzo
JPJuan C. Pascual
Juan C. Pascual
JGJavier García-Campayo
Javier García-Campayo
Mindfulness has been described as an inherent human capability that can be learned and trained, and its improvement has been associated with better health outcomes in both medicine and psychology. Although the role of practice is central to most mindfulness programs, practice-related improvements in mindfulness skills is not consistently reported and little is known about how the characteristics of meditative practice affect different components of mindfulness. The present study explores the role of practice parameters on self-reported mindfulness skills. A total of 670 voluntary participants with and without previous meditation experience (n = 384 and n = 286, respectively) responded to an internet-based survey on various aspects of their meditative practice (type of meditation, length of session, frequency, and lifetime practice). Participants also completed the Five Facets Mindfulness Questionnaire (FFMQ), and the Experiences Questionnaire (EQ). The group with meditation experience obtained significantly higher scores on all facets of FFMQ and EQ questionnaires compared to the group without experience. However different effect sizes were observed, with stronger effects for the Observing and Non-Reactivity facets of the FFMQ, moderate effects for Decentering in EQ, and a weak effect for Non-judging, Describing, and Acting with awareness on the FFMQ. Our results indicate that not all practice variables are equally relevant in terms of developing mindfulness skills. Frequency and lifetime practice – but not session length or meditation type – were associated with higher mindfulness skills. Given that these 6 mindfulness aspects show variable sensitivity to practice, we created a composite index (MINDSENS) consisting of those items from FFMQ and EQ that showed the strongest response to practice. The MINDSENS index was able to correctly discriminate daily meditators from non-meditators in 82.3% of cases. These findings may contribute to the understanding of the development of mindfulness skills and support trainers and researchers in improving mindfulness-oriented practices and programs.